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<?php
/**
* Post functions and post utility function.
*
* @package WordPress
* @subpackage Post
* @since 1.5.0
*/
//
// Post Type Registration
//
/**
* Creates the initial post types when 'init' action is fired.
*
* @since 2.9.0
*/
function create_initial_post_types() {
register_post_type( 'post', array(
'labels' => array(
'name_admin_bar' => _x( 'Post', 'add new on admin bar' ),
),
'public' => true,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'map_meta_cap' => true,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'post-formats' ),
) );
register_post_type( 'page', array(
'labels' => array(
'name_admin_bar' => _x( 'Page', 'add new on admin bar' ),
),
'public' => true,
'publicly_queryable' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'page',
'map_meta_cap' => true,
'hierarchical' => true,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ),
) );
register_post_type( 'attachment', array(
'labels' => array(
'name' => _x('Media', 'post type general name'),
'name_admin_bar' => _x( 'Media', 'add new from admin bar' ),
'add_new' => _x( 'Add New', 'add new media' ),
'edit_item' => __( 'Edit Media' ),
'view_item' => __( 'View Attachment Page' ),
),
'public' => true,
'show_ui' => true,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'capabilities' => array(
'create_posts' => 'upload_files',
),
'map_meta_cap' => true,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'show_in_nav_menus' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'author', 'comments' ),
) );
add_post_type_support( 'attachment:audio', 'thumbnail' );
add_post_type_support( 'attachment:video', 'thumbnail' );
register_post_type( 'revision', array(
'labels' => array(
'name' => __( 'Revisions' ),
'singular_name' => __( 'Revision' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'revision.php?revision=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'map_meta_cap' => true,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'can_export' => false,
'delete_with_user' => true,
'supports' => array( 'author' ),
) );
register_post_type( 'nav_menu_item', array(
'labels' => array(
'name' => __( 'Navigation Menu Items' ),
'singular_name' => __( 'Navigation Menu Item' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'hierarchical' => false,
'rewrite' => false,
'delete_with_user' => false,
'query_var' => false,
) );
register_post_status( 'publish', array(
'label' => _x( 'Published', 'post' ),
'public' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop( 'Published <span class="count">(%s)</span>', 'Published <span class="count">(%s)</span>' ),
) );
register_post_status( 'future', array(
'label' => _x( 'Scheduled', 'post' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop('Scheduled <span class="count">(%s)</span>', 'Scheduled <span class="count">(%s)</span>' ),
) );
register_post_status( 'draft', array(
'label' => _x( 'Draft', 'post' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop( 'Draft <span class="count">(%s)</span>', 'Drafts <span class="count">(%s)</span>' ),
) );
register_post_status( 'pending', array(
'label' => _x( 'Pending', 'post' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop( 'Pending <span class="count">(%s)</span>', 'Pending <span class="count">(%s)</span>' ),
) );
register_post_status( 'private', array(
'label' => _x( 'Private', 'post' ),
'private' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop( 'Private <span class="count">(%s)</span>', 'Private <span class="count">(%s)</span>' ),
) );
register_post_status( 'trash', array(
'label' => _x( 'Trash', 'post' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
'label_count' => _n_noop( 'Trash <span class="count">(%s)</span>', 'Trash <span class="count">(%s)</span>' ),
'show_in_admin_status_list' => true,
) );
register_post_status( 'auto-draft', array(
'label' => 'auto-draft',
'internal' => true,
'_builtin' => true, /* internal use only. */
) );
register_post_status( 'inherit', array(
'label' => 'inherit',
'internal' => true,
'_builtin' => true, /* internal use only. */
'exclude_from_search' => false,
) );
}
/**
* Retrieve attached file path based on attachment ID.
*
* By default the path will go through the 'get_attached_file' filter, but
* passing a true to the $unfiltered argument of get_attached_file() will
* return the file path unfiltered.
*
* The function works by getting the single post meta name, named
* '_wp_attached_file' and returning it. This is a convenience function to
* prevent looking up the meta name and provide a mechanism for sending the
* attached filename through a filter.
*
* @since 2.0.0
*
* @param int $attachment_id Attachment ID.
* @param bool $unfiltered Optional. Whether to apply filters. Default false.
* @return string|bool The file path to where the attached file should be, false otherwise.
*/
function get_attached_file( $attachment_id, $unfiltered = false ) {
$file = get_post_meta( $attachment_id, '_wp_attached_file', true );
// If the file is relative, prepend upload dir.
if ( $file && 0 !== strpos($file, '/') && !preg_match('|^.:\\\|', $file) && ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) )
$file = $uploads['basedir'] . "/$file";
if ( $unfiltered )
return $file;
/**
* Filter the attached file based on the given ID.
*
* @since 2.1.0
*
* @param string $file Path to attached file.
* @param int $attachment_id Attachment ID.
*/
return apply_filters( 'get_attached_file', $file, $attachment_id );
}
/**
* Update attachment file path based on attachment ID.
*
* Used to update the file path of the attachment, which uses post meta name
* '_wp_attached_file' to store the path of the attachment.
*
* @since 2.1.0
*
* @param int $attachment_id Attachment ID.
* @param string $file File path for the attachment.
* @return bool True on success, false on failure.
*/
function update_attached_file( $attachment_id, $file ) {
if ( !get_post( $attachment_id ) )
return false;
/**
* Filter the path to the attached file to update.
*
* @since 2.1.0
*
* @param string $file Path to the attached file to update.
* @param int $attachment_id Attachment ID.
*/
$file = apply_filters( 'update_attached_file', $file, $attachment_id );
if ( $file = _wp_relative_upload_path( $file ) )
return update_post_meta( $attachment_id, '_wp_attached_file', $file );
else
return delete_post_meta( $attachment_id, '_wp_attached_file' );
}
/**
* Return relative path to an uploaded file.
*
* The path is relative to the current upload dir.
*
* @since 2.9.0
*
* @param string $path Full path to the file.
* @return string Relative path on success, unchanged path on failure.
*/
function _wp_relative_upload_path( $path ) {
$new_path = $path;
$uploads = wp_upload_dir();
if ( 0 === strpos( $new_path, $uploads['basedir'] ) ) {
$new_path = str_replace( $uploads['basedir'], '', $new_path );
$new_path = ltrim( $new_path, '/' );
}
/**
* Filter the relative path to an uploaded file.
*
* @since 2.9.0
*
* @param string $new_path Relative path to the file.
* @param string $path Full path to the file.
*/
return apply_filters( '_wp_relative_upload_path', $new_path, $path );
}
/**
* Retrieve all children of the post parent ID.
*
* Normally, without any enhancements, the children would apply to pages. In the
* context of the inner workings of WordPress, pages, posts, and attachments
* share the same table, so therefore the functionality could apply to any one
* of them. It is then noted that while this function does not work on posts, it
* does not mean that it won't work on posts. It is recommended that you know
* what context you wish to retrieve the children of.
*
* Attachments may also be made the child of a post, so if that is an accurate
* statement (which needs to be verified), it would then be possible to get
* all of the attachments for a post. Attachments have since changed since
* version 2.5, so this is most likely unaccurate, but serves generally as an
* example of what is possible.
*
* The arguments listed as defaults are for this function and also of the
* {@link get_posts()} function. The arguments are combined with the
* get_children defaults and are then passed to the {@link get_posts()}
* function, which accepts additional arguments. You can replace the defaults in
* this function, listed below and the additional arguments listed in the
* {@link get_posts()} function.
*
* The 'post_parent' is the most important argument and important attention
* needs to be paid to the $args parameter. If you pass either an object or an
* integer (number), then just the 'post_parent' is grabbed and everything else
* is lost. If you don't specify any arguments, then it is assumed that you are
* in The Loop and the post parent will be grabbed for from the current post.
*
* The 'post_parent' argument is the ID to get the children. The 'numberposts'
* is the amount of posts to retrieve that has a default of '-1', which is
* used to get all of the posts. Giving a number higher than 0 will only
* retrieve that amount of posts.
*
* The 'post_type' and 'post_status' arguments can be used to choose what
* criteria of posts to retrieve. The 'post_type' can be anything, but WordPress
* post types are 'post', 'pages', and 'attachments'. The 'post_status'
* argument will accept any post status within the write administration panels.
*
* @since 2.0.0
*
* @see get_posts()
* @todo Check validity of description.
*
* @param mixed $args Optional. User defined arguments for replacing the defaults. Default empty.
* @param string $output Optional. Constant for return type. Accepts OBJECT, ARRAY_A, ARRAY_N.
* Default OBJECt.
* @return array Array of children, where the type of each element is determined by $output parameter.
* Empty array on failure.
*/
function get_children( $args = '', $output = OBJECT ) {
$kids = array();
if ( empty( $args ) ) {
if ( isset( $GLOBALS['post'] ) ) {
$args = array('post_parent' => (int) $GLOBALS['post']->post_parent );
} else {
return $kids;
}
} elseif ( is_object( $args ) ) {
$args = array('post_parent' => (int) $args->post_parent );
} elseif ( is_numeric( $args ) ) {
$args = array('post_parent' => (int) $args);
}
$defaults = array(
'numberposts' => -1, 'post_type' => 'any',
'post_status' => 'any', 'post_parent' => 0,
);
$r = wp_parse_args( $args, $defaults );
$children = get_posts( $r );
if ( ! $children )
return $kids;
if ( ! empty( $r['fields'] ) )
return $children;
update_post_cache($children);
foreach ( $children as $key => $child )
$kids[$child->ID] = $children[$key];
if ( $output == OBJECT ) {
return $kids;
} elseif ( $output == ARRAY_A ) {
$weeuns = array();
foreach ( (array) $kids as $kid ) {
$weeuns[$kid->ID] = get_object_vars($kids[$kid->ID]);
}
return $weeuns;
} elseif ( $output == ARRAY_N ) {
$babes = array();
foreach ( (array) $kids as $kid ) {
$babes[$kid->ID] = array_values(get_object_vars($kids[$kid->ID]));
}
return $babes;
} else {
return $kids;
}
}
/**
* Get extended entry info (<!--more-->).
*
* There should not be any space after the second dash and before the word
* 'more'. There can be text or space(s) after the word 'more', but won't be
* referenced.
*
* The returned array has 'main', 'extended', and 'more_text' keys. Main has the text before
* the `<!--more-->`. The 'extended' key has the content after the
* `<!--more-->` comment. The 'more_text' key has the custom "Read More" text.
*
* @since 1.0.0
*
* @param string $post Post content.
* @return array Post before ('main'), after ('extended'), and custom readmore ('more_text').
*/
function get_extended( $post ) {
//Match the new style more links.
if ( preg_match('/<!--more(.*?)?-->/', $post, $matches) ) {
list($main, $extended) = explode($matches[0], $post, 2);
$more_text = $matches[1];
} else {
$main = $post;
$extended = '';
$more_text = '';
}
// leading and trailing whitespace.
$main = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $main);
$extended = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $extended);
$more_text = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $more_text);
return array( 'main' => $main, 'extended' => $extended, 'more_text' => $more_text );
}
/**
* Retrieves post data given a post ID or post object.
*
* See {@link sanitize_post()} for optional $filter values. Also, the parameter
* $post, must be given as a variable, since it is passed by reference.
*
* @since 1.5.1
*
* @param int|WP_Post $post Optional. Post ID or post object. Defaults to global $post.
* @param string $output Optional, default is Object. Accepts OBJECT, ARRAY_A, or ARRAY_N.
* Default OBJECT.
* @param string $filter Optional. Type of filter to apply. Accepts 'raw', 'edit', 'db',
* or 'display'. Default 'raw'.
* @return WP_Post|array|null Type corresponding to $output on success or null on failure.
* When $output is OBJECT, a `WP_Post` instance is returned.
*/
function get_post( $post = null, $output = OBJECT, $filter = 'raw' ) {
if ( empty( $post ) && isset( $GLOBALS['post'] ) )
$post = $GLOBALS['post'];
if ( $post instanceof WP_Post ) {
$_post = $post;
} elseif ( is_object( $post ) ) {
if ( empty( $post->filter ) ) {
$_post = sanitize_post( $post, 'raw' );
$_post = new WP_Post( $_post );
} elseif ( 'raw' == $post->filter ) {
$_post = new WP_Post( $post );
} else {
$_post = WP_Post::get_instance( $post->ID );
}
} else {
$_post = WP_Post::get_instance( $post );
}
if ( ! $_post )
return null;
$_post = $_post->filter( $filter );
if ( $output == ARRAY_A )
return $_post->to_array();
elseif ( $output == ARRAY_N )
return array_values( $_post->to_array() );
return $_post;
}
/**
* WordPress Post class.
*
* @since 3.5.0
*
* @property-read array $ancestors
* @property-read string $page_template
* @property-read int $post_category
* @property-read string $tag_input
*
*/
final class WP_Post {
/**
* Post ID.
*
* @var int
*/
public $ID;
/**
* ID of post author.
*
* A numeric string, for compatibility reasons.
*
* @var string
*/
public $post_author = 0;
/**
* The post's local publication time.
*
* @var string
*/
public $post_date = '0000-00-00 00:00:00';
/**
* The post's GMT publication time.
*
* @var string
*/
public $post_date_gmt = '0000-00-00 00:00:00';
/**
* The post's content.
*
* @var string
*/
public $post_content = '';
/**
* The post's title.
*
* @var string
*/
public $post_title = '';
/**
* The post's excerpt.
*
* @var string
*/
public $post_excerpt = '';
/**
* The post's status.
*
* @var string
*/
public $post_status = 'publish';
/**
* Whether comments are allowed.
*
* @var string
*/
public $comment_status = 'open';
/**
* Whether pings are allowed.
*
* @var string
*/
public $ping_status = 'open';
/**
* The post's password in plain text.
*
* @var string
*/
public $post_password = '';
/**
* The post's slug.
*
* @var string
*/
public $post_name = '';
/**
* URLs queued to be pinged.
*
* @var string
*/
public $to_ping = '';
/**
* URLs that have been pinged.
*
* @var string
*/
public $pinged = '';
/**
* The post's local modified time.
*
* @var string
*/
public $post_modified = '0000-00-00 00:00:00';
/**
* The post's GMT modified time.
*
* @var string
*/
public $post_modified_gmt = '0000-00-00 00:00:00';
/**
* A utility DB field for post content.
*
*
* @var string
*/
public $post_content_filtered = '';
/**
* ID of a post's parent post.
*
* @var int
*/
public $post_parent = 0;
/**
* The unique identifier for a post, not necessarily a URL, used as the feed GUID.
*
* @var string
*/
public $guid = '';
/**
* A field used for ordering posts.
*
* @var int
*/
public $menu_order = 0;
/**
* The post's type, like post or page.
*
* @var string
*/
public $post_type = 'post';
/**
* An attachment's mime type.
*
* @var string
*/
public $post_mime_type = '';
/**
* Cached comment count.
*
* A numeric string, for compatibility reasons.
*
* @var string
*/
public $comment_count = 0;
/**
* Stores the post object's sanitization level.
*
* Does not correspond to a DB field.
*
* @var string
*/
public $filter;
/**
* Retrieve WP_Post instance.
*
* @static
* @access public
*
* @param int $post_id Post ID.
* @return WP_Post|bool Post object, false otherwise.
*/
public static function get_instance( $post_id ) {
global $wpdb;
$post_id = (int) $post_id;
if ( ! $post_id )
return false;
$_post = wp_cache_get( $post_id, 'posts' );
if ( ! $_post ) {
$_post = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post_id ) );
if ( ! $_post )
return false;
$_post = sanitize_post( $_post, 'raw' );
wp_cache_add( $_post->ID, $_post, 'posts' );
} elseif ( empty( $_post->filter ) ) {
$_post = sanitize_post( $_post, 'raw' );
}
return new WP_Post( $_post );
}
/**
* Constructor.
*
* @param WP_Post $post Post object.
*/
public function __construct( $post ) {
foreach ( get_object_vars( $post ) as $key => $value )
$this->$key = $value;
}
/**
* Isset-er.
*
* @param string $key Property to check if set.
* @return bool
*/
public function __isset( $key ) {
if ( 'ancestors' == $key )
return true;
if ( 'page_template' == $key )
return ( 'page' == $this->post_type );
if ( 'post_category' == $key )
return true;
if ( 'tags_input' == $key )
return true;
return metadata_exists( 'post', $this->ID, $key );
}
/**
* Getter.
*
* @param string $key Key to get.
* @return array|mixed
*/
public function __get( $key ) {
if ( 'page_template' == $key && $this->__isset( $key ) ) {
return get_post_meta( $this->ID, '_wp_page_template', true );
}
if ( 'post_category' == $key ) {
if ( is_object_in_taxonomy( $this->post_type, 'category' ) )
$terms = get_the_terms( $this, 'category' );
if ( empty( $terms ) )
return array();
return wp_list_pluck( $terms, 'term_id' );
}
if ( 'tags_input' == $key ) {
if ( is_object_in_taxonomy( $this->post_type, 'post_tag' ) )
$terms = get_the_terms( $this, 'post_tag' );
if ( empty( $terms ) )
return array();
return wp_list_pluck( $terms, 'name' );
}
// Rest of the values need filtering.
if ( 'ancestors' == $key )
$value = get_post_ancestors( $this );
else
$value = get_post_meta( $this->ID, $key, true );
if ( $this->filter )
$value = sanitize_post_field( $key, $value, $this->ID, $this->filter );
return $value;
}
/**
* {@Missing Summary}
*
* @param string $filter Filter.
* @return $this|array|bool|object|WP_Post
*/
public function filter( $filter ) {
if ( $this->filter == $filter )
return $this;
if ( $filter == 'raw' )
return self::get_instance( $this->ID );
return sanitize_post( $this, $filter );
}
/**
* Convert object to array.
*
* @return array Object as array.
*/
public function to_array() {
$post = get_object_vars( $this );
foreach ( array( 'ancestors', 'page_template', 'post_category', 'tags_input' ) as $key ) {
if ( $this->__isset( $key ) )
$post[ $key ] = $this->__get( $key );
}
return $post;
}
}
/**
* Retrieve ancestors of a post.
*
* @since 2.5.0
*
* @param int|WP_Post $post Post ID or post object.
* @return array Ancestor IDs or empty array if none are found.
*/
function get_post_ancestors( $post ) {
$post = get_post( $post );
if ( ! $post || empty( $post->post_parent ) || $post->post_parent == $post->ID )
return array();
$ancestors = array();
$id = $ancestors[] = $post->post_parent;
while ( $ancestor = get_post( $id ) ) {
// Loop detection: If the ancestor has been seen before, break.
if ( empty( $ancestor->post_parent ) || ( $ancestor->post_parent == $post->ID ) || in_array( $ancestor->post_parent, $ancestors ) )
break;
$id = $ancestors[] = $ancestor->post_parent;
}
return $ancestors;
}
/**
* Retrieve data from a post field based on Post ID.
*
* Examples of the post field will be, 'post_type', 'post_status', 'post_content',
* etc and based off of the post object property or key names.
*
* The context values are based off of the taxonomy filter functions and
* supported values are found within those functions.
*
* @since 2.3.0
*
* @see sanitize_post_field()
*
* @param string $field Post field name.
* @param int|WP_Post $post Post ID or post object.
* @param string $context Optional. How to filter the field. Accepts 'raw', 'edit', 'db',
* or 'display'. Default 'display'.
* @return string The value of the post field on success, empty string on failure.
*/
function get_post_field( $field, $post, $context = 'display' ) {
$post = get_post( $post );
if ( !$post )
return '';
if ( !isset($post->$field) )
return '';
return sanitize_post_field($field, $post->$field, $post->ID, $context);
}
/**
* Retrieve the mime type of an attachment based on the ID.
*
* This function can be used with any post type, but it makes more sense with
* attachments.
*
* @since 2.0.0
*
* @param int|WP_Post $ID Optional. Post ID or post object. Default empty.
* @return string|false The mime type on success, false on failure.
*/
function get_post_mime_type( $ID = '' ) {
$post = get_post($ID);
if ( is_object($post) )
return $post->post_mime_type;
return false;
}
/**
* Retrieve the post status based on the Post ID.
*
* If the post ID is of an attachment, then the parent post status will be given
* instead.
*
* @since 2.0.0
*
* @param int|WP_Post $ID Optional. Post ID or post object. Default empty.
* @return string|false Post status on success, false on failure.
*/
function get_post_status( $ID = '' ) {
$post = get_post($ID);
if ( !is_object($post) )
return false;
if ( 'attachment' == $post->post_type ) {
if ( 'private' == $post->post_status )
return 'private';
// Unattached attachments are assumed to be published.
if ( ( 'inherit' == $post->post_status ) && ( 0 == $post->post_parent) )
return 'publish';
// Inherit status from the parent.
if ( $post->post_parent && ( $post->ID != $post->post_parent ) ) {
$parent_post_status = get_post_status( $post->post_parent );
if ( 'trash' == $parent_post_status ) {
return get_post_meta( $post->post_parent, '_wp_trash_meta_status', true );
} else {
return $parent_post_status;
}
}
}
return $post->post_status;
}
/**
* Retrieve all of the WordPress supported post statuses.
*
* Posts have a limited set of valid status values, this provides the
* post_status values and descriptions.
*
* @since 2.5.0
*
* @return array List of post statuses.
*/
function get_post_statuses() {
$status = array(
'draft' => __( 'Draft' ),
'pending' => __( 'Pending Review' ),
'private' => __( 'Private' ),
'publish' => __( 'Published' )
);
return $status;
}
/**
* Retrieve all of the WordPress support page statuses.
*
* Pages have a limited set of valid status values, this provides the
* post_status values and descriptions.
*
* @since 2.5.0
*
* @return array List of page statuses.
*/
function get_page_statuses() {
$status = array(
'draft' => __( 'Draft' ),
'private' => __( 'Private' ),
'publish' => __( 'Published' )
);
return $status;
}
/**
* Register a post status. Do not use before init.
*
* A simple function for creating or modifying a post status based on the
* parameters given. The function will accept an array (second optional
* parameter), along with a string for the post status name.
*
* Arguments prefixed with an _underscore shouldn't be used by plugins and themes.
*
* @since 3.0.0
* @uses $wp_post_statuses Inserts new post status object into the list
*
* @param string $post_status Name of the post status.
* @param array|string $args {
* Optional. Array or string of post status arguments.
*
* @type bool|string $label A descriptive name for the post status marked
* for translation. Defaults to value of $post_status.
* @type bool|array $label_count Descriptive text to use for nooped plurals.
* Default array of $label, twice
* @type bool $exclude_from_search Whether to exclude posts with this post status
* from search results. Default is value of $internal.
* @type bool $_builtin Whether the status is built-in. Core-use only.
* Default false.
* @type bool $public Whether posts of this status should be shown
* in the front end of the site. Default true.
* @type bool $internal Whether the status is for internal use only.
* Default false.
* @type bool $protected Whether posts with this status should be protected.
* Default false.
* @type bool $private Whether posts with this status should be private.
* Default false.
* @type bool $publicly_queryable Whether posts with this status should be publicly-
* queryable. Default is value of $public.
* @type bool $show_in_admin_all_list Whether to include posts in the edit listing for
* their post type. Default is value of $internal.
* @type bool $show_in_admin_status_list Show in the list of statuses with post counts at
* the top of the edit listings,
* e.g. All (12) | Published (9) | My Custom Status (2)
* Default is value of $internal.
* }
*/
function register_post_status( $post_status, $args = array() ) {
global $wp_post_statuses;
if (!is_array($wp_post_statuses))
$wp_post_statuses = array();
// Args prefixed with an underscore are reserved for internal use.
$defaults = array(
'label' => false,
'label_count' => false,
'exclude_from_search' => null,
'_builtin' => false,
'public' => null,
'internal' => null,
'protected' => null,
'private' => null,
'publicly_queryable' => null,
'show_in_admin_status_list' => null,
'show_in_admin_all_list' => null,
);
$args = wp_parse_args($args, $defaults);
$args = (object) $args;
$post_status = sanitize_key($post_status);
$args->name = $post_status;
// Set various defaults.
if ( null === $args->public && null === $args->internal && null === $args->protected && null === $args->private )
$args->internal = true;
if ( null === $args->public )
$args->public = false;
if ( null === $args->private )
$args->private = false;
if ( null === $args->protected )
$args->protected = false;
if ( null === $args->internal )
$args->internal = false;
if ( null === $args->publicly_queryable )
$args->publicly_queryable = $args->public;
if ( null === $args->exclude_from_search )
$args->exclude_from_search = $args->internal;
if ( null === $args->show_in_admin_all_list )
$args->show_in_admin_all_list = !$args->internal;
if ( null === $args->show_in_admin_status_list )
$args->show_in_admin_status_list = !$args->internal;
if ( false === $args->label )
$args->label = $post_status;
if ( false === $args->label_count )
$args->label_count = array( $args->label, $args->label );
$wp_post_statuses[$post_status] = $args;
return $args;
}
/**
* Retrieve a post status object by name.
*
* @since 3.0.0
*
* @global array $wp_post_statuses List of post statuses.
*
* @see register_post_status()
*
* @param string $post_status The name of a registered post status.
* @return object A post status object.
*/
function get_post_status_object( $post_status ) {
global $wp_post_statuses;
if ( empty($wp_post_statuses[$post_status]) )
return null;
return $wp_post_statuses[$post_status];
}
/**
* Get a list of post statuses.
*
* @since 3.0.0
*
* @global array $wp_post_statuses List of post statuses.
*
* @see register_post_status()
*
* @param array|string $args Optional. Array or string of post status arguments to compare against
* properties of the global `$wp_post_statuses objects`. Default empty array.
* @param string $output Optional. The type of output to return, either 'names' or 'objects'. Default 'names'.
* @param string $operator Optional. The logical operation to perform. 'or' means only one element
* from the array needs to match; 'and' means all elements must match.
* Default 'and'.
* @return array A list of post status names or objects.
*/
function get_post_stati( $args = array(), $output = 'names', $operator = 'and' ) {
global $wp_post_statuses;
$field = ('names' == $output) ? 'name' : false;
return wp_filter_object_list($wp_post_statuses, $args, $operator, $field);
}
/**
* Whether the post type is hierarchical.
*
* A false return value might also mean that the post type does not exist.
*
* @since 3.0.0
*
* @see get_post_type_object()
*
* @param string $post_type Post type name
* @return bool Whether post type is hierarchical.
*/
function is_post_type_hierarchical( $post_type ) {
if ( ! post_type_exists( $post_type ) )
return false;
$post_type = get_post_type_object( $post_type );
return $post_type->hierarchical;
}
/**
* Check if a post type is registered.
*
* @since 3.0.0
*
* @see get_post_type_object()
*
* @param string $post_type Post type name.
* @return bool Whether post type is registered.
*/
function post_type_exists( $post_type ) {
return (bool) get_post_type_object( $post_type );
}
/**
* Retrieve the post type of the current post or of a given post.
*
* @since 2.1.0
*
* @param int|WP_Post $post Optional. Post ID or post object. Default is global $post.
* @return string|false Post type on success, false on failure.
*/
function get_post_type( $post = null ) {
if ( $post = get_post( $post ) )
return $post->post_type;
return false;
}
/**
* Retrieve a post type object by name.
*
* @since 3.0.0
*
* @global array $wp_post_types List of post types.
*
* @see register_post_type()
*
* @param string $post_type The name of a registered post type.
* @return object A post type object.
*/
function get_post_type_object( $post_type ) {
global $wp_post_types;
if ( empty($wp_post_types[$post_type]) )
return null;
return $wp_post_types[$post_type];
}
/**
* Get a list of all registered post type objects.
*
* @since 2.9.0
*
* @global array $wp_post_types List of post types.
*
* @see register_post_type() for accepted arguments.
*
* @param array|string $args Optional. An array of key => value arguments to match against
* the post type objects. Default empty array.
* @param string $output Optional. The type of output to return. Accepts post type 'names'
* or 'objects'. Default 'names'.
* @param string $operator Optional. The logical operation to perform. 'or' means only one
* element from the array needs to match; 'and' means all elements
* must match. Accepts 'or' or 'and'. Default 'and'.
* @return array A list of post type names or objects.
*/
function get_post_types( $args = array(), $output = 'names', $operator = 'and' ) {
global $wp_post_types;
$field = ('names' == $output) ? 'name' : false;
return wp_filter_object_list($wp_post_types, $args, $operator, $field);
}
/**
* Register a post type. Do not use before init.
*
* A function for creating or modifying a post type based on the
* parameters given. The function will accept an array (second optional
* parameter), along with a string for the post type name.
*
* @since 2.9.0
*
* @global array $wp_post_types List of post types.
* @global WP_Rewrite $wp_rewrite Used for default feeds.
* @global WP $wp Used to add query vars.
*
* @param string $post_type Post type key, must not exceed 20 characters.
* @param array|string $args {
* Array or string of arguments for registering a post type.
*
* @type string $label Name of the post type shown in the menu. Usually plural.
* Default is value of $labels['name'].
* @type array $labels An array of labels for this post type. If not set, post
* labels are inherited for non-hierarchical types and page
* labels for hierarchical ones. {@see get_post_type_labels()}.
* @type string $description A short descriptive summary of what the post type is.
* Default empty.
* @type bool $public Whether a post type is intended for use publicly either via
* the admin interface or by front-end users. While the default
* settings of $exclude_from_search, $publicly_queryable, $show_ui,
* and $show_in_nav_menus are inherited from public, each does not
* rely on this relationship and controls a very specific intention.
* Default false.
* @type bool $hierarchical Whether the post type is hierarchical (e.g. page). Default false.
* @type bool $exclude_from_search Whether to exclude posts with this post type from front end search
* results. Default is the opposite value of $public.
* @type bool $publicly_queryable Whether queries can be performed on the front end for the post type
* as part of {@see parse_request()}. Endpoints would include:
* * ?post_type={post_type_key}
* * ?{post_type_key}={single_post_slug}
* * ?{post_type_query_var}={single_post_slug}
* If not set, the default is inherited from $public.
* @type bool $show_ui Whether to generate a default UI for managing this post type in the
* admin. Default is value of $public.
* @type bool $show_in_menu Where to show the post type in the admin menu. To work, $show_ui
* must be true. If true, the post type is shown in its own top level
* menu. If false, no menu is shown. If a string of an existing top
* level menu (eg. 'tools.php' or 'edit.php?post_type=page'), the post
* type will be placed as a sub-menu of that.
* Default is value of $show_ui.
* @type bool $show_in_nav_menus Makes this post type available for selection in navigation menus.
* Default is value $public.
* @type bool $show_in_admin_bar Makes this post type available via the admin bar. Default is value
* of $show_in_menu.
* @type int $menu_position The position in the menu order the post type should appear. To work,
* $show_in_menu must be true. Default null (at the bottom).
* @type string $menu_icon The url to the icon to be used for this menu. Pass a base64-encoded
* SVG using a data URI, which will be colored to match the color scheme
* -- this should begin with 'data:image/svg+xml;base64,'. Pass the name
* of a Dashicons helper class to use a font icon, e.g.
* 'dashicons-chart-pie'. Pass 'none' to leave div.wp-menu-image empty
* so an icon can be added via CSS. Defaults to use the posts icon.
* @type string $capability_type The string to use to build the read, edit, and delete capabilities.
* May be passed as an array to allow for alternative plurals when using
* this argument as a base to construct the capabilities, e.g.
* array('story', 'stories'). Default 'post'.
* @type array $capabilities Array of capabilities for this post type. $capability_type is used
* as a base to construct capabilities by default.
* {@see get_post_type_capabilities()}.
* @type bool $map_meta_cap Whether to use the internal default meta capability handling.
* Default false.
* @type array $supports An alias for calling {@see add_post_type_support()} directly.
* Defaults to array containing 'title' & 'editor'.
* @type callback $register_meta_box_cb Provide a callback function that sets up the meta boxes for the
* edit form. Do remove_meta_box() and add_meta_box() calls in the
* callback. Default null.
* @type array $taxonomies An array of taxonomy identifiers that will be registered for the
* post type. Taxonomies can be registered later with
* {@see register_taxonomy()} or {@see register_taxonomy_for_object_type()}.
* Default empty array.
* @type bool|string $has_archive Whether there should be post type archives, or if a string, the
* archive slug to use. Will generate the proper rewrite rules if
* $rewrite is enabled. Default false.
* @type bool|array $rewrite {
* Triggers the handling of rewrites for this post type. To prevent rewrite, set to false.
* Defaults to true, using $post_type as slug. To specify rewrite rules, an array can be
* passed with any of these keys:
*
* @type string $slug Customize the permastruct slug. Defaults to $post_type key.
* @type bool $with_front Whether the permastruct should be prepended with WP_Rewrite::$front.
* Default true.
* @type bool $feeds Whether the feed permastruct should be built for this post type.
* Default is value of $has_archive.
* @type bool $pages Whether the permastruct should provide for pagination. Default true.
* @type const $ep_mask Endpoint mask to assign. If not specified and permalink_epmask is set,
* inherits from $permalink_epmask. If not specified and permalink_epmask
* is not set, defaults to EP_PERMALINK.
* }
* @type string|bool $query_var Sets the query_var key for this post type. Defaults to $post_type
* key. If false, a post type cannot be loaded at
* ?{query_var}={post_slug}. If specified as a string, the query
* ?{query_var_string}={post_slug} will be valid.
* @type bool $can_export Whether to allow this post type to be exported. Default true.
* @type bool $delete_with_user Whether to delete posts of this type when deleting a user. If true,
* posts of this type belonging to the user will be moved to trash
* when then user is deleted. If false, posts of this type belonging
* to the user will *not* be trashed or deleted. If not set (the default),
* posts are trashed if post_type_supports('author'). Otherwise posts
* are not trashed or deleted. Default null.
* @type bool $_builtin FOR INTERNAL USE ONLY! True if this post type is a native or
* "built-in" post_type. Default false.
* @type string $_edit_link FOR INTERNAL USE ONLY! URL segment to use for edit link of
* this post type. Default 'post.php?post=%d'.
* }
* @return object|WP_Error The registered post type object, or an error object.
*/
function register_post_type( $post_type, $args = array() ) {
global $wp_post_types, $wp_rewrite, $wp;
if ( ! is_array( $wp_post_types ) )
$wp_post_types = array();
// Args prefixed with an underscore are reserved for internal use.
$defaults = array(
'labels' => array(),
'description' => '',
'public' => false,
'hierarchical' => false,
'exclude_from_search' => null,
'publicly_queryable' => null,
'show_ui' => null,
'show_in_menu' => null,
'show_in_nav_menus' => null,
'show_in_admin_bar' => null,
'menu_position' => null,
'menu_icon' => null,
'capability_type' => 'post',
'capabilities' => array(),
'map_meta_cap' => null,
'supports' => array(),
'register_meta_box_cb' => null,
'taxonomies' => array(),
'has_archive' => false,
'rewrite' => true,
'query_var' => true,
'can_export' => true,
'delete_with_user' => null,
'_builtin' => false,
'_edit_link' => 'post.php?post=%d',
);
$args = wp_parse_args( $args, $defaults );
$args = (object) $args;
$post_type = sanitize_key( $post_type );
$args->name = $post_type;
if ( empty( $post_type ) || strlen( $post_type ) > 20 ) {
_doing_it_wrong( __FUNCTION__, __( 'Post type names must be between 1 and 20 characters in length.' ), '4.2' );
return new WP_Error( 'post_type_length_invalid', __( 'Post type names must be between 1 and 20 characters in length.' ) );
}
// If not set, default to the setting for public.
if ( null === $args->publicly_queryable )
$args->publicly_queryable = $args->public;
// If not set, default to the setting for public.
if ( null === $args->show_ui )
$args->show_ui = $args->public;
// If not set, default to the setting for show_ui.
if ( null === $args->show_in_menu || ! $args->show_ui )
$args->show_in_menu = $args->show_ui;
// If not set, default to the whether the full UI is shown.
if ( null === $args->show_in_admin_bar )
$args->show_in_admin_bar = (bool) $args->show_in_menu;
// If not set, default to the setting for public.
if ( null === $args->show_in_nav_menus )
$args->show_in_nav_menus = $args->public;
// If not set, default to true if not public, false if public.
if ( null === $args->exclude_from_search )
$args->exclude_from_search = !$args->public;
// Back compat with quirky handling in version 3.0. #14122.
if ( empty( $args->capabilities ) && null === $args->map_meta_cap && in_array( $args->capability_type, array( 'post', 'page' ) ) )
$args->map_meta_cap = true;
// If not set, default to false.
if ( null === $args->map_meta_cap )
$args->map_meta_cap = false;
$args->cap = get_post_type_capabilities( $args );
unset( $args->capabilities );
if ( is_array( $args->capability_type ) )
$args->capability_type = $args->capability_type[0];
if ( ! empty( $args->supports ) ) {
add_post_type_support( $post_type, $args->supports );
unset( $args->supports );
} elseif ( false !== $args->supports ) {
// Add default features
add_post_type_support( $post_type, array( 'title', 'editor' ) );
}
if ( false !== $args->query_var && ! empty( $wp ) ) {
if ( true === $args->query_var )
$args->query_var = $post_type;
else
$args->query_var = sanitize_title_with_dashes( $args->query_var );
$wp->add_query_var( $args->query_var );
}
if ( false !== $args->rewrite && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
if ( ! is_array( $args->rewrite ) )
$args->rewrite = array();
if ( empty( $args->rewrite['slug'] ) )
$args->rewrite['slug'] = $post_type;
if ( ! isset( $args->rewrite['with_front'] ) )
$args->rewrite['with_front'] = true;
if ( ! isset( $args->rewrite['pages'] ) )
$args->rewrite['pages'] = true;
if ( ! isset( $args->rewrite['feeds'] ) || ! $args->has_archive )
$args->rewrite['feeds'] = (bool) $args->has_archive;
if ( ! isset( $args->rewrite['ep_mask'] ) ) {
if ( isset( $args->permalink_epmask ) )
$args->rewrite['ep_mask'] = $args->permalink_epmask;
else
$args->rewrite['ep_mask'] = EP_PERMALINK;
}
if ( $args->hierarchical )
add_rewrite_tag( "%$post_type%", '(.+?)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&pagename=" );
else
add_rewrite_tag( "%$post_type%", '([^/]+)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&name=" );
if ( $args->has_archive ) {
$archive_slug = $args->has_archive === true ? $args->rewrite['slug'] : $args->has_archive;
if ( $args->rewrite['with_front'] )
$archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug;
else
$archive_slug = $wp_rewrite->root . $archive_slug;
add_rewrite_rule( "{$archive_slug}/?$", "index.php?post_type=$post_type", 'top' );
if ( $args->rewrite['feeds'] && $wp_rewrite->feeds ) {
$feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')';
add_rewrite_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' );
add_rewrite_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' );
}
if ( $args->rewrite['pages'] )
add_rewrite_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$post_type" . '&paged=$matches[1]', 'top' );
}
$permastruct_args = $args->rewrite;
$permastruct_args['feed'] = $permastruct_args['feeds'];
add_permastruct( $post_type, "{$args->rewrite['slug']}/%$post_type%", $permastruct_args );
}
// Register the post type meta box if a custom callback was specified.
if ( $args->register_meta_box_cb )
add_action( 'add_meta_boxes_' . $post_type, $args->register_meta_box_cb, 10, 1 );
$args->labels = get_post_type_labels( $args );
$args->label = $args->labels->name;
$wp_post_types[ $post_type ] = $args;
add_action( 'future_' . $post_type, '_future_post_hook', 5, 2 );
foreach ( $args->taxonomies as $taxonomy ) {
register_taxonomy_for_object_type( $taxonomy, $post_type );
}
/**
* Fires after a post type is registered.
*
* @since 3.3.0
*
* @param string $post_type Post type.
* @param object $args Arguments used to register the post type.
*/
do_action( 'registered_post_type', $post_type, $args );
return $args;
}
/**
* Build an object with all post type capabilities out of a post type object
*
* Post type capabilities use the 'capability_type' argument as a base, if the
* capability is not set in the 'capabilities' argument array or if the
* 'capabilities' argument is not supplied.
*
* The capability_type argument can optionally be registered as an array, with
* the first value being singular and the second plural, e.g. array('story, 'stories')
* Otherwise, an 's' will be added to the value for the plural form. After
* registration, capability_type will always be a string of the singular value.
*
* By default, seven keys are accepted as part of the capabilities array:
*
* - edit_post, read_post, and delete_post are meta capabilities, which are then
* generally mapped to corresponding primitive capabilities depending on the
* context, which would be the post being edited/read/deleted and the user or
* role being checked. Thus these capabilities would generally not be granted
* directly to users or roles.
*
* - edit_posts - Controls whether objects of this post type can be edited.
* - edit_others_posts - Controls whether objects of this type owned by other users
* can be edited. If the post type does not support an author, then this will
* behave like edit_posts.
* - publish_posts - Controls publishing objects of this post type.
* - read_private_posts - Controls whether private objects can be read.
*
* These four primitive capabilities are checked in core in various locations.
* There are also seven other primitive capabilities which are not referenced
* directly in core, except in map_meta_cap(), which takes the three aforementioned
* meta capabilities and translates them into one or more primitive capabilities
* that must then be checked against the user or role, depending on the context.
*
* - read - Controls whether objects of this post type can be read.
* - delete_posts - Controls whether objects of this post type can be deleted.
* - delete_private_posts - Controls whether private objects can be deleted.
* - delete_published_posts - Controls whether published objects can be deleted.
* - delete_others_posts - Controls whether objects owned by other users can be
* can be deleted. If the post type does not support an author, then this will
* behave like delete_posts.
* - edit_private_posts - Controls whether private objects can be edited.
* - edit_published_posts - Controls whether published objects can be edited.
*
* These additional capabilities are only used in map_meta_cap(). Thus, they are
* only assigned by default if the post type is registered with the 'map_meta_cap'
* argument set to true (default is false).
*
* @since 3.0.0
*
* @see register_post_type()
* @see map_meta_cap()
*
* @param object $args Post type registration arguments.
* @return object object with all the capabilities as member variables.
*/
function get_post_type_capabilities( $args ) {
if ( ! is_array( $args->capability_type ) )
$args->capability_type = array( $args->capability_type, $args->capability_type . 's' );
// Singular base for meta capabilities, plural base for primitive capabilities.
list( $singular_base, $plural_base ) = $args->capability_type;
$default_capabilities = array(
// Meta capabilities
'edit_post' => 'edit_' . $singular_base,
'read_post' => 'read_' . $singular_base,
'delete_post' => 'delete_' . $singular_base,
// Primitive capabilities used outside of map_meta_cap():
'edit_posts' => 'edit_' . $plural_base,
'edit_others_posts' => 'edit_others_' . $plural_base,
'publish_posts' => 'publish_' . $plural_base,
'read_private_posts' => 'read_private_' . $plural_base,
);
// Primitive capabilities used within map_meta_cap():
if ( $args->map_meta_cap ) {
$default_capabilities_for_mapping = array(
'read' => 'read',
'delete_posts' => 'delete_' . $plural_base,
'delete_private_posts' => 'delete_private_' . $plural_base,
'delete_published_posts' => 'delete_published_' . $plural_base,
'delete_others_posts' => 'delete_others_' . $plural_base,
'edit_private_posts' => 'edit_private_' . $plural_base,
'edit_published_posts' => 'edit_published_' . $plural_base,
);
$default_capabilities = array_merge( $default_capabilities, $default_capabilities_for_mapping );
}
$capabilities = array_merge( $default_capabilities, $args->capabilities );
// Post creation capability simply maps to edit_posts by default:
if ( ! isset( $capabilities['create_posts'] ) )
$capabilities['create_posts'] = $capabilities['edit_posts'];
// Remember meta capabilities for future reference.
if ( $args->map_meta_cap )
_post_type_meta_capabilities( $capabilities );
return (object) $capabilities;
}
/**
* Store or return a list of post type meta caps for map_meta_cap().
*
* @since 3.1.0
* @access private
*
* @param null|array $capabilities Post type meta capabilities.
*/
function _post_type_meta_capabilities( $capabilities = null ) {
static $meta_caps = array();
if ( null === $capabilities )
return $meta_caps;
foreach ( $capabilities as $core => $custom ) {
if ( in_array( $core, array( 'read_post', 'delete_post', 'edit_post' ) ) )
$meta_caps[ $custom ] = $core;
}
}
/**
* Build an object with all post type labels out of a post type object
*
* Accepted keys of the label array in the post type object:
*
* - name - general name for the post type, usually plural. The same and overridden
* by $post_type_object->label. Default is Posts/Pages
* - singular_name - name for one object of this post type. Default is Post/Page
* - add_new - Default is Add New for both hierarchical and non-hierarchical types.
* When internationalizing this string, please use a gettext context
* {@link https://codex.wordpress.org/I18n_for_WordPress_Developers#Disambiguation_by_context}
* matching your post type. Example: `_x( 'Add New', 'product' );`.
* - add_new_item - Default is Add New Post/Add New Page.
* - edit_item - Default is Edit Post/Edit Page.
* - new_item - Default is New Post/New Page.
* - view_item - Default is View Post/View Page.
* - search_items - Default is Search Posts/Search Pages.
* - not_found - Default is No posts found/No pages found.
* - not_found_in_trash - Default is No posts found in Trash/No pages found in Trash.
* - parent_item_colon - This string isn't used on non-hierarchical types. In hierarchical
* ones the default is 'Parent Page:'.
* - all_items - String for the submenu. Default is All Posts/All Pages.
* - menu_name - Default is the same as `name`.
*
* Above, the first default value is for non-hierarchical post types (like posts)
* and the second one is for hierarchical post types (like pages).
*
* @since 3.0.0
* @access private
*
* @param object $post_type_object Post type object.
* @return object object with all the labels as member variables.
*/
function get_post_type_labels( $post_type_object ) {
$nohier_vs_hier_defaults = array(
'name' => array( _x('Posts', 'post type general name'), _x('Pages', 'post type general name') ),
'singular_name' => array( _x('Post', 'post type singular name'), _x('Page', 'post type singular name') ),
'add_new' => array( _x('Add New', 'post'), _x('Add New', 'page') ),
'add_new_item' => array( __('Add New Post'), __('Add New Page') ),
'edit_item' => array( __('Edit Post'), __('Edit Page') ),
'new_item' => array( __('New Post'), __('New Page') ),
'view_item' => array( __('View Post'), __('View Page') ),
'search_items' => array( __('Search Posts'), __('Search Pages') ),
'not_found' => array( __('No posts found.'), __('No pages found.') ),
'not_found_in_trash' => array( __('No posts found in Trash.'), __('No pages found in Trash.') ),
'parent_item_colon' => array( null, __('Parent Page:') ),
'all_items' => array( __( 'All Posts' ), __( 'All Pages' ) )
);
$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];
$labels = _get_custom_object_labels( $post_type_object, $nohier_vs_hier_defaults );
$post_type = $post_type_object->name;
/**
* Filter the labels of a specific post type.
*
* The dynamic portion of the hook name, `$post_type`, refers to
* the post type slug.
*
* @since 3.5.0
*
* @see get_post_type_labels() for the full list of labels.
*
* @param array $labels Array of labels for the given post type.
*/
return apply_filters( "post_type_labels_{$post_type}", $labels );
}
/**
* Build an object with custom-something object (post type, taxonomy) labels
* out of a custom-something object
*
* @since 3.0.0
* @access private
*
* @param object $object A custom-something object.
* @param array $nohier_vs_hier_defaults Hierarchical vs non-hierarchical default labels.
*/
function _get_custom_object_labels( $object, $nohier_vs_hier_defaults ) {
$object->labels = (array) $object->labels;
if ( isset( $object->label ) && empty( $object->labels['name'] ) )
$object->labels['name'] = $object->label;
if ( !isset( $object->labels['singular_name'] ) && isset( $object->labels['name'] ) )
$object->labels['singular_name'] = $object->labels['name'];
if ( ! isset( $object->labels['name_admin_bar'] ) )
$object->labels['name_admin_bar'] = isset( $object->labels['singular_name'] ) ? $object->labels['singular_name'] : $object->name;
if ( !isset( $object->labels['menu_name'] ) && isset( $object->labels['name'] ) )
$object->labels['menu_name'] = $object->labels['name'];
if ( !isset( $object->labels['all_items'] ) && isset( $object->labels['menu_name'] ) )
$object->labels['all_items'] = $object->labels['menu_name'];
$defaults = array();
foreach ( $nohier_vs_hier_defaults as $key => $value ) {
$defaults[$key] = $object->hierarchical ? $value[1] : $value[0];
}
$labels = array_merge( $defaults, $object->labels );
return (object)$labels;
}
/**
* Add submenus for post types.
*
* @access private
* @since 3.1.0
*/
function _add_post_type_submenus() {
foreach ( get_post_types( array( 'show_ui' => true ) ) as $ptype ) {
$ptype_obj = get_post_type_object( $ptype );
// Sub-menus only.
if ( ! $ptype_obj->show_in_menu || $ptype_obj->show_in_menu === true )
continue;
add_submenu_page( $ptype_obj->show_in_menu, $ptype_obj->labels->name, $ptype_obj->labels->all_items, $ptype_obj->cap->edit_posts, "edit.php?post_type=$ptype" );
}
}
/**
* Register support of certain features for a post type.
*
* All core features are directly associated with a functional area of the edit
* screen, such as the editor or a meta box. Features include: 'title', 'editor',
* 'comments', 'revisions', 'trackbacks', 'author', 'excerpt', 'page-attributes',
* 'thumbnail', 'custom-fields', and 'post-formats'.
*
* Additionally, the 'revisions' feature dictates whether the post type will
* store revisions, and the 'comments' feature dictates whether the comments
* count will show on the edit screen.
*
* @since 3.0.0
*
* @param string $post_type The post type for which to add the feature.
* @param string|array $feature The feature being added, accepts an array of
* feature strings or a single string.
*/
function add_post_type_support( $post_type, $feature ) {
global $_wp_post_type_features;
$features = (array) $feature;
foreach ($features as $feature) {
if ( func_num_args() == 2 )
$_wp_post_type_features[$post_type][$feature] = true;
else
$_wp_post_type_features[$post_type][$feature] = array_slice( func_get_args(), 2 );
}
}
/**
* Remove support for a feature from a post type.
*
* @since 3.0.0
*
* @param string $post_type The post type for which to remove the feature.
* @param string $feature The feature being removed.
*/
function remove_post_type_support( $post_type, $feature ) {
global $_wp_post_type_features;
if ( isset( $_wp_post_type_features[$post_type][$feature] ) )
unset( $_wp_post_type_features[$post_type][$feature] );
}
/**
* Get all the post type features
*
* @since 3.4.0
*
* @param string $post_type The post type.
* @return array Post type supports list.
*/
function get_all_post_type_supports( $post_type ) {
global $_wp_post_type_features;
if ( isset( $_wp_post_type_features[$post_type] ) )
return $_wp_post_type_features[$post_type];
return array();
}
/**
* Check a post type's support for a given feature.
*
* @since 3.0.0
*
* @param string $post_type The post type being checked.
* @param string $feature the feature being checked.
* @return bool Whether the post type supports the given feature.
*/
function post_type_supports( $post_type, $feature ) {
global $_wp_post_type_features;
return ( isset( $_wp_post_type_features[$post_type][$feature] ) );
}
/**
* Update the post type for the post ID.
*
* The page or post cache will be cleaned for the post ID.
*
* @since 2.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $post_id Optional. Post ID to change post type. Default 0.
* @param string $post_type Optional. Post type. Accepts 'post' or 'page' to
* name a few. Default 'post'.
* @return int Amount of rows changed. Should be 1 for success and 0 for failure.
*/
function set_post_type( $post_id = 0, $post_type = 'post' ) {
global $wpdb;
$post_type = sanitize_post_field('post_type', $post_type, $post_id, 'db');
$return = $wpdb->update( $wpdb->posts, array('post_type' => $post_type), array('ID' => $post_id) );
clean_post_cache( $post_id );
return $return;
}
/**
* Retrieve list of latest posts or posts matching criteria.
*
* The defaults are as follows:
*
* @since 1.2.0
*
* @see WP_Query::parse_query()
*
* @param array $args {
* Optional. Arguments to retrieve posts. {@see WP_Query::parse_query()} for more
* available arguments.
*
* @type int $numberposts Total number of posts to retrieve. Is an alias of $posts_per_page
* in WP_Query. Accepts 1+ and -1 for all. Default 5.
* @type int $offset The number of posts to offset before retrieval. Default 0.
* @type int|string $category Category ID or comma-separated list of IDs (this or any children).
* Is an alias of $cat in WP_Query. Default 0.
* @type string $orderby Which field to order posts by. Accepts post fields. Default 'date'.
* @type array $include An array of post IDs to retrieve, sticky posts will be included.
* Is an alias of $post__in in WP_Query. Default empty array.
* @type array $exclude An array of post IDs not to retrieve. Default empty array.
* @type string $meta_key Custom field key. Default empty.
* @type mixed $meta_value Custom field value. Default empty string.
* @type string $post_type Post type. Default 'post'.
* @type bool $suppress_filters Whether to suppress filters. Default true.
* }
* @return array List of posts.
*/
function get_posts( $args = null ) {
$defaults = array(
'numberposts' => 5, 'offset' => 0,
'category' => 0, 'orderby' => 'date',
'order' => 'DESC', 'include' => array(),
'exclude' => array(), 'meta_key' => '',
'meta_value' =>'', 'post_type' => 'post',
'suppress_filters' => true
);
$r = wp_parse_args( $args, $defaults );
if ( empty( $r['post_status'] ) )
$r['post_status'] = ( 'attachment' == $r['post_type'] ) ? 'inherit' : 'publish';
if ( ! empty($r['numberposts']) && empty($r['posts_per_page']) )
$r['posts_per_page'] = $r['numberposts'];
if ( ! empty($r['category']) )
$r['cat'] = $r['category'];
if ( ! empty($r['include']) ) {
$incposts = wp_parse_id_list( $r['include'] );
$r['posts_per_page'] = count($incposts); // only the number of posts included
$r['post__in'] = $incposts;
} elseif ( ! empty($r['exclude']) )
$r['post__not_in'] = wp_parse_id_list( $r['exclude'] );
$r['ignore_sticky_posts'] = true;
$r['no_found_rows'] = true;
$get_posts = new WP_Query;
return $get_posts->query($r);
}
//
// Post meta functions
//
/**
* Add meta data field to a post.
*
* Post meta data is called "Custom Fields" on the Administration Screen.
*
* @since 1.5.0
*
* @param int $post_id Post ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
* @param bool $unique Optional. Whether the same key should not be added.
* Default false.
* @return int|bool Meta ID on success, false on failure.
*/
function add_post_meta( $post_id, $meta_key, $meta_value, $unique = false ) {
// Make sure meta is added to the post, not a revision.
if ( $the_post = wp_is_post_revision($post_id) )
$post_id = $the_post;
return add_metadata('post', $post_id, $meta_key, $meta_value, $unique);
}
/**
* Remove metadata matching criteria from a post.
*
* You can match based on the key, or key and value. Removing based on key and
* value, will keep from removing duplicate metadata with the same key. It also
* allows removing all metadata matching key, if needed.
*
* @since 1.5.0
*
* @param int $post_id Post ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Optional. Metadata value. Must be serializable if
* non-scalar. Default empty.
* @return bool True on success, false on failure.
*/
function delete_post_meta( $post_id, $meta_key, $meta_value = '' ) {
// Make sure meta is added to the post, not a revision.
if ( $the_post = wp_is_post_revision($post_id) )
$post_id = $the_post;
return delete_metadata('post', $post_id, $meta_key, $meta_value);
}
/**
* Retrieve post meta field for a post.
*
* @since 1.5.0
*
* @param int $post_id Post ID.
* @param string $key Optional. The meta key to retrieve. By default, returns
* data for all keys. Default empty.
* @param bool $single Optional. Whether to return a single value. Default false.
* @return mixed Will be an array if $single is false. Will be value of meta data
* field if $single is true.
*/
function get_post_meta( $post_id, $key = '', $single = false ) {
return get_metadata('post', $post_id, $key, $single);
}
/**
* Update post meta field based on post ID.
*
* Use the $prev_value parameter to differentiate between meta fields with the
* same key and post ID.
*
* If the meta field for the post does not exist, it will be added.
*
* @since 1.5.0
*
* @param int $post_id Post ID.
* @param string $meta_key Metadata key.
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
* @param mixed $prev_value Optional. Previous value to check before removing.
* Default empty.
* @return int|bool Meta ID if the key didn't exist, true on successful update,
* false on failure.
*/
function update_post_meta( $post_id, $meta_key, $meta_value, $prev_value = '' ) {
// Make sure meta is added to the post, not a revision.
if ( $the_post = wp_is_post_revision($post_id) )
$post_id = $the_post;
return update_metadata('post', $post_id, $meta_key, $meta_value, $prev_value);
}
/**
* Delete everything from post meta matching meta key.
*
* @since 2.3.0
*
* @param string $post_meta_key Key to search for when deleting.
* @return bool Whether the post meta key was deleted from the database.
*/
function delete_post_meta_by_key( $post_meta_key ) {
return delete_metadata( 'post', null, $post_meta_key, '', true );
}
/**
* Retrieve post meta fields, based on post ID.
*
* The post meta fields are retrieved from the cache where possible,
* so the function is optimized to be called more than once.
*
* @since 1.2.0
*
* @param int $post_id Optional. Post ID. Default is ID of the global $post.
* @return array Post meta for the given post.
*/
function get_post_custom( $post_id = 0 ) {
$post_id = absint( $post_id );
if ( ! $post_id )
$post_id = get_the_ID();
return get_post_meta( $post_id );
}
/**
* Retrieve meta field names for a post.
*
* If there are no meta fields, then nothing (null) will be returned.
*
* @since 1.2.0
*
* @param int $post_id Optional. Post ID. Default is ID of the global $post.
* @return array|null Either array of the keys, or null if keys could not be
* retrieved.
*/
function get_post_custom_keys( $post_id = 0 ) {
$custom = get_post_custom( $post_id );
if ( !is_array($custom) )
return;
if ( $keys = array_keys($custom) )
return $keys;
}
/**
* Retrieve values for a custom post field.
*
* The parameters must not be considered optional. All of the post meta fields
* will be retrieved and only the meta field key values returned.
*
* @since 1.2.0
*
* @param string $key Optional. Meta field key. Default empty.
* @param int $post_id Optional. Post ID. Default is ID of the global $post.
* @return array Meta field values.
*/
function get_post_custom_values( $key = '', $post_id = 0 ) {
if ( !$key )
return null;
$custom = get_post_custom($post_id);
return isset($custom[$key]) ? $custom[$key] : null;
}
/**
* Check if post is sticky.
*
* Sticky posts should remain at the top of The Loop. If the post ID is not
* given, then The Loop ID for the current post will be used.
*
* @since 2.7.0
*
* @param int $post_id Optional. Post ID. Default is ID of the global $post.
* @return bool Whether post is sticky.
*/
function is_sticky( $post_id = 0 ) {
$post_id = absint( $post_id );
if ( ! $post_id )
$post_id = get_the_ID();
$stickies = get_option( 'sticky_posts' );
if ( ! is_array( $stickies ) )
return false;
if ( in_array( $post_id, $stickies ) )
return true;
return false;
}
/**
* Sanitize every post field.
*
* If the context is 'raw', then the post object or array will get minimal
* sanitization of the integer fields.
*
* @since 2.3.0
*
* @see sanitize_post_field()
*
* @param object|WP_Post|array $post The Post Object or Array
* @param string $context Optional. How to sanitize post fields.
* Accepts 'raw', 'edit', 'db', or 'display'.
* Default 'display'.
* @return object|WP_Post|array The now sanitized Post Object or Array (will be the
* same type as $post).
*/
function sanitize_post( $post, $context = 'display' ) {
if ( is_object($post) ) {
// Check if post already filtered for this context.
if ( isset($post->filter) && $context == $post->filter )
return $post;
if ( !isset($post->ID) )
$post->ID = 0;
foreach ( array_keys(get_object_vars($post)) as $field )
$post->$field = sanitize_post_field($field, $post->$field, $post->ID, $context);
$post->filter = $context;
} else {
// Check if post already filtered for this context.
if ( isset($post['filter']) && $context == $post['filter'] )
return $post;
if ( !isset($post['ID']) )
$post['ID'] = 0;
foreach ( array_keys($post) as $field )
$post[$field] = sanitize_post_field($field, $post[$field], $post['ID'], $context);
$post['filter'] = $context;
}
return $post;
}
/**
* Sanitize post field based on context.
*
* Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and
* 'js'. The 'display' context is used by default. 'attribute' and 'js' contexts
* are treated like 'display' when calling filters.
*
* @since 2.3.0
*
* @param string $field The Post Object field name.
* @param mixed $value The Post Object value.
* @param int $post_id Post ID.
* @param string $context How to sanitize post fields. Looks for 'raw', 'edit',
* 'db', 'display', 'attribute' and 'js'.
* @return mixed Sanitized value.
*/
function sanitize_post_field($field, $value, $post_id, $context) {
$int_fields = array('ID', 'post_parent', 'menu_order');
if ( in_array($field, $int_fields) )
$value = (int) $value;
// Fields which contain arrays of integers.
$array_int_fields = array( 'ancestors' );
if ( in_array($field, $array_int_fields) ) {
$value = array_map( 'absint', $value);
return $value;
}
if ( 'raw' == $context )
return $value;
$prefixed = false;
if ( false !== strpos($field, 'post_') ) {
$prefixed = true;
$field_no_prefix = str_replace('post_', '', $field);
}
if ( 'edit' == $context ) {
$format_to_edit = array('post_content', 'post_excerpt', 'post_title', 'post_password');
if ( $prefixed ) {
/**
* Filter the value of a specific post field to edit.
*
* The dynamic portion of the hook name, `$field`, refers to the post
* field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the post field.
* @param int $post_id Post ID.
*/
$value = apply_filters( "edit_{$field}", $value, $post_id );
/**
* Filter the value of a specific post field to edit.
*
* The dynamic portion of the hook name, `$field_no_prefix`, refers to
* the post field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the post field.
* @param int $post_id Post ID.
*/
$value = apply_filters( "{$field_no_prefix}_edit_pre", $value, $post_id );
} else {
$value = apply_filters( "edit_post_{$field}", $value, $post_id );
}
if ( in_array($field, $format_to_edit) ) {
if ( 'post_content' == $field )
$value = format_to_edit($value, user_can_richedit());
else
$value = format_to_edit($value);
} else {
$value = esc_attr($value);
}
} elseif ( 'db' == $context ) {
if ( $prefixed ) {
/**
* Filter the value of a specific post field before saving.
*
* The dynamic portion of the hook name, `$field`, refers to the post
* field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the post field.
*/
$value = apply_filters( "pre_{$field}", $value );
/**
* Filter the value of a specific field before saving.
*
* The dynamic portion of the hook name, `$field_no_prefix`, refers
* to the post field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the post field.
*/
$value = apply_filters( "{$field_no_prefix}_save_pre", $value );
} else {
$value = apply_filters( "pre_post_{$field}", $value );
/**
* Filter the value of a specific post field before saving.
*
* The dynamic portion of the hook name, `$field`, refers to the post
* field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the post field.
*/
$value = apply_filters( "{$field}_pre", $value );
}
} else {
// Use display filters by default.
if ( $prefixed ) {
/**
* Filter the value of a specific post field for display.
*
* The dynamic portion of the hook name, `$field`, refers to the post
* field name.
*
* @since 2.3.0
*
* @param mixed $value Value of the prefixed post field.
* @param int $post_id Post ID.
* @param string $context Context for how to sanitize the field. Possible
* values include 'raw', 'edit', 'db', 'display',
* 'attribute' and 'js'.
*/
$value = apply_filters( $field, $value, $post_id, $context );
} else {
$value = apply_filters( "post_{$field}", $value, $post_id, $context );
}
}
if ( 'attribute' == $context )
$value = esc_attr($value);
elseif ( 'js' == $context )
$value = esc_js($value);
return $value;
}
/**
* Make a post sticky.
*
* Sticky posts should be displayed at the top of the front page.
*
* @since 2.7.0
*
* @param int $post_id Post ID.
*/
function stick_post( $post_id ) {
$stickies = get_option('sticky_posts');
if ( !is_array($stickies) )
$stickies = array($post_id);
if ( ! in_array($post_id, $stickies) )
$stickies[] = $post_id;
update_option('sticky_posts', $stickies);
}
/**
* Un-stick a post.
*
* Sticky posts should be displayed at the top of the front page.
*
* @since 2.7.0
*
* @param int $post_id Post ID.
*/
function unstick_post( $post_id ) {
$stickies = get_option('sticky_posts');
if ( !is_array($stickies) )
return;
if ( ! in_array($post_id, $stickies) )
return;
$offset = array_search($post_id, $stickies);
if ( false === $offset )
return;
array_splice($stickies, $offset, 1);
update_option('sticky_posts', $stickies);
}
/**
* Return the cache key for wp_count_posts() based on the passed arguments.
*
* @since 3.9.0
*
* @param string $type Optional. Post type to retrieve count Default 'post'.
* @param string $perm Optional. 'readable' or empty. Default empty.
* @return string The cache key.
*/
function _count_posts_cache_key( $type = 'post', $perm = '' ) {
$cache_key = 'posts-' . $type;
if ( 'readable' == $perm && is_user_logged_in() ) {
$post_type_object = get_post_type_object( $type );
if ( $post_type_object && ! current_user_can( $post_type_object->cap->read_private_posts ) ) {
$cache_key .= '_' . $perm . '_' . get_current_user_id();
}
}
return $cache_key;
}
/**
* Count number of posts of a post type and if user has permissions to view.
*
* This function provides an efficient method of finding the amount of post's
* type a blog has. Another method is to count the amount of items in
* get_posts(), but that method has a lot of overhead with doing so. Therefore,
* when developing for 2.5+, use this function instead.
*
* The $perm parameter checks for 'readable' value and if the user can read
* private posts, it will display that for the user that is signed in.
*
* @since 2.5.0
*
* @param string $type Optional. Post type to retrieve count. Default 'post'.
* @param string $perm Optional. 'readable' or empty. Default empty.
* @return object Number of posts for each status.
*/
function wp_count_posts( $type = 'post', $perm = '' ) {
global $wpdb;
if ( ! post_type_exists( $type ) )
return new stdClass;
$cache_key = _count_posts_cache_key( $type, $perm );
$counts = wp_cache_get( $cache_key, 'counts' );
if ( false !== $counts ) {
/** This filter is documented in wp-includes/post.php */
return apply_filters( 'wp_count_posts', $counts, $type, $perm );
}
$query = "SELECT post_status, COUNT( * ) AS num_posts FROM {$wpdb->posts} WHERE post_type = %s";
if ( 'readable' == $perm && is_user_logged_in() ) {
$post_type_object = get_post_type_object($type);
if ( ! current_user_can( $post_type_object->cap->read_private_posts ) ) {
$query .= $wpdb->prepare( " AND (post_status != 'private' OR ( post_author = %d AND post_status = 'private' ))",
get_current_user_id()
);
}
}
$query .= ' GROUP BY post_status';
$results = (array) $wpdb->get_results( $wpdb->prepare( $query, $type ), ARRAY_A );
$counts = array_fill_keys( get_post_stati(), 0 );
foreach ( $results as $row ) {
$counts[ $row['post_status'] ] = $row['num_posts'];
}
$counts = (object) $counts;
wp_cache_set( $cache_key, $counts, 'counts' );
/**
* Modify returned post counts by status for the current post type.
*
* @since 3.7.0
*
* @param object $counts An object containing the current post_type's post
* counts by status.
* @param string $type Post type.
* @param string $perm The permission to determine if the posts are 'readable'
* by the current user.
*/
return apply_filters( 'wp_count_posts', $counts, $type, $perm );
}
/**
* Count number of attachments for the mime type(s).
*
* If you set the optional mime_type parameter, then an array will still be
* returned, but will only have the item you are looking for. It does not give
* you the number of attachments that are children of a post. You can get that
* by counting the number of children that post has.
*
* @since 2.5.0
*
* @param string|array $mime_type Optional. Array or comma-separated list of
* MIME patterns. Default empty.
* @return object An object containing the attachment counts by mime type.
*/
function wp_count_attachments( $mime_type = '' ) {
global $wpdb;
$and = wp_post_mime_type_where( $mime_type );
$count = $wpdb->get_results( "SELECT post_mime_type, COUNT( * ) AS num_posts FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' $and GROUP BY post_mime_type", ARRAY_A );
$counts = array();
foreach( (array) $count as $row ) {
$counts[ $row['post_mime_type'] ] = $row['num_posts'];
}
$counts['trash'] = $wpdb->get_var( "SELECT COUNT( * ) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status = 'trash' $and");
/**
* Modify returned attachment counts by mime type.
*
* @since 3.7.0
*
* @param object $counts An object containing the attachment counts by
* mime type.
* @param string $mime_type The mime type pattern used to filter the attachments
* counted.
*/
return apply_filters( 'wp_count_attachments', (object) $counts, $mime_type );
}
/**
* Get default post mime types.
*
* @since 2.9.0
*
* @return array List of post mime types.
*/
function get_post_mime_types() {
$post_mime_types = array( // array( adj, noun )
'image' => array(__('Images'), __('Manage Images'), _n_noop('Image <span class="count">(%s)</span>', 'Images <span class="count">(%s)</span>')),
'audio' => array(__('Audio'), __('Manage Audio'), _n_noop('Audio <span class="count">(%s)</span>', 'Audio <span class="count">(%s)</span>')),
'video' => array(__('Video'), __('Manage Video'), _n_noop('Video <span class="count">(%s)</span>', 'Video <span class="count">(%s)</span>')),
);
/**
* Filter the default list of post mime types.
*
* @since 2.5.0
*
* @param array $post_mime_types Default list of post mime types.
*/
return apply_filters( 'post_mime_types', $post_mime_types );
}
/**
* Check a MIME-Type against a list.
*
* If the wildcard_mime_types parameter is a string, it must be comma separated
* list. If the real_mime_types is a string, it is also comma separated to
* create the list.
*
* @since 2.5.0
*
* @param string|array $wildcard_mime_types Mime types, e.g. audio/mpeg or image (same as image/*)
* or flash (same as *flash*).
* @param string|array $real_mime_types Real post mime type values.
* @return array array(wildcard=>array(real types)).
*/
function wp_match_mime_types( $wildcard_mime_types, $real_mime_types ) {
$matches = array();
if ( is_string( $wildcard_mime_types ) ) {
$wildcard_mime_types = array_map( 'trim', explode( ',', $wildcard_mime_types ) );
}
if ( is_string( $real_mime_types ) ) {
$real_mime_types = array_map( 'trim', explode( ',', $real_mime_types ) );
}
$patternses = array();
$wild = '[-._a-z0-9]*';
foreach ( (array) $wildcard_mime_types as $type ) {
$mimes = array_map( 'trim', explode( ',', $type ) );
foreach ( $mimes as $mime ) {
$regex = str_replace( '__wildcard__', $wild, preg_quote( str_replace( '*', '__wildcard__', $mime ) ) );
$patternses[][$type] = "^$regex$";
if ( false === strpos( $mime, '/' ) ) {
$patternses[][$type] = "^$regex/";
$patternses[][$type] = $regex;
}
}
}
asort( $patternses );
foreach ( $patternses as $patterns ) {
foreach ( $patterns as $type => $pattern ) {
foreach ( (array) $real_mime_types as $real ) {
if ( preg_match( "#$pattern#", $real ) && ( empty( $matches[$type] ) || false === array_search( $real, $matches[$type] ) ) ) {
$matches[$type][] = $real;
}
}
}
}
return $matches;
}
/**
* Convert MIME types into SQL.
*
* @since 2.5.0
*
* @param string|array $post_mime_types List of mime types or comma separated string
* of mime types.
* @param string $table_alias Optional. Specify a table alias, if needed.
* Default empty.
* @return string The SQL AND clause for mime searching.
*/
function wp_post_mime_type_where( $post_mime_types, $table_alias = '' ) {
$where = '';
$wildcards = array('', '%', '%/%');
if ( is_string($post_mime_types) )
$post_mime_types = array_map('trim', explode(',', $post_mime_types));
$wheres = array();
foreach ( (array) $post_mime_types as $mime_type ) {
$mime_type = preg_replace('/\s/', '', $mime_type);
$slashpos = strpos($mime_type, '/');
if ( false !== $slashpos ) {
$mime_group = preg_replace('/[^-*.a-zA-Z0-9]/', '', substr($mime_type, 0, $slashpos));
$mime_subgroup = preg_replace('/[^-*.+a-zA-Z0-9]/', '', substr($mime_type, $slashpos + 1));
if ( empty($mime_subgroup) )
$mime_subgroup = '*';
else
$mime_subgroup = str_replace('/', '', $mime_subgroup);
$mime_pattern = "$mime_group/$mime_subgroup";
} else {
$mime_pattern = preg_replace('/[^-*.a-zA-Z0-9]/', '', $mime_type);
if ( false === strpos($mime_pattern, '*') )
$mime_pattern .= '/*';
}
$mime_pattern = preg_replace('/\*+/', '%', $mime_pattern);
if ( in_array( $mime_type, $wildcards ) )
return '';
if ( false !== strpos($mime_pattern, '%') )
$wheres[] = empty($table_alias) ? "post_mime_type LIKE '$mime_pattern'" : "$table_alias.post_mime_type LIKE '$mime_pattern'";
else
$wheres[] = empty($table_alias) ? "post_mime_type = '$mime_pattern'" : "$table_alias.post_mime_type = '$mime_pattern'";
}
if ( !empty($wheres) )
$where = ' AND (' . join(' OR ', $wheres) . ') ';
return $where;
}
/**
* Trash or delete a post or page.
*
* When the post and page is permanently deleted, everything that is tied to
* it is deleted also. This includes comments, post meta fields, and terms
* associated with the post.
*
* The post or page is moved to trash instead of permanently deleted unless
* trash is disabled, item is already in the trash, or $force_delete is true.
*
* @since 1.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @see wp_delete_attachment()
* @see wp_trash_post()
*
* @param int $postid Optional. Post ID. Default 0.
* @param bool $force_delete Optional. Whether to bypass trash and force deletion.
* Default false.
* @return array|bool|WP_Post False on failure.
*/
function wp_delete_post( $postid = 0, $force_delete = false ) {
global $wpdb;
if ( !$post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $postid)) )
return $post;
if ( !$force_delete && ( $post->post_type == 'post' || $post->post_type == 'page') && get_post_status( $postid ) != 'trash' && EMPTY_TRASH_DAYS )
return wp_trash_post($postid);
if ( $post->post_type == 'attachment' )
return wp_delete_attachment( $postid, $force_delete );
/**
* Fires before a post is deleted, at the start of wp_delete_post().
*
* @since 3.2.0
*
* @see wp_delete_post()
*
* @param int $postid Post ID.
*/
do_action( 'before_delete_post', $postid );
delete_post_meta($postid,'_wp_trash_meta_status');
delete_post_meta($postid,'_wp_trash_meta_time');
wp_delete_object_term_relationships($postid, get_object_taxonomies($post->post_type));
$parent_data = array( 'post_parent' => $post->post_parent );
$parent_where = array( 'post_parent' => $postid );
if ( is_post_type_hierarchical( $post->post_type ) ) {
// Point children of this page to its parent, also clean the cache of affected children.
$children_query = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_parent = %d AND post_type = %s", $postid, $post->post_type );
$children = $wpdb->get_results( $children_query );
$wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => $post->post_type ) );
}
// Do raw query. wp_get_post_revisions() is filtered.
$revision_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_parent = %d AND post_type = 'revision'", $postid ) );
// Use wp_delete_post (via wp_delete_post_revision) again. Ensures any meta/misplaced data gets cleaned up.
foreach ( $revision_ids as $revision_id )
wp_delete_post_revision( $revision_id );
// Point all attachments to this post up one level.
$wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) );
$comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $postid ));
foreach ( $comment_ids as $comment_id )
wp_delete_comment( $comment_id, true );
$post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $postid ));
foreach ( $post_meta_ids as $mid )
delete_metadata_by_mid( 'post', $mid );
/**
* Fires immediately before a post is deleted from the database.
*
* @since 1.2.0
*
* @param int $postid Post ID.
*/
do_action( 'delete_post', $postid );
$result = $wpdb->delete( $wpdb->posts, array( 'ID' => $postid ) );
if ( ! $result ) {
return false;
}
/**
* Fires immediately after a post is deleted from the database.
*
* @since 2.2.0
*
* @param int $postid Post ID.
*/
do_action( 'deleted_post', $postid );
clean_post_cache( $post );
if ( is_post_type_hierarchical( $post->post_type ) && $children ) {
foreach ( $children as $child )
clean_post_cache( $child );
}
wp_clear_scheduled_hook('publish_future_post', array( $postid ) );
/**
* Fires after a post is deleted, at the conclusion of wp_delete_post().
*
* @since 3.2.0
*
* @see wp_delete_post()
*
* @param int $postid Post ID.
*/
do_action( 'after_delete_post', $postid );
return $post;
}
/**
* Reset the page_on_front, show_on_front, and page_for_post settings when
* a linked page is deleted or trashed.
*
* Also ensures the post is no longer sticky.
*
* @since 3.7.0
* @access private
*
* @param int $post_id Post ID.
*/
function _reset_front_page_settings_for_post( $post_id ) {
$post = get_post( $post_id );
if ( 'page' == $post->post_type ) {
/*
* If the page is defined in option page_on_front or post_for_posts,
* adjust the corresponding options.
*/
if ( get_option( 'page_on_front' ) == $post->ID ) {
update_option( 'show_on_front', 'posts' );
update_option( 'page_on_front', 0 );
}
if ( get_option( 'page_for_posts' ) == $post->ID ) {
delete_option( 'page_for_posts', 0 );
}
}
unstick_post( $post->ID );
}
/**
* Move a post or page to the Trash
*
* If trash is disabled, the post or page is permanently deleted.
*
* @since 2.9.0
*
* @see wp_delete_post()
*
* @param int $post_id Optional. Post ID. Default is ID of the global $post
* if EMPTY_TRASH_DAYS equals true.
* @return bool|array Post data array, otherwise false.
*/
function wp_trash_post( $post_id = 0 ) {
if ( !EMPTY_TRASH_DAYS )
return wp_delete_post($post_id, true);
if ( !$post = get_post($post_id, ARRAY_A) )
return $post;
if ( $post['post_status'] == 'trash' )
return false;
/**
* Fires before a post is sent to the trash.
*
* @since 3.3.0
*
* @param int $post_id Post ID.
*/
do_action( 'wp_trash_post', $post_id );
add_post_meta($post_id,'_wp_trash_meta_status', $post['post_status']);
add_post_meta($post_id,'_wp_trash_meta_time', time());
$post['post_status'] = 'trash';
wp_insert_post($post);
wp_trash_post_comments($post_id);
/**
* Fires after a post is sent to the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'trashed_post', $post_id );
return $post;
}
/**
* Restore a post or page from the Trash.
*
* @since 2.9.0
*
* @param int $post_id Optional. Post ID. Default is ID of the global $post.
* @return WP_Post|bool WP_Post object. False on failure.
*/
function wp_untrash_post( $post_id = 0 ) {
if ( !$post = get_post($post_id, ARRAY_A) )
return $post;
if ( $post['post_status'] != 'trash' )
return false;
/**
* Fires before a post is restored from the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'untrash_post', $post_id );
$post_status = get_post_meta($post_id, '_wp_trash_meta_status', true);
$post['post_status'] = $post_status;
delete_post_meta($post_id, '_wp_trash_meta_status');
delete_post_meta($post_id, '_wp_trash_meta_time');
wp_insert_post($post);
wp_untrash_post_comments($post_id);
/**
* Fires after a post is restored from the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'untrashed_post', $post_id );
return $post;
}
/**
* Moves comments for a post to the trash.
*
* @since 2.9.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|WP_Post $post Optional. Post ID or post object. Defaults to global $post.
* @return mixed False on failure.
*/
function wp_trash_post_comments( $post = null ) {
global $wpdb;
$post = get_post($post);
if ( empty($post) )
return;
$post_id = $post->ID;
/**
* Fires before comments are sent to the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'trash_post_comments', $post_id );
$comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_ID, comment_approved FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id) );
if ( empty($comments) )
return;
// Cache current status for each comment.
$statuses = array();
foreach ( $comments as $comment )
$statuses[$comment->comment_ID] = $comment->comment_approved;
add_post_meta($post_id, '_wp_trash_meta_comments_status', $statuses);
// Set status for all comments to post-trashed.
$result = $wpdb->update($wpdb->comments, array('comment_approved' => 'post-trashed'), array('comment_post_ID' => $post_id));
clean_comment_cache( array_keys($statuses) );
/**
* Fires after comments are sent to the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
* @param array $statuses Array of comment statuses.
*/
do_action( 'trashed_post_comments', $post_id, $statuses );
return $result;
}
/**
* Restore comments for a post from the trash.
*
* @since 2.9.0
*
* @param int|WP_Post $post Optional. Post ID or post object. Defaults to global $post.
* @return null|bool Null on failure.
*/
function wp_untrash_post_comments( $post = null ) {
global $wpdb;
$post = get_post($post);
if ( empty($post) )
return;
$post_id = $post->ID;
$statuses = get_post_meta($post_id, '_wp_trash_meta_comments_status', true);
if ( empty($statuses) )
return true;
/**
* Fires before comments are restored for a post from the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'untrash_post_comments', $post_id );
// Restore each comment to its original status.
$group_by_status = array();
foreach ( $statuses as $comment_id => $comment_status )
$group_by_status[$comment_status][] = $comment_id;
foreach ( $group_by_status as $status => $comments ) {
// Sanity check. This shouldn't happen.
if ( 'post-trashed' == $status )
$status = '0';
$comments_in = implode( "', '", $comments );
$wpdb->query( "UPDATE $wpdb->comments SET comment_approved = '$status' WHERE comment_ID IN ('" . $comments_in . "')" );
}
clean_comment_cache( array_keys($statuses) );
delete_post_meta($post_id, '_wp_trash_meta_comments_status');
/**
* Fires after comments are restored for a post from the trash.
*
* @since 2.9.0
*
* @param int $post_id Post ID.
*/
do_action( 'untrashed_post_comments', $post_id );
}
/**
* Retrieve the list of categories for a post.
*
* Compatibility layer for themes and plugins. Also an easy layer of abstraction
* away from the complexity of the taxonomy layer.
*
* @since 2.1.0
*
* @see wp_get_object_terms()
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the
* global $post. Default 0.
* @param array $args Optional. Category arguments. Default empty.
* @return array List of categories.
*/
function wp_get_post_categories( $post_id = 0, $args = array() ) {
$post_id = (int) $post_id;
$defaults = array('fields' => 'ids');
$args = wp_parse_args( $args, $defaults );
$cats = wp_get_object_terms($post_id, 'category', $args);
return $cats;
}
/**
* Retrieve the tags for a post.
*
* There is only one default for this function, called 'fields' and by default
* is set to 'all'. There are other defaults that can be overridden in
* {@link wp_get_object_terms()}.
*
* @since 2.3.0
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the
* global $post. Defualt 0.
* @param array $args Optional. Overwrite the defaults
* @return array List of post tags.
*/
function wp_get_post_tags( $post_id = 0, $args = array() ) {
return wp_get_post_terms( $post_id, 'post_tag', $args);
}
/**
* Retrieve the terms for a post.
*
* There is only one default for this function, called 'fields' and by default
* is set to 'all'. There are other defaults that can be overridden in
* {@link wp_get_object_terms()}.
*
* @since 2.8.0
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the
* global $post. Default 0.
* @param string $taxonomy Optional. The taxonomy for which to retrieve terms. Default 'post_tag'.
* @param array $args Optional. {@link wp_get_object_terms()} arguments. Default empty array.
* @return array List of post tags.
*/
function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) {
$post_id = (int) $post_id;
$defaults = array('fields' => 'all');
$args = wp_parse_args( $args, $defaults );
$tags = wp_get_object_terms($post_id, $taxonomy, $args);
return $tags;
}
/**
* Retrieve a number of recent posts.
*
* @since 1.0.0
*
* @see get_posts()
*
* @param array $args Optional. Arguments to retrieve posts. Default empty array.
* @param string $output Optional. Type of output. Accepts ARRAY_A or ''. Default ARRAY_A.
* @return array|bool Associative array if $output equals ARRAY_A, array or false if no results.
*/
function wp_get_recent_posts( $args = array(), $output = ARRAY_A ) {
if ( is_numeric( $args ) ) {
_deprecated_argument( __FUNCTION__, '3.1', __( 'Passing an integer number of posts is deprecated. Pass an array of arguments instead.' ) );
$args = array( 'numberposts' => absint( $args ) );
}
// Set default arguments.
$defaults = array(
'numberposts' => 10, 'offset' => 0,
'category' => 0, 'orderby' => 'post_date',
'order' => 'DESC', 'include' => '',
'exclude' => '', 'meta_key' => '',
'meta_value' =>'', 'post_type' => 'post', 'post_status' => 'draft, publish, future, pending, private',
'suppress_filters' => true
);
$r = wp_parse_args( $args, $defaults );
$results = get_posts( $r );
// Backward compatibility. Prior to 3.1 expected posts to be returned in array.
if ( ARRAY_A == $output ){
foreach( $results as $key => $result ) {
$results[$key] = get_object_vars( $result );
}
return $results ? $results : array();
}
return $results ? $results : false;
}
/**
* Insert or update a post.
*
* If the $postarr parameter has 'ID' set to a value, then post will be updated.
*
* You can set the post date manually, by setting the values for 'post_date'
* and 'post_date_gmt' keys. You can close the comments or open the comments by
* setting the value for 'comment_status' key.
*
* @since 1.0.0
* @since 4.2.0 Support was added for encoding emoji in the post title, content, and excerpt.
*
* @see sanitize_post()
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $postarr {
* An array of elements that make up a post to update or insert.
*
* @type int $ID The post ID. If equal to something other than 0,
* the post with that ID will be updated. Default 0.
* @type int $post_author The ID of the user who added the post. Default is
* the current user ID.
* @type string $post_date The date of the post. Default is the current time.
* @type string $post_date_gmt The date of the post in the GMT timezone. Default is
* the value of `$post_date`.
* @type mixed $post_content The post content. Default empty.
* @type string $post_content_filtered The filtered post content. Default empty.
* @type string $post_title The post title. Default empty.
* @type string $post_excerpt The post excerpt. Default empty.
* @type string $post_status The post status. Default 'draft'.
* @type string $post_type The post type. Default 'post'.
* @type string $comment_status Whether the post can accept comments. Accepts 'open' or 'closed'.
* Default is the value of 'default_comment_status' option.
* @type string $ping_status Whether the post can accept pings. Accepts 'open' or 'closed'.
* Default is the value of 'default_ping_status' option.
* @type string $post_password The password to access the post. Default empty.
* @type string $post_name The post name. Default is the sanitized post title.
* @type string $to_ping Space or carriage return-separated list of URLs to ping.
* Default empty.
* @type string $pinged Space or carriage return-separated list of URLs that have
* been pinged. Default empty.
* @type string $post_modified The date when the post was last modified. Default is
* the current time.
* @type string $post_modified_gmt The date when the post was last modified in the GMT
* timezone. Default is the current time.
* @type int $post_parent Set this for the post it belongs to, if any. Default 0.
* @type int $menu_order The order the post should be displayed in. Default 0.
* @type string $post_mime_type The mime type of the post. Default empty.
* @type string $guid Global Unique ID for referencing the post. Default empty.
* }
* @param bool $wp_error Optional. Whether to allow return of WP_Error on failure. Default false.
* @return int|WP_Error The post ID on success. The value 0 or WP_Error on failure.
*/
function wp_insert_post( $postarr, $wp_error = false ) {
global $wpdb;
$user_id = get_current_user_id();
$defaults = array('post_status' => 'draft', 'post_type' => 'post', 'post_author' => $user_id,
'ping_status' => get_option('default_ping_status'), 'post_parent' => 0,
'menu_order' => 0, 'to_ping' => '', 'pinged' => '', 'post_password' => '',
'guid' => '', 'post_content_filtered' => '', 'post_excerpt' => '', 'import_id' => 0,
'post_content' => '', 'post_title' => '', 'context' => '');
$postarr = wp_parse_args($postarr, $defaults);
unset( $postarr[ 'filter' ] );
$postarr = sanitize_post($postarr, 'db');
// Are we updating or creating?
$post_ID = 0;
$update = false;
$guid = $postarr['guid'];
if ( ! empty( $postarr['ID'] ) ) {
$update = true;
// Get the post ID and GUID.
$post_ID = $postarr['ID'];
$post_before = get_post( $post_ID );
if ( is_null( $post_before ) ) {
if ( $wp_error ) {
return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) );
}
return 0;
}
$guid = get_post_field( 'guid', $post_ID );
$previous_status = get_post_field('post_status', $post_ID );
} else {
$previous_status = 'new';
}
$post_type = empty( $postarr['post_type'] ) ? 'post' : $postarr['post_type'];
$post_title = $postarr['post_title'];
$post_content = $postarr['post_content'];
$post_excerpt = $postarr['post_excerpt'];
if ( isset( $postarr['post_name'] ) ) {
$post_name = $postarr['post_name'];
}
$maybe_empty = 'attachment' !== $post_type
&& ! $post_content && ! $post_title && ! $post_excerpt
&& post_type_supports( $post_type, 'editor' )
&& post_type_supports( $post_type, 'title' )
&& post_type_supports( $post_type, 'excerpt' );
/**
* Filter whether the post should be considered "empty".
*
* The post is considered "empty" if both:
* 1. The post type supports the title, editor, and excerpt fields
* 2. The title, editor, and excerpt fields are all empty
*
* Returning a truthy value to the filter will effectively short-circuit
* the new post being inserted, returning 0. If $wp_error is true, a WP_Error
* will be returned instead.
*
* @since 3.3.0
*
* @param bool $maybe_empty Whether the post should be considered "empty".
* @param array $postarr Array of post data.
*/
if ( apply_filters( 'wp_insert_post_empty_content', $maybe_empty, $postarr ) ) {
if ( $wp_error ) {
return new WP_Error( 'empty_content', __( 'Content, title, and excerpt are empty.' ) );
} else {
return 0;
}
}
$post_status = empty( $postarr['post_status'] ) ? 'draft' : $postarr['post_status'];
if ( 'attachment' === $post_type && ! in_array( $post_status, array( 'inherit', 'private', 'trash' ) ) ) {
$post_status = 'inherit';
}
if ( ! empty( $postarr['post_category'] ) ) {
// Filter out empty terms.
$post_category = array_filter( $postarr['post_category'] );
}
// Make sure we set a valid category.
if ( empty( $post_category ) || 0 == count( $post_category ) || ! is_array( $post_category ) ) {
// 'post' requires at least one category.
if ( 'post' == $post_type && 'auto-draft' != $post_status ) {
$post_category = array( get_option('default_category') );
} else {
$post_category = array();
}
}
// Don't allow contributors to set the post slug for pending review posts.
if ( 'pending' == $post_status && !current_user_can( 'publish_posts' ) ) {
$post_name = '';
}
/*
* Create a valid post name. Drafts and pending posts are allowed to have
* an empty post name.
*/
if ( empty($post_name) ) {
if ( !in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) {
$post_name = sanitize_title($post_title);
} else {
$post_name = '';
}
} else {
// On updates, we need to check to see if it's using the old, fixed sanitization context.
$check_name = sanitize_title( $post_name, '', 'old-save' );
if ( $update && strtolower( urlencode( $post_name ) ) == $check_name && get_post_field( 'post_name', $post_ID ) == $check_name ) {
$post_name = $check_name;
} else { // new post, or slug has changed.
$post_name = sanitize_title($post_name);
}
}
/*
* If the post date is empty (due to having been new or a draft) and status
* is not 'draft' or 'pending', set date to now.
*/
if ( empty( $postarr['post_date'] ) || '0000-00-00 00:00:00' == $postarr['post_date'] ) {
$post_date = current_time( 'mysql' );
} else {
$post_date = $postarr['post_date'];
}
// Validate the date.
$mm = substr( $post_date, 5, 2 );
$jj = substr( $post_date, 8, 2 );
$aa = substr( $post_date, 0, 4 );
$valid_date = wp_checkdate( $mm, $jj, $aa, $post_date );
if ( ! $valid_date ) {
if ( $wp_error ) {
return new WP_Error( 'invalid_date', __( 'Whoops, the provided date is invalid.' ) );
} else {
return 0;
}
}
if ( empty( $postarr['post_date_gmt'] ) || '0000-00-00 00:00:00' == $postarr['post_date_gmt'] ) {
if ( ! in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) {
$post_date_gmt = get_gmt_from_date( $post_date );
} else {
$post_date_gmt = '0000-00-00 00:00:00';
}
} else {
$post_date_gmt = $postarr['post_date_gmt'];
}
if ( $update || '0000-00-00 00:00:00' == $post_date ) {
$post_modified = current_time( 'mysql' );
$post_modified_gmt = current_time( 'mysql', 1 );
} else {
$post_modified = $post_date;
$post_modified_gmt = $post_date_gmt;
}
if ( 'attachment' !== $post_type ) {
if ( 'publish' == $post_status ) {
$now = gmdate('Y-m-d H:i:59');
if ( mysql2date('U', $post_date_gmt, false) > mysql2date('U', $now, false) ) {
$post_status = 'future';
}
} elseif( 'future' == $post_status ) {
$now = gmdate('Y-m-d H:i:59');
if ( mysql2date('U', $post_date_gmt, false) <= mysql2date('U', $now, false) ) {
$post_status = 'publish';
}
}
}
if ( empty( $postarr['comment_status'] ) ) {
if ( $update ) {
$comment_status = 'closed';
} else {
$comment_status = get_option('default_comment_status');
}
} else {
$comment_status = $postarr['comment_status'];
}
// These variables are needed by compact() later.
$post_content_filtered = $postarr['post_content_filtered'];
$post_author = empty( $postarr['post_author'] ) ? $user_id : $postarr['post_author'];
$ping_status = empty( $postarr['ping_status'] ) ? get_option( 'default_ping_status' ) : $postarr['ping_status'];
$to_ping = isset( $postarr['to_ping'] ) ? sanitize_trackback_urls( $postarr['to_ping'] ) : '';
$pinged = isset( $postarr['pinged'] ) ? $postarr['pinged'] : '';
$import_id = isset( $postarr['import_id'] ) ? $postarr['import_id'] : 0;
/*
* The 'wp_insert_post_parent' filter expects all variables to be present.
* Previously, these variables would have already been extracted
*/
if ( isset( $postarr['menu_order'] ) ) {
$menu_order = (int) $postarr['menu_order'];
} else {
$menu_order = 0;
}
$post_password = isset( $postarr['post_password'] ) ? $postarr['post_password'] : '';
if ( 'private' == $post_status ) {
$post_password = '';
}
if ( isset( $postarr['post_parent'] ) ) {
$post_parent = (int) $postarr['post_parent'];
} else {
$post_parent = 0;
}
/**
* Filter the post parent -- used to check for and prevent hierarchy loops.
*
* @since 3.1.0
*
* @param int $post_parent Post parent ID.
* @param int $post_ID Post ID.
* @param array $new_postarr Array of parsed post data.
* @param array $postarr Array of sanitized, but otherwise unmodified post data.
*/
$post_parent = apply_filters( 'wp_insert_post_parent', $post_parent, $post_ID, compact( array_keys( $postarr ) ), $postarr );
$post_name = wp_unique_post_slug( $post_name, $post_ID, $post_status, $post_type, $post_parent );
// Don't unslash.
$post_mime_type = isset( $postarr['post_mime_type'] ) ? $postarr['post_mime_type'] : '';
// Expected_slashed (everything!).
$data = compact( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_content_filtered', 'post_title', 'post_excerpt', 'post_status', 'post_type', 'comment_status', 'ping_status', 'post_password', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_parent', 'menu_order', 'post_mime_type', 'guid' );
$emoji_fields = array( 'post_title', 'post_content', 'post_excerpt' );
foreach( $emoji_fields as $emoji_field ) {
if ( isset( $data[ $emoji_field ] ) ) {
$charset = $wpdb->get_col_charset( $wpdb->posts, $emoji_field );
if ( 'utf8' === $charset ) {
$data[ $emoji_field ] = wp_encode_emoji( $data[ $emoji_field ] );
}
}
}
if ( 'attachment' === $post_type ) {
/**
* Filter attachment post data before it is updated in or added to the database.
*
* @since 3.9.0
*
* @param array $data An array of sanitized attachment post data.
* @param array $postarr An array of unsanitized attachment post data.
*/
$data = apply_filters( 'wp_insert_attachment_data', $data, $postarr );
} else {
/**
* Filter slashed post data just before it is inserted into the database.
*
* @since 2.7.0
*
* @param array $data An array of slashed post data.
* @param array $postarr An array of sanitized, but otherwise unmodified post data.
*/
$data = apply_filters( 'wp_insert_post_data', $data, $postarr );
}
$data = wp_unslash( $data );
$where = array( 'ID' => $post_ID );
if ( $update ) {
/**
* Fires immediately before an existing post is updated in the database.
*
* @since 2.5.0
*
* @param int $post_ID Post ID.
* @param array $data Array of unslashed post data.
*/
do_action( 'pre_post_update', $post_ID, $data );
if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) {
if ( $wp_error ) {
return new WP_Error('db_update_error', __('Could not update post in the database'), $wpdb->last_error);
} else {
return 0;
}
}
} else {
// If there is a suggested ID, use it if not already present.
if ( ! empty( $import_id ) ) {
$import_id = (int) $import_id;
if ( ! $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE ID = %d", $import_id) ) ) {
$data['ID'] = $import_id;
}
}
if ( false === $wpdb->insert( $wpdb->posts, $data ) ) {
if ( $wp_error ) {
return new WP_Error('db_insert_error', __('Could not insert post into the database'), $wpdb->last_error);
} else {
return 0;
}
}
$post_ID = (int) $wpdb->insert_id;
// Use the newly generated $post_ID.
$where = array( 'ID' => $post_ID );
}
if ( empty( $data['post_name'] ) && ! in_array( $data['post_status'], array( 'draft', 'pending', 'auto-draft' ) ) ) {
$data['post_name'] = sanitize_title( $data['post_title'], $post_ID );
$wpdb->update( $wpdb->posts, array( 'post_name' => $data['post_name'] ), $where );
}
if ( is_object_in_taxonomy( $post_type, 'category' ) ) {
wp_set_post_categories( $post_ID, $post_category );
}
if ( isset( $postarr['tags_input'] ) && is_object_in_taxonomy( $post_type, 'post_tag' ) ) {
wp_set_post_tags( $post_ID, $postarr['tags_input'] );
}
// New-style support for all custom taxonomies.
if ( ! empty( $postarr['tax_input'] ) ) {
foreach ( $postarr['tax_input'] as $taxonomy => $tags ) {
$taxonomy_obj = get_taxonomy($taxonomy);
// array = hierarchical, string = non-hierarchical.
if ( is_array( $tags ) ) {
$tags = array_filter($tags);
}
if ( current_user_can( $taxonomy_obj->cap->assign_terms ) ) {
wp_set_post_terms( $post_ID, $tags, $taxonomy );
}
}
}
$current_guid = get_post_field( 'guid', $post_ID );
// Set GUID.
if ( ! $update && '' == $current_guid ) {
$wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post_ID ) ), $where );
}
if ( 'attachment' === $postarr['post_type'] ) {
if ( ! empty( $postarr['file'] ) ) {
update_attached_file( $post_ID, $postarr['file'] );
}
if ( ! empty( $postarr['context'] ) ) {
add_post_meta( $post_ID, '_wp_attachment_context', $postarr['context'], true );
}
}
clean_post_cache( $post_ID );
$post = get_post( $post_ID );
if ( ! empty( $postarr['page_template'] ) && 'page' == $data['post_type'] ) {
$post->page_template = $postarr['page_template'];
$page_templates = wp_get_theme()->get_page_templates( $post );
if ( 'default' != $postarr['page_template'] && ! isset( $page_templates[ $postarr['page_template'] ] ) ) {
if ( $wp_error ) {
return new WP_Error('invalid_page_template', __('The page template is invalid.'));
}
update_post_meta( $post_ID, '_wp_page_template', 'default' );
} else {
update_post_meta( $post_ID, '_wp_page_template', $postarr['page_template'] );
}
}
if ( 'attachment' !== $postarr['post_type'] ) {
wp_transition_post_status( $data['post_status'], $previous_status, $post );
} else {
if ( $update ) {
/**
* Fires once an existing attachment has been updated.
*
* @since 2.0.0
*
* @param int $post_ID Attachment ID.
*/
do_action( 'edit_attachment', $post_ID );
} else {
/**
* Fires once an attachment has been added.
*
* @since 2.0.0
*
* @param int $post_ID Attachment ID.
*/
do_action( 'add_attachment', $post_ID );
}
return $post_ID;
}
if ( $update ) {
/**
* Fires once an existing post has been updated.
*
* @since 1.2.0
*
* @param int $post_ID Post ID.
* @param WP_Post $post Post object.
*/
do_action( 'edit_post', $post_ID, $post );
$post_after = get_post($post_ID);
/**
* Fires once an existing post has been updated.
*
* @since 3.0.0
*
* @param int $post_ID Post ID.
* @param WP_Post $post_after Post object following the update.
* @param WP_Post $post_before Post object before the update.
*/
do_action( 'post_updated', $post_ID, $post_after, $post_before);
}
/**
* Fires once a post has been saved.
*
* The dynamic portion of the hook name, `$post->post_type`, refers to
* the post type slug.
*
* @since 3.7.0
*
* @param int $post_ID Post ID.
* @param WP_Post $post Post object.
* @param bool $update Whether this is an existing post being updated or not.
*/
do_action( "save_post_{$post->post_type}", $post_ID, $post, $update );
/**
* Fires once a post has been saved.
*
* @since 1.5.0
*
* @param int $post_ID Post ID.
* @param WP_Post $post Post object.
* @param bool $update Whether this is an existing post being updated or not.
*/
do_action( 'save_post', $post_ID, $post, $update );
/**
* Fires once a post has been saved.
*
* @since 2.0.0
*
* @param int $post_ID Post ID.
* @param WP_Post $post Post object.
* @param bool $update Whether this is an existing post being updated or not.
*/
do_action( 'wp_insert_post', $post_ID, $post, $update );
return $post_ID;
}
/**
* Update a post with new post data.
*
* The date does not have to be set for drafts. You can set the date and it will
* not be overridden.
*
* @since 1.0.0
*
* @param array|object $postarr Optional. Post data. Arrays are expected to be escaped,
* objects are not. Default array.
* @param bool $wp_error Optional. Allow return of WP_Error on failure. Default false.
* @return int|WP_Error The value 0 or WP_Error on failure. The post ID on success.
*/
function wp_update_post( $postarr = array(), $wp_error = false ) {
if ( is_object($postarr) ) {
// Non-escaped post was passed.
$postarr = get_object_vars($postarr);
$postarr = wp_slash($postarr);
}
// First, get all of the original fields.
$post = get_post($postarr['ID'], ARRAY_A);
if ( is_null( $post ) ) {
if ( $wp_error )
return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) );
return 0;
}
// Escape data pulled from DB.
$post = wp_slash($post);
// Passed post category list overwrites existing category list if not empty.
if ( isset($postarr['post_category']) && is_array($postarr['post_category'])
&& 0 != count($postarr['post_category']) )
$post_cats = $postarr['post_category'];
else
$post_cats = $post['post_category'];
// Drafts shouldn't be assigned a date unless explicitly done so by the user.
if ( isset( $post['post_status'] ) && in_array($post['post_status'], array('draft', 'pending', 'auto-draft')) && empty($postarr['edit_date']) &&
('0000-00-00 00:00:00' == $post['post_date_gmt']) )
$clear_date = true;
else
$clear_date = false;
// Merge old and new fields with new fields overwriting old ones.
$postarr = array_merge($post, $postarr);
$postarr['post_category'] = $post_cats;
if ( $clear_date ) {
$postarr['post_date'] = current_time('mysql');
$postarr['post_date_gmt'] = '';
}
if ($postarr['post_type'] == 'attachment')
return wp_insert_attachment($postarr);
return wp_insert_post( $postarr, $wp_error );
}
/**
* Publish a post by transitioning the post status.
*
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|WP_Post $post Post ID or post object.
*/
function wp_publish_post( $post ) {
global $wpdb;
if ( ! $post = get_post( $post ) )
return;
if ( 'publish' == $post->post_status )
return;
$wpdb->update( $wpdb->posts, array( 'post_status' => 'publish' ), array( 'ID' => $post->ID ) );
clean_post_cache( $post->ID );
$old_status = $post->post_status;
$post->post_status = 'publish';
wp_transition_post_status( 'publish', $old_status, $post );
/** This action is documented in wp-includes/post.php */
do_action( 'edit_post', $post->ID, $post );
/** This action is documented in wp-includes/post.php */
do_action( "save_post_{$post->post_type}", $post->ID, $post, true );
/** This action is documented in wp-includes/post.php */
do_action( 'save_post', $post->ID, $post, true );
/** This action is documented in wp-includes/post.php */
do_action( 'wp_insert_post', $post->ID, $post, true );
}
/**
* Publish future post and make sure post ID has future post status.
*
* Invoked by cron 'publish_future_post' event. This safeguard prevents cron
* from publishing drafts, etc.
*
* @since 2.5.0
*
* @param int|WP_Post $post_id Post ID or post object.
* @return null Nothing is returned. Which can mean that no action is required
* or post was published.
*/
function check_and_publish_future_post( $post_id ) {
$post = get_post($post_id);
if ( empty($post) )
return;
if ( 'future' != $post->post_status )
return;
$time = strtotime( $post->post_date_gmt . ' GMT' );
// Uh oh, someone jumped the gun!
if ( $time > time() ) {
wp_clear_scheduled_hook( 'publish_future_post', array( $post_id ) ); // clear anything else in the system
wp_schedule_single_event( $time, 'publish_future_post', array( $post_id ) );
return;
}
return wp_publish_post($post_id);
}
/**
* Computes a unique slug for the post, when given the desired slug and some post details.
*
* @since 2.8.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global WP_Rewrite $wp_rewrite
*
* @param string $slug The desired slug (post_name).
* @param int $post_ID Post ID.
* @param string $post_status No uniqueness checks are made if the post is still draft or pending.
* @param string $post_type Post type.
* @param int $post_parent Post parent ID.
* @return string Unique slug for the post, based on $post_name (with a -1, -2, etc. suffix)
*/
function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_parent ) {
if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) || ( 'inherit' == $post_status && 'revision' == $post_type ) )
return $slug;
global $wpdb, $wp_rewrite;
$original_slug = $slug;
$feeds = $wp_rewrite->feeds;
if ( ! is_array( $feeds ) )
$feeds = array();
if ( 'attachment' == $post_type ) {
// Attachment slugs must be unique across all types.
$check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND ID != %d LIMIT 1";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_ID ) );
/**
* Filter whether the post slug would make a bad attachment slug.
*
* @since 3.1.0
*
* @param bool $bad_slug Whether the slug would be bad as an attachment slug.
* @param string $slug The post slug.
*/
if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug ) ) {
$suffix = 2;
do {
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID ) );
$suffix++;
} while ( $post_name_check );
$slug = $alt_post_name;
}
} elseif ( is_post_type_hierarchical( $post_type ) ) {
if ( 'nav_menu_item' == $post_type )
return $slug;
/*
* Page slugs must be unique within their own trees. Pages are in a separate
* namespace than posts so page slugs are allowed to overlap post slugs.
*/
$check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type IN ( %s, 'attachment' ) AND ID != %d AND post_parent = %d LIMIT 1";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_ID, $post_parent ) );
/**
* Filter whether the post slug would make a bad hierarchical post slug.
*
* @since 3.1.0
*
* @param bool $bad_slug Whether the post slug would be bad in a hierarchical post context.
* @param string $slug The post slug.
* @param string $post_type Post type.
* @param int $post_parent Post parent ID.
*/
if ( $post_name_check || in_array( $slug, $feeds ) || preg_match( "@^($wp_rewrite->pagination_base)?\d+$@", $slug ) || apply_filters( 'wp_unique_post_slug_is_bad_hierarchical_slug', false, $slug, $post_type, $post_parent ) ) {
$suffix = 2;
do {
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID, $post_parent ) );
$suffix++;
} while ( $post_name_check );
$slug = $alt_post_name;
}
} else {
// Post slugs must be unique across all posts.
$check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type = %s AND ID != %d LIMIT 1";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_ID ) );
/**
* Filter whether the post slug would be bad as a flat slug.
*
* @since 3.1.0
*
* @param bool $bad_slug Whether the post slug would be bad as a flat slug.
* @param string $slug The post slug.
* @param string $post_type Post type.
*/
if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_flat_slug', false, $slug, $post_type ) ) {
$suffix = 2;
do {
$alt_post_name = _truncate_post_slug( $slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
$post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID ) );
$suffix++;
} while ( $post_name_check );
$slug = $alt_post_name;
}
}
/**
* Filter the unique post slug.
*
* @since 3.3.0
*
* @param string $slug The post slug.
* @param int $post_ID Post ID.
* @param string $post_status The post status.
* @param string $post_type Post type.
* @param int $post_parent Post parent ID
* @param string $original_slug The original post slug.
*/
return apply_filters( 'wp_unique_post_slug', $slug, $post_ID, $post_status, $post_type, $post_parent, $original_slug );
}
/**
* Truncate a post slug.
*
* @since 3.6.0
* @access private
*
* @see utf8_uri_encode()
*
* @param string $slug The slug to truncate.
* @param int $length Optional. Max length of the slug. Default 200 (characters).
* @return string The truncated slug.
*/
function _truncate_post_slug( $slug, $length = 200 ) {
if ( strlen( $slug ) > $length ) {
$decoded_slug = urldecode( $slug );
if ( $decoded_slug === $slug )
$slug = substr( $slug, 0, $length );
else
$slug = utf8_uri_encode( $decoded_slug, $length );
}
return rtrim( $slug, '-' );
}
/**
* Add tags to a post.
*
* @see wp_set_post_tags()
*
* @since 2.3.0
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post.
* Default 0.
* @param string $tags Optional. The tags to set for the post, separated by commas. Default empty.
* @return bool|null Will return false if $post_id is not an integer or is 0. Will return null otherwise.
*/
function wp_add_post_tags( $post_id = 0, $tags = '' ) {
return wp_set_post_tags($post_id, $tags, true);
}
/**
* Set the tags for a post.
*
* @since 2.3.0
*
* @see wp_set_object_terms()
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post.
* @param string $tags Optional. The tags to set for the post, separated by commas.
* Default empty.
* @param bool $append Optional. If true, don't delete existing tags, just add on. If false,
* replace the tags with the new tags. Default false.
* @return mixed Array of affected term IDs. WP_Error or false on failure.
*/
function wp_set_post_tags( $post_id = 0, $tags = '', $append = false ) {
return wp_set_post_terms( $post_id, $tags, 'post_tag', $append);
}
/**
* Set the terms for a post.
*
* @since 2.8.0
*
* @see wp_set_object_terms()
*
* @param int $post_id Optional. The Post ID. Does not default to the ID of the global $post.
* @param string $tags Optional. The tags to set for the post, separated by commas. Default empty.
* @param string $taxonomy Optional. Taxonomy name. Default 'post_tag'.
* @param bool $append Optional. If true, don't delete existing tags, just add on. If false,
* replace the tags with the new tags. Default false.
* @return mixed Array of affected term IDs. WP_Error or false on failure.
*/
function wp_set_post_terms( $post_id = 0, $tags = '', $taxonomy = 'post_tag', $append = false ) {
$post_id = (int) $post_id;
if ( !$post_id )
return false;
if ( empty($tags) )
$tags = array();
if ( ! is_array( $tags ) ) {
$comma = _x( ',', 'tag delimiter' );
if ( ',' !== $comma )
$tags = str_replace( $comma, ',', $tags );
$tags = explode( ',', trim( $tags, " \n\t\r\0\x0B," ) );
}
/*
* Hierarchical taxonomies must always pass IDs rather than names so that
* children with the same names but different parents aren't confused.
*/
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$tags = array_unique( array_map( 'intval', $tags ) );
}
return wp_set_object_terms( $post_id, $tags, $taxonomy, $append );
}
/**
* Set categories for a post.
*
* If the post categories parameter is not set, then the default category is
* going used.
*
* @since 2.1.0
*
* @param int $post_ID Optional. The Post ID. Does not default to the ID
* of the global $post. Default 0.
* @param array|int $post_categories Optional. List of categories or ID of category.
* Default empty array.
* @param bool $append If true, don't delete existing categories, just add on.
* If false, replace the categories with the new categories.
* @return bool|mixed
*/
function wp_set_post_categories( $post_ID = 0, $post_categories = array(), $append = false ) {
$post_ID = (int) $post_ID;
$post_type = get_post_type( $post_ID );
$post_status = get_post_status( $post_ID );
// If $post_categories isn't already an array, make it one:
$post_categories = (array) $post_categories;
if ( empty( $post_categories ) ) {
if ( 'post' == $post_type && 'auto-draft' != $post_status ) {
$post_categories = array( get_option('default_category') );
$append = false;
} else {
$post_categories = array();
}
} elseif ( 1 == count( $post_categories ) && '' == reset( $post_categories ) ) {
return true;
}
return wp_set_post_terms( $post_ID, $post_categories, 'category', $append );
}
/**
* Transition the post status of a post.
*
* When a post is saved, the post status is "transitioned" from one status to another,
* though this does not always mean the status has actually changed before and after
* the save.
*
* For instance: When publishing a post for the first time, the post status may transition
* from 'draft' – or some other status – to 'publish'. However, if a post is already
* published and is simply being updated, the "old" and "new" statuses may both be 'publish'
* before and after the transition.
*
* @since 2.3.0
*
* @param string $new_status Transition to this post status.
* @param string $old_status Previous post status.
* @param WP_Post $post Post data.
*/
function wp_transition_post_status( $new_status, $old_status, $post ) {
/**
* Fires when a post is transitioned from one status to another.
*
* @since 2.3.0
*
* @param string $new_status New post status.
* @param string $old_status Old post status.
* @param WP_Post $post Post object.
*/
do_action( 'transition_post_status', $new_status, $old_status, $post );
/**
* Fires when a post is transitioned from one status to another.
*
* The dynamic portions of the hook name, `$new_status` and `$old status`,
* refer to the old and new post statuses, respectively.
*
* @since 2.3.0
*
* @param WP_Post $post Post object.
*/
do_action( "{$old_status}_to_{$new_status}", $post );
/**
* Fires when a post is transitioned from one status to another.
*
* The dynamic portions of the hook name, `$new_status` and `$post->post_type`,
* refer to the new post status and post type, respectively.
*
* Please note: When this action is hooked using a particular post status (like
* 'publish', as `publish_{$post->post_type}`), it will fire both when a post is
* first transitioned to that status from something else, as well as upon
* subsequent post updates (old and new status are both the same).
*
* Therefore, if you are looking to only fire a callback when a post is first
* transitioned to a status, use the {@see 'transition_post_status'} hook instead.
*
* @since 2.3.0
*
* @param int $post_id Post ID.
* @param WP_Post $post Post object.
*/
do_action( "{$new_status}_{$post->post_type}", $post->ID, $post );
}
//
// Trackback and ping functions
//
/**
* Add a URL to those already pinged.
*
* @since 1.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $post_id Post ID.
* @param string $uri Ping URI.
* @return int How many rows were updated.
*/
function add_ping( $post_id, $uri ) {
global $wpdb;
$pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id ));
$pung = trim($pung);
$pung = preg_split('/\s/', $pung);
$pung[] = $uri;
$new = implode("\n", $pung);
/**
* Filter the new ping URL to add for the given post.
*
* @since 2.0.0
*
* @param string $new New ping URL to add.
*/
$new = apply_filters( 'add_ping', $new );
// expected_slashed ($new).
$new = wp_unslash($new);
return $wpdb->update( $wpdb->posts, array( 'pinged' => $new ), array( 'ID' => $post_id ) );
}
/**
* Retrieve enclosures already enclosed for a post.
*
* @since 1.5.0
*
* @param int $post_id Post ID.
* @return array List of enclosures.
*/
function get_enclosed( $post_id ) {
$custom_fields = get_post_custom( $post_id );
$pung = array();
if ( !is_array( $custom_fields ) )
return $pung;
foreach ( $custom_fields as $key => $val ) {
if ( 'enclosure' != $key || !is_array( $val ) )
continue;
foreach( $val as $enc ) {
$enclosure = explode( "\n", $enc );
$pung[] = trim( $enclosure[ 0 ] );
}
}
/**
* Filter the list of enclosures already enclosed for the given post.
*
* @since 2.0.0
*
* @param array $pung Array of enclosures for the given post.
* @param int $post_id Post ID.
*/
$pung = apply_filters( 'get_enclosed', $pung, $post_id );
return $pung;
}
/**
* Retrieve URLs already pinged for a post.
*
* @since 1.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $post_id Post ID.
* @return array
*/
function get_pung( $post_id ) {
global $wpdb;
$pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id ));
$pung = trim($pung);
$pung = preg_split('/\s/', $pung);
/**
* Filter the list of already-pinged URLs for the given post.
*
* @since 2.0.0
*
* @param array $pung Array of URLs already pinged for the given post.
*/
$pung = apply_filters( 'get_pung', $pung );
return $pung;
}
/**
* Retrieve URLs that need to be pinged.
*
* @since 1.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $post_id Post ID
* @return array
*/
function get_to_ping( $post_id ) {
global $wpdb;
$to_ping = $wpdb->get_var( $wpdb->prepare( "SELECT to_ping FROM $wpdb->posts WHERE ID = %d", $post_id ));
$to_ping = sanitize_trackback_urls( $to_ping );
$to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY);
/**
* Filter the list of URLs yet to ping for the given post.
*
* @since 2.0.0
*
* @param array $to_ping List of URLs yet to ping.
*/
$to_ping = apply_filters( 'get_to_ping', $to_ping );
return $to_ping;
}
/**
* Do trackbacks for a list of URLs.
*
* @since 1.0.0
*
* @param string $tb_list Comma separated list of URLs.
* @param int $post_id Post ID.
*/
function trackback_url_list( $tb_list, $post_id ) {
if ( ! empty( $tb_list ) ) {
// Get post data.
$postdata = get_post( $post_id, ARRAY_A );
// Form an excerpt.
$excerpt = strip_tags( $postdata['post_excerpt'] ? $postdata['post_excerpt'] : $postdata['post_content'] );
if ( strlen( $excerpt ) > 255 ) {
$excerpt = substr( $excerpt, 0, 252 ) . '…';
}
$trackback_urls = explode( ',', $tb_list );
foreach( (array) $trackback_urls as $tb_url ) {
$tb_url = trim( $tb_url );
trackback( $tb_url, wp_unslash( $postdata['post_title'] ), $excerpt, $post_id );
}
}
}
//
// Page functions
//
/**
* Get a list of page IDs.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return array List of page IDs.
*/
function get_all_page_ids() {
global $wpdb;
$page_ids = wp_cache_get('all_page_ids', 'posts');
if ( ! is_array( $page_ids ) ) {
$page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type = 'page'");
wp_cache_add('all_page_ids', $page_ids, 'posts');
}
return $page_ids;
}
/**
* Retrieves page data given a page ID or page object.
*
* Use get_post() instead of get_page().
*
* @since 1.5.1
* @deprecated 3.5.0 Use get_post()
*
* @param mixed $page Page object or page ID. Passed by reference.
* @param string $output Optional. What to output. Accepts OBJECT, ARRAY_A, or ARRAY_N.
* Default OBJECT.
* @param string $filter Optional. How the return value should be filtered. Accepts 'raw',
* 'edit', 'db', 'display'. Default 'raw'.
* @return WP_Post|null WP_Post on success or null on failure.
*/
function get_page( $page, $output = OBJECT, $filter = 'raw') {
return get_post( $page, $output, $filter );
}
/**
* Retrieves a page given its path.
*
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $page_path Page path.
* @param string $output Optional. Output type. Accepts OBJECT, ARRAY_N, or ARRAY_A.
* Default OBJECT.
* @param string|array $post_type Optional. Post type or array of post types. Default 'page'.
* @return WP_Post|null WP_Post on success or null on failure.
*/
function get_page_by_path( $page_path, $output = OBJECT, $post_type = 'page' ) {
global $wpdb;
$page_path = rawurlencode(urldecode($page_path));
$page_path = str_replace('%2F', '/', $page_path);
$page_path = str_replace('%20', ' ', $page_path);
$parts = explode( '/', trim( $page_path, '/' ) );
$parts = esc_sql( $parts );
$parts = array_map( 'sanitize_title_for_query', $parts );
$in_string = "'" . implode( "','", $parts ) . "'";
if ( is_array( $post_type ) ) {
$post_types = $post_type;
} else {
$post_types = array( $post_type, 'attachment' );
}
$post_types = esc_sql( $post_types );
$post_type_in_string = "'" . implode( "','", $post_types ) . "'";
$sql = "
SELECT ID, post_name, post_parent, post_type
FROM $wpdb->posts
WHERE post_name IN ($in_string)
AND post_type IN ($post_type_in_string)
";
$pages = $wpdb->get_results( $sql, OBJECT_K );
$revparts = array_reverse( $parts );
$foundid = 0;
foreach ( (array) $pages as $page ) {
if ( $page->post_name == $revparts[0] ) {
$count = 0;
$p = $page;
while ( $p->post_parent != 0 && isset( $pages[ $p->post_parent ] ) ) {
$count++;
$parent = $pages[ $p->post_parent ];
if ( ! isset( $revparts[ $count ] ) || $parent->post_name != $revparts[ $count ] )
break;
$p = $parent;
}
if ( $p->post_parent == 0 && $count+1 == count( $revparts ) && $p->post_name == $revparts[ $count ] ) {
$foundid = $page->ID;
if ( $page->post_type == $post_type )
break;
}
}
}
if ( $foundid )
return get_post( $foundid, $output );
return null;
}
/**
* Retrieve a page given its title.
*
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $page_title Page title
* @param string $output Optional. Output type. OBJECT, ARRAY_N, or ARRAY_A.
* Default OBJECT.
* @param string|array $post_type Optional. Post type or array of post types. Default 'page'.
* @return WP_Post|null WP_Post on success or null on failure
*/
function get_page_by_title( $page_title, $output = OBJECT, $post_type = 'page' ) {
global $wpdb;
if ( is_array( $post_type ) ) {
$post_type = esc_sql( $post_type );
$post_type_in_string = "'" . implode( "','", $post_type ) . "'";
$sql = $wpdb->prepare( "
SELECT ID
FROM $wpdb->posts
WHERE post_title = %s
AND post_type IN ($post_type_in_string)
", $page_title );
} else {
$sql = $wpdb->prepare( "
SELECT ID
FROM $wpdb->posts
WHERE post_title = %s
AND post_type = %s
", $page_title, $post_type );
}
$page = $wpdb->get_var( $sql );
if ( $page )
return get_post( $page, $output );
return null;
}
/**
* Retrieve child pages from list of pages matching page ID.
*
* Matches against the pages parameter against the page ID. Also matches all
* children for the same to retrieve all children of a page. Does not make any
* SQL queries to get the children.
*
* @since 1.5.1
*
* @param int $page_id Page ID.
* @param array $pages List of pages' objects.
* @return array List of page children.
*/
function get_page_children( $page_id, $pages ) {
$page_list = array();
foreach ( (array) $pages as $page ) {
if ( $page->post_parent == $page_id ) {
$page_list[] = $page;
if ( $children = get_page_children( $page->ID, $pages ) ) {
$page_list = array_merge( $page_list, $children );
}
}
}
return $page_list;
}
/**
* Order the pages with children under parents in a flat list.
*
* It uses auxiliary structure to hold parent-children relationships and
* runs in O(N) complexity
*
* @since 2.0.0
*
* @param array $pages Posts array, passed by reference.
* @param int $page_id Optional. Parent page ID. Default 0.
* @return array A list arranged by hierarchy. Children immediately follow their parents.
*/
function get_page_hierarchy( &$pages, $page_id = 0 ) {
if ( empty( $pages ) ) {
$result = array();
return $result;
}
$children = array();
foreach ( (array) $pages as $p ) {
$parent_id = intval( $p->post_parent );
$children[ $parent_id ][] = $p;
}
$result = array();
_page_traverse_name( $page_id, $children, $result );
return $result;
}
/**
* Traverse and return all the nested children post names of a root page.
*
* $children contains parent-children relations
*
* @since 2.9.0
*
* @see _page_traverse_name()
*
* @param int $page_id Page ID.
* @param array &$children Parent-children relations, passed by reference.
* @param array &$result Result, passed by reference.
*/
function _page_traverse_name( $page_id, &$children, &$result ){
if ( isset( $children[ $page_id ] ) ){
foreach( (array)$children[ $page_id ] as $child ) {
$result[ $child->ID ] = $child->post_name;
_page_traverse_name( $child->ID, $children, $result );
}
}
}
/**
* Build URI for a page.
*
* Sub pages will be in the "directory" under the parent page post name.
*
* @since 1.5.0
*
* @param WP_Post|object|int $page Page object or page ID.
* @return string|false Page URI, false on error.
*/
function get_page_uri( $page ) {
$page = get_post( $page );
if ( ! $page )
return false;
$uri = $page->post_name;
foreach ( $page->ancestors as $parent ) {
$uri = get_post( $parent )->post_name . '/' . $uri;
}
return $uri;
}
/**
* Retrieve a list of pages.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @since 1.5.0
*
* @param array|string $args {
* Optional. Array or string of arguments to retrieve pages.
*
* @type int $child_of Page ID to return child and grandchild pages of.
* Default 0, or no restriction.
* @type string $sort_order How to sort retrieved pages. Accepts 'ASC', 'DESC'. Default 'ASC'.
* @type string $sort_column What columns to sort pages by, comma-separated. Accepts 'post_author',
* 'post_date', 'post_title', 'post_name', 'post_modified', 'menu_order',
* 'post_modified_gmt', 'post_parent', 'ID', 'rand', 'comment_count'.
* 'post_' can be omitted for any values that start with it.
* Default 'post_title'.
* @type bool $hierarchical Whether to return pages hierarchically. Default true.
* @type array $exclude Array of page IDs to exclude. Default empty array.
* @type array $include Array of page IDs to include. Cannot be used with `$child_of`,
* `$parent`, `$exclude`, `$meta_key`, `$meta_value`, or `$hierarchical`.
* Default empty array.
* @type string $meta_key Only include pages with this meta key. Default empty.
* @type string $meta_value Only include pages with this meta value. Requires `$meta_key`.
* Default empty.
* @type string $authors A comma-separated list of author IDs. Default empty.
* @type int $parent Page ID to return direct children of. `$hierarchical` must be false.
* Default -1, or no restriction.
* @type string|array $exclude_tree Comma-separated string or array of page IDs to exclude.
* Default empty array.
* @type int $number The number of pages to return. Default 0, or all pages.
* @type int $offset The number of pages to skip before returning. Requires `$number`.
* Default 0.
* @type string $post_type The post type to query. Default 'page'.
* @type string $post_status A comma-separated list of post status types to include.
* Default 'publish'.
* }
* @return array List of pages matching defaults or `$args`.
*/
function get_pages( $args = array() ) {
global $wpdb;
$defaults = array(
'child_of' => 0, 'sort_order' => 'ASC',
'sort_column' => 'post_title', 'hierarchical' => 1,
'exclude' => array(), 'include' => array(),
'meta_key' => '', 'meta_value' => '',
'authors' => '', 'parent' => -1, 'exclude_tree' => array(),
'number' => '', 'offset' => 0,
'post_type' => 'page', 'post_status' => 'publish',
);
$r = wp_parse_args( $args, $defaults );
$number = (int) $r['number'];
$offset = (int) $r['offset'];
$child_of = (int) $r['child_of'];
$hierarchical = $r['hierarchical'];
$exclude = $r['exclude'];
$meta_key = $r['meta_key'];
$meta_value = $r['meta_value'];
$parent = $r['parent'];
$post_status = $r['post_status'];
// Make sure the post type is hierarchical.
$hierarchical_post_types = get_post_types( array( 'hierarchical' => true ) );
if ( ! in_array( $r['post_type'], $hierarchical_post_types ) ) {
return false;
}
if ( $parent > 0 && ! $child_of ) {
$hierarchical = false;
}
// Make sure we have a valid post status.
if ( ! is_array( $post_status ) ) {
$post_status = explode( ',', $post_status );
}
if ( array_diff( $post_status, get_post_stati() ) ) {
return false;
}
// $args can be whatever, only use the args defined in defaults to compute the key.
$key = md5( serialize( wp_array_slice_assoc( $r, array_keys( $defaults ) ) ) );
$last_changed = wp_cache_get( 'last_changed', 'posts' );
if ( ! $last_changed ) {
$last_changed = microtime();
wp_cache_set( 'last_changed', $last_changed, 'posts' );
}
$cache_key = "get_pages:$key:$last_changed";
if ( $cache = wp_cache_get( $cache_key, 'posts' ) ) {
// Convert to WP_Post instances.
$pages = array_map( 'get_post', $cache );
/** This filter is documented in wp-includes/post.php */
$pages = apply_filters( 'get_pages', $pages, $r );
return $pages;
}
$inclusions = '';
if ( ! empty( $r['include'] ) ) {
$child_of = 0; //ignore child_of, parent, exclude, meta_key, and meta_value params if using include
$parent = -1;
$exclude = '';
$meta_key = '';
$meta_value = '';
$hierarchical = false;
$incpages = wp_parse_id_list( $r['include'] );
if ( ! empty( $incpages ) ) {
$inclusions = ' AND ID IN (' . implode( ',', $incpages ) . ')';
}
}
$exclusions = '';
if ( ! empty( $exclude ) ) {
$expages = wp_parse_id_list( $exclude );
if ( ! empty( $expages ) ) {
$exclusions = ' AND ID NOT IN (' . implode( ',', $expages ) . ')';
}
}
$author_query = '';
if ( ! empty( $r['authors'] ) ) {
$post_authors = preg_split( '/[\s,]+/', $r['authors'] );
if ( ! empty( $post_authors ) ) {
foreach ( $post_authors as $post_author ) {
//Do we have an author id or an author login?
if ( 0 == intval($post_author) ) {
$post_author = get_user_by('login', $post_author);
if ( empty( $post_author ) ) {
continue;
}
if ( empty( $post_author->ID ) ) {
continue;
}
$post_author = $post_author->ID;
}
if ( '' == $author_query ) {
$author_query = $wpdb->prepare(' post_author = %d ', $post_author);
} else {
$author_query .= $wpdb->prepare(' OR post_author = %d ', $post_author);
}
}
if ( '' != $author_query ) {
$author_query = " AND ($author_query)";
}
}
}
$join = '';
$where = "$exclusions $inclusions ";
if ( '' !== $meta_key || '' !== $meta_value ) {
$join = " LEFT JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id )";
// meta_key and meta_value might be slashed
$meta_key = wp_unslash($meta_key);
$meta_value = wp_unslash($meta_value);
if ( '' !== $meta_key ) {
$where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s", $meta_key);
}
if ( '' !== $meta_value ) {
$where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_value = %s", $meta_value);
}
}
if ( is_array( $parent ) ) {
$post_parent__in = implode( ',', array_map( 'absint', (array) $parent ) );
if ( ! empty( $post_parent__in ) ) {
$where .= " AND post_parent IN ($post_parent__in)";
}
} elseif ( $parent >= 0 ) {
$where .= $wpdb->prepare(' AND post_parent = %d ', $parent);
}
if ( 1 == count( $post_status ) ) {
$where_post_type = $wpdb->prepare( "post_type = %s AND post_status = %s", $r['post_type'], reset( $post_status ) );
} else {
$post_status = implode( "', '", $post_status );
$where_post_type = $wpdb->prepare( "post_type = %s AND post_status IN ('$post_status')", $r['post_type'] );
}
$orderby_array = array();
$allowed_keys = array( 'author', 'post_author', 'date', 'post_date', 'title', 'post_title', 'name', 'post_name', 'modified',
'post_modified', 'modified_gmt', 'post_modified_gmt', 'menu_order', 'parent', 'post_parent',
'ID', 'rand', 'comment_count' );
foreach ( explode( ',', $r['sort_column'] ) as $orderby ) {
$orderby = trim( $orderby );
if ( ! in_array( $orderby, $allowed_keys ) ) {
continue;
}
switch ( $orderby ) {
case 'menu_order':
break;
case 'ID':
$orderby = "$wpdb->posts.ID";
break;
case 'rand':
$orderby = 'RAND()';
break;
case 'comment_count':
$orderby = "$wpdb->posts.comment_count";
break;
default:
if ( 0 === strpos( $orderby, 'post_' ) ) {
$orderby = "$wpdb->posts." . $orderby;
} else {
$orderby = "$wpdb->posts.post_" . $orderby;
}
}
$orderby_array[] = $orderby;
}
$sort_column = ! empty( $orderby_array ) ? implode( ',', $orderby_array ) : "$wpdb->posts.post_title";
$sort_order = strtoupper( $r['sort_order'] );
if ( '' !== $sort_order && ! in_array( $sort_order, array( 'ASC', 'DESC' ) ) ) {
$sort_order = 'ASC';
}
$query = "SELECT * FROM $wpdb->posts $join WHERE ($where_post_type) $where ";
$query .= $author_query;
$query .= " ORDER BY " . $sort_column . " " . $sort_order ;
if ( ! empty( $number ) ) {
$query .= ' LIMIT ' . $offset . ',' . $number;
}
$pages = $wpdb->get_results($query);
if ( empty($pages) ) {
/** This filter is documented in wp-includes/post.php */
$pages = apply_filters( 'get_pages', array(), $r );
return $pages;
}
// Sanitize before caching so it'll only get done once.
$num_pages = count($pages);
for ($i = 0; $i < $num_pages; $i++) {
$pages[$i] = sanitize_post($pages[$i], 'raw');
}
// Update cache.
update_post_cache( $pages );
if ( $child_of || $hierarchical ) {
$pages = get_page_children($child_of, $pages);
}
if ( ! empty( $r['exclude_tree'] ) ) {
$exclude = wp_parse_id_list( $r['exclude_tree'] );
foreach( $exclude as $id ) {
$children = get_page_children( $id, $pages );
foreach ( $children as $child ) {
$exclude[] = $child->ID;
}
}
$num_pages = count( $pages );
for ( $i = 0; $i < $num_pages; $i++ ) {
if ( in_array( $pages[$i]->ID, $exclude ) ) {
unset( $pages[$i] );
}
}
}
$page_structure = array();
foreach ( $pages as $page ) {
$page_structure[] = $page->ID;
}
wp_cache_set( $cache_key, $page_structure, 'posts' );
// Convert to WP_Post instances
$pages = array_map( 'get_post', $pages );
/**
* Filter the retrieved list of pages.
*
* @since 2.1.0
*
* @param array $pages List of pages to retrieve.
* @param array $r Array of get_pages() arguments.
*/
$pages = apply_filters( 'get_pages', $pages, $r );
return $pages;
}
//
// Attachment functions
//
/**
* Check if the attachment URI is local one and is really an attachment.
*
* @since 2.0.0
*
* @param string $url URL to check
* @return bool True on success, false on failure.
*/
function is_local_attachment($url) {
if (strpos($url, home_url()) === false)
return false;
if (strpos($url, home_url('/?attachment_id=')) !== false)
return true;
if ( $id = url_to_postid($url) ) {
$post = get_post($id);
if ( 'attachment' == $post->post_type )
return true;
}
return false;
}
/**
* Insert an attachment.
*
* If you set the 'ID' in the $args parameter, it will mean that you are
* updating and attempt to update the attachment. You can also set the
* attachment name or title by setting the key 'post_name' or 'post_title'.
*
* You can set the dates for the attachment manually by setting the 'post_date'
* and 'post_date_gmt' keys' values.
*
* By default, the comments will use the default settings for whether the
* comments are allowed. You can close them manually or keep them open by
* setting the value for the 'comment_status' key.
*
* @since 2.0.0
*
* @see wp_insert_post()
*
* @param string|array $args Arguments for inserting an attachment.
* @param string $file Optional. Filename.
* @param int $parent Optional. Parent post ID.
* @return int Attachment ID.
*/
function wp_insert_attachment( $args, $file = false, $parent = 0 ) {
$defaults = array(
'file' => $file,
'post_parent' => 0
);
$data = wp_parse_args( $args, $defaults );
if ( ! empty( $parent ) ) {
$data['post_parent'] = $parent;
}
$data['post_type'] = 'attachment';
return wp_insert_post( $data );
}
/**
* Trash or delete an attachment.
*
* When an attachment is permanently deleted, the file will also be removed.
* Deletion removes all post meta fields, taxonomy, comments, etc. associated
* with the attachment (except the main post).
*
* The attachment is moved to the trash instead of permanently deleted unless trash
* for media is disabled, item is already in the trash, or $force_delete is true.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $post_id Attachment ID.
* @param bool $force_delete Optional. Whether to bypass trash and force deletion.
* Default false.
* @return mixed False on failure. Post data on success.
*/
function wp_delete_attachment( $post_id, $force_delete = false ) {
global $wpdb;
if ( !$post = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $post_id) ) )
return $post;
if ( 'attachment' != $post->post_type )
return false;
if ( !$force_delete && EMPTY_TRASH_DAYS && MEDIA_TRASH && 'trash' != $post->post_status )
return wp_trash_post( $post_id );
delete_post_meta($post_id, '_wp_trash_meta_status');
delete_post_meta($post_id, '_wp_trash_meta_time');
$meta = wp_get_attachment_metadata( $post_id );
$backup_sizes = get_post_meta( $post->ID, '_wp_attachment_backup_sizes', true );
$file = get_attached_file( $post_id );
if ( is_multisite() )
delete_transient( 'dirsize_cache' );
/**
* Fires before an attachment is deleted, at the start of wp_delete_attachment().
*
* @since 2.0.0
*
* @param int $post_id Attachment ID.
*/
do_action( 'delete_attachment', $post_id );
wp_delete_object_term_relationships($post_id, array('category', 'post_tag'));
wp_delete_object_term_relationships($post_id, get_object_taxonomies($post->post_type));
// Delete all for any posts.
delete_metadata( 'post', null, '_thumbnail_id', $post_id, true );
$comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id ));
foreach ( $comment_ids as $comment_id )
wp_delete_comment( $comment_id, true );
$post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $post_id ));
foreach ( $post_meta_ids as $mid )
delete_metadata_by_mid( 'post', $mid );
/** This action is documented in wp-includes/post.php */
do_action( 'delete_post', $post_id );
$result = $wpdb->delete( $wpdb->posts, array( 'ID' => $post_id ) );
if ( ! $result ) {
return false;
}
/** This action is documented in wp-includes/post.php */
do_action( 'deleted_post', $post_id );
$uploadpath = wp_upload_dir();
if ( ! empty($meta['thumb']) ) {
// Don't delete the thumb if another attachment uses it.
if (! $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $wpdb->esc_like( $meta['thumb'] ) . '%', $post_id)) ) {
$thumbfile = str_replace(basename($file), $meta['thumb'], $file);
/** This filter is documented in wp-includes/functions.php */
$thumbfile = apply_filters( 'wp_delete_file', $thumbfile );
@ unlink( path_join($uploadpath['basedir'], $thumbfile) );
}
}
// Remove intermediate and backup images if there are any.
if ( isset( $meta['sizes'] ) && is_array( $meta['sizes'] ) ) {
foreach ( $meta['sizes'] as $size => $sizeinfo ) {
$intermediate_file = str_replace( basename( $file ), $sizeinfo['file'], $file );
/** This filter is documented in wp-includes/functions.php */
$intermediate_file = apply_filters( 'wp_delete_file', $intermediate_file );
@ unlink( path_join( $uploadpath['basedir'], $intermediate_file ) );
}
}
if ( is_array($backup_sizes) ) {
foreach ( $backup_sizes as $size ) {
$del_file = path_join( dirname($meta['file']), $size['file'] );
/** This filter is documented in wp-includes/functions.php */
$del_file = apply_filters( 'wp_delete_file', $del_file );
@ unlink( path_join($uploadpath['basedir'], $del_file) );
}
}
wp_delete_file( $file );
clean_post_cache( $post );
return $post;
}
/**
* Retrieve attachment meta field for attachment ID.
*
* @since 2.1.0
*
* @param int $post_id Attachment ID. Default 0.
* @param bool $unfiltered Optional. If true, filters are not run. Default false.
* @return string|bool Attachment meta field. False on failure.
*/
function wp_get_attachment_metadata( $post_id = 0, $unfiltered = false ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
$data = get_post_meta( $post->ID, '_wp_attachment_metadata', true );
if ( $unfiltered )
return $data;
/**
* Filter the attachment meta data.
*
* @since 2.1.0
*
* @param array|bool $data Array of meta data for the given attachment, or false
* if the object does not exist.
* @param int $post_id Attachment ID.
*/
return apply_filters( 'wp_get_attachment_metadata', $data, $post->ID );
}
/**
* Update metadata for an attachment.
*
* @since 2.1.0
*
* @param int $post_id Attachment ID.
* @param array $data Attachment data.
* @return int|bool False if $post is invalid.
*/
function wp_update_attachment_metadata( $post_id, $data ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
/**
* Filter the updated attachment meta data.
*
* @since 2.1.0
*
* @param array $data Array of updated attachment meta data.
* @param int $post_id Attachment ID.
*/
if ( $data = apply_filters( 'wp_update_attachment_metadata', $data, $post->ID ) )
return update_post_meta( $post->ID, '_wp_attachment_metadata', $data );
else
return delete_post_meta( $post->ID, '_wp_attachment_metadata' );
}
/**
* Retrieve the URL for an attachment.
*
* @since 2.1.0
*
* @param int $post_id Optional. Attachment ID. Default 0.
* @return string|bool Attachment URL, otherwise false.
*/
function wp_get_attachment_url( $post_id = 0 ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
if ( 'attachment' != $post->post_type )
return false;
$url = '';
// Get attached file.
if ( $file = get_post_meta( $post->ID, '_wp_attached_file', true) ) {
// Get upload directory.
if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) {
// Check that the upload base exists in the file location.
if ( 0 === strpos( $file, $uploads['basedir'] ) ) {
// Replace file location with url location.
$url = str_replace($uploads['basedir'], $uploads['baseurl'], $file);
} elseif ( false !== strpos($file, 'wp-content/uploads') ) {
$url = $uploads['baseurl'] . substr( $file, strpos($file, 'wp-content/uploads') + 18 );
} else {
// It's a newly-uploaded file, therefore $file is relative to the basedir.
$url = $uploads['baseurl'] . "/$file";
}
}
}
/*
* If any of the above options failed, Fallback on the GUID as used pre-2.7,
* not recommended to rely upon this.
*/
if ( empty($url) ) {
$url = get_the_guid( $post->ID );
}
// On SSL front-end, URLs should be HTTPS.
if ( is_ssl() && ! is_admin() && 'wp-login.php' !== $GLOBALS['pagenow'] ) {
$url = set_url_scheme( $url );
}
/**
* Filter the attachment URL.
*
* @since 2.1.0
*
* @param string $url URL for the given attachment.
* @param int $post_id Attachment ID.
*/
$url = apply_filters( 'wp_get_attachment_url', $url, $post->ID );
if ( empty( $url ) )
return false;
return $url;
}
/**
* Retrieve thumbnail for an attachment.
*
* @since 2.1.0
*
* @param int $post_id Optional. Attachment ID. Default 0.
* @return mixed False on failure. Thumbnail file path on success.
*/
function wp_get_attachment_thumb_file( $post_id = 0 ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
if ( !is_array( $imagedata = wp_get_attachment_metadata( $post->ID ) ) )
return false;
$file = get_attached_file( $post->ID );
if ( !empty($imagedata['thumb']) && ($thumbfile = str_replace(basename($file), $imagedata['thumb'], $file)) && file_exists($thumbfile) ) {
/**
* Filter the attachment thumbnail file path.
*
* @since 2.1.0
*
* @param string $thumbfile File path to the attachment thumbnail.
* @param int $post_id Attachment ID.
*/
return apply_filters( 'wp_get_attachment_thumb_file', $thumbfile, $post->ID );
}
return false;
}
/**
* Retrieve URL for an attachment thumbnail.
*
* @since 2.1.0
*
* @param int $post_id Optional. Attachment ID. Default 0.
* @return string|bool False on failure. Thumbnail URL on success.
*/
function wp_get_attachment_thumb_url( $post_id = 0 ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
if ( !$url = wp_get_attachment_url( $post->ID ) )
return false;
$sized = image_downsize( $post_id, 'thumbnail' );
if ( $sized )
return $sized[0];
if ( !$thumb = wp_get_attachment_thumb_file( $post->ID ) )
return false;
$url = str_replace(basename($url), basename($thumb), $url);
/**
* Filter the attachment thumbnail URL.
*
* @since 2.1.0
*
* @param string $url URL for the attachment thumbnail.
* @param int $post_id Attachment ID.
*/
return apply_filters( 'wp_get_attachment_thumb_url', $url, $post->ID );
}
/**
* Verifies an attachment is of a given type.
*
* @since 4.2.0
*
* @param string $type Attachment type. Accepts 'image', 'audio', or 'video'.
* @param int|WP_Post $post_id Optional. Attachment ID. Default 0.
* @return bool True if one of the accepted types, false otherwise.
*/
function wp_attachment_is( $type, $post_id = 0 ) {
if ( ! $post = get_post( $post_id ) ) {
return false;
}
if ( ! $file = get_attached_file( $post->ID ) ) {
return false;
}
if ( 0 === strpos( $post->post_mime_type, $type . '/' ) ) {
return true;
}
$check = wp_check_filetype( $file );
if ( empty( $check['ext'] ) ) {
return false;
}
$ext = $check['ext'];
if ( 'import' !== $post->post_mime_type ) {
return $type === $ext;
}
switch ( $type ) {
case 'image':
$image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' );
return in_array( $ext, $image_exts );
case 'audio':
return in_array( $ext, wp_get_audio_extensions() );
case 'video':
return in_array( $ext, wp_get_video_extensions() );
default:
return $type === $ext;
}
}
/**
* Checks if the attachment is an image.
*
* @since 2.1.0
* @since 4.2.0 Modified into wrapper for wp_attachment_is()
*
* @param int|WP_Post $post Optional. Attachment ID. Default 0.
* @return bool Whether the attachment is an image.
*/
function wp_attachment_is_image( $post = 0 ) {
return wp_attachment_is( 'image', $post );
}
/**
* Retrieve the icon for a MIME type.
*
* @since 2.1.0
*
* @param string|int $mime MIME type or attachment ID.
* @return string|bool Icon, false otherwise.
*/
function wp_mime_type_icon( $mime = 0 ) {
if ( !is_numeric($mime) )
$icon = wp_cache_get("mime_type_icon_$mime");
$post_id = 0;
if ( empty($icon) ) {
$post_mimes = array();
if ( is_numeric($mime) ) {
$mime = (int) $mime;
if ( $post = get_post( $mime ) ) {
$post_id = (int) $post->ID;
$ext = preg_replace('/^.+?\.([^.]+)$/', '$1', $post->guid);
if ( !empty($ext) ) {
$post_mimes[] = $ext;
if ( $ext_type = wp_ext2type( $ext ) )
$post_mimes[] = $ext_type;
}
$mime = $post->post_mime_type;
} else {
$mime = 0;
}
} else {
$post_mimes[] = $mime;
}
$icon_files = wp_cache_get('icon_files');
if ( !is_array($icon_files) ) {
/**
* Filter the icon directory path.
*
* @since 2.0.0
*
* @param string $path Icon directory absolute path.
*/
$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );
/**
* Filter the icon directory URI.
*
* @since 2.0.0
*
* @param string $uri Icon directory URI.
*/
$icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) );
/**
* Filter the list of icon directory URIs.
*
* @since 2.5.0
*
* @param array $uris List of icon directory URIs.
*/
$dirs = apply_filters( 'icon_dirs', array( $icon_dir => $icon_dir_uri ) );
$icon_files = array();
while ( $dirs ) {
$keys = array_keys( $dirs );
$dir = array_shift( $keys );
$uri = array_shift($dirs);
if ( $dh = opendir($dir) ) {
while ( false !== $file = readdir($dh) ) {
$file = basename($file);
if ( substr($file, 0, 1) == '.' )
continue;
if ( !in_array(strtolower(substr($file, -4)), array('.png', '.gif', '.jpg') ) ) {
if ( is_dir("$dir/$file") )
$dirs["$dir/$file"] = "$uri/$file";
continue;
}
$icon_files["$dir/$file"] = "$uri/$file";
}
closedir($dh);
}
}
wp_cache_add( 'icon_files', $icon_files, 'default', 600 );
}
$types = array();
// Icon basename - extension = MIME wildcard.
foreach ( $icon_files as $file => $uri )
$types[ preg_replace('/^([^.]*).*$/', '$1', basename($file)) ] =& $icon_files[$file];
if ( ! empty($mime) ) {
$post_mimes[] = substr($mime, 0, strpos($mime, '/'));
$post_mimes[] = substr($mime, strpos($mime, '/') + 1);
$post_mimes[] = str_replace('/', '_', $mime);
}
$matches = wp_match_mime_types(array_keys($types), $post_mimes);
$matches['default'] = array('default');
foreach ( $matches as $match => $wilds ) {
if ( isset($types[$wilds[0]])) {
$icon = $types[$wilds[0]];
if ( !is_numeric($mime) )
wp_cache_add("mime_type_icon_$mime", $icon);
break;
}
}
}
/**
* Filter the mime type icon.
*
* @since 2.1.0
*
* @param string $icon Path to the mime type icon.
* @param string $mime Mime type.
* @param int $post_id Attachment ID. Will equal 0 if the function passed
* the mime type.
*/
return apply_filters( 'wp_mime_type_icon', $icon, $mime, $post_id );
}
/**
* Check for changed slugs for published post objects and save the old slug.
*
* The function is used when a post object of any type is updated,
* by comparing the current and previous post objects.
*
* If the slug was changed and not already part of the old slugs then it will be
* added to the post meta field ('_wp_old_slug') for storing old slugs for that
* post.
*
* The most logically usage of this function is redirecting changed post objects, so
* that those that linked to an changed post will be redirected to the new post.
*
* @since 2.1.0
*
* @param int $post_id Post ID.
* @param WP_Post $post The Post Object
* @param WP_Post $post_before The Previous Post Object
* @return int Same as $post_id
*/
function wp_check_for_changed_slugs( $post_id, $post, $post_before ) {
// Don't bother if it hasnt changed.
if ( $post->post_name == $post_before->post_name )
return;
// We're only concerned with published, non-hierarchical objects.
if ( $post->post_status != 'publish' || is_post_type_hierarchical( $post->post_type ) )
return;
$old_slugs = (array) get_post_meta($post_id, '_wp_old_slug');
// If we haven't added this old slug before, add it now.
if ( !empty( $post_before->post_name ) && !in_array($post_before->post_name, $old_slugs) )
add_post_meta($post_id, '_wp_old_slug', $post_before->post_name);
// If the new slug was used previously, delete it from the list.
if ( in_array($post->post_name, $old_slugs) )
delete_post_meta($post_id, '_wp_old_slug', $post->post_name);
}
/**
* Retrieve the private post SQL based on capability.
*
* This function provides a standardized way to appropriately select on the
* post_status of a post type. The function will return a piece of SQL code
* that can be added to a WHERE clause; this SQL is constructed to allow all
* published posts, and all private posts to which the user has access.
*
* @since 2.2.0
*
* @param string $post_type Post type. Currently only supports 'post' or 'page'.
* @return string SQL code that can be added to a where clause.
*/
function get_private_posts_cap_sql( $post_type ) {
return get_posts_by_author_sql( $post_type, false );
}
/**
* Retrieve the post SQL based on capability, author, and type.
*
* @since 3.0.0
*
* @see get_private_posts_cap_sql()
*
* @param string $post_type Post type.
* @param bool $full Optional. Returns a full WHERE statement instead of just
* an 'andalso' term. Default true.
* @param int $post_author Optional. Query posts having a single author ID. Default null.
* @param bool $public_only Optional. Only return public posts. Skips cap checks for
* $current_user. Default false.
* @return string SQL WHERE code that can be added to a query.
*/
function get_posts_by_author_sql( $post_type, $full = true, $post_author = null, $public_only = false ) {
global $wpdb;
// Private posts.
$post_type_obj = get_post_type_object( $post_type );
if ( ! $post_type_obj )
return $full ? 'WHERE 1 = 0' : ' 1 = 0 ';
/**
* Filter the capability to read private posts for a custom post type
* when generating SQL for getting posts by author.
*
* @since 2.2.0
* @deprecated 3.2.0 The hook transitioned from "somewhat useless" to "totally useless".
*
* @param string $cap Capability.
*/
if ( ! $cap = apply_filters( 'pub_priv_sql_capability', '' ) ) {
$cap = $post_type_obj->cap->read_private_posts;
}
$sql = $wpdb->prepare( 'post_type = %s', $post_type );
if ( null !== $post_author ) {
$sql .= $wpdb->prepare( ' AND post_author = %d', $post_author );
}
// Only need to check the cap if $public_only is false.
$post_status_sql = "post_status = 'publish'";
if ( false === $public_only ) {
if ( current_user_can( $cap ) ) {
// Does the user have the capability to view private posts? Guess so.
$post_status_sql .= " OR post_status = 'private'";
} elseif ( is_user_logged_in() ) {
// Users can view their own private posts.
$id = get_current_user_id();
if ( null === $post_author || ! $full ) {
$post_status_sql .= " OR post_status = 'private' AND post_author = $id";
} elseif ( $id == (int) $post_author ) {
$post_status_sql .= " OR post_status = 'private'";
} // else none
} // else none
}
$sql .= " AND ($post_status_sql)";
if ( $full ) {
$sql = 'WHERE ' . $sql;
}
return $sql;
}
/**
* Retrieve the date that the last post was published.
*
* The server timezone is the default and is the difference between GMT and
* server time. The 'blog' value is the date when the last post was posted. The
* 'gmt' is when the last post was posted in GMT formatted date.
*
* @since 0.71
*
* @param string $timezone The location to get the time. Accepts 'gmt', 'blog',
* or 'server'. Default 'server'.
* @return string The date of the last post.
*/
function get_lastpostdate( $timezone = 'server' ) {
/**
* Filter the date the last post was published.
*
* @since 2.3.0
*
* @param string $date Date the last post was published. Likely values are 'gmt',
* 'blog', or 'server'.
* @param string $timezone Location to use for getting the post published date.
*/
return apply_filters( 'get_lastpostdate', _get_last_post_time( $timezone, 'date' ), $timezone );
}
/**
* Get the timestamp of the last time any post was modified.
*
* The server timezone is the default and is the difference between GMT and
* server time. The 'blog' value is just when the last post was modified. The
* 'gmt' is when the last post was modified in GMT time.
*
* @since 1.2.0
*
* @param string $timezone Optional. The timezone for the timestamp. Uses the server's internal timezone.
* Accepts 'server', 'blog', 'gmt'. or 'server'. 'server' uses the server's
* internal timezone. 'blog' uses the `post_modified` field, which proxies
* to the timezone set for the site. 'gmt' uses the `post_modified_gmt` field.
* Default 'server'.
* @return string The timestamp.
*/
function get_lastpostmodified( $timezone = 'server' ) {
$lastpostmodified = _get_last_post_time( $timezone, 'modified' );
$lastpostdate = get_lastpostdate($timezone);
if ( $lastpostdate > $lastpostmodified )
$lastpostmodified = $lastpostdate;
/**
* Filter the date the last post was modified.
*
* @since 2.3.0
*
* @param string $lastpostmodified Date the last post was modified.
* @param string $timezone Location to use for getting the post modified date.
* See {@see get_lastpostmodified()} for accepted `$timezone` values.
*/
return apply_filters( 'get_lastpostmodified', $lastpostmodified, $timezone );
}
/**
* Get the timestamp of the last time any post was modified or published.
*
* @since 3.1.0
* @access private
*
* @param string $timezone The timezone for the timestamp. See {@see get_lastpostmodified()}
* for information on accepted values.
* @param string $field Post field to check. Accepts 'date' or 'modified'.
* @return string The timestamp.
*/
function _get_last_post_time( $timezone, $field ) {
global $wpdb;
if ( !in_array( $field, array( 'date', 'modified' ) ) )
return false;
$timezone = strtolower( $timezone );
$key = "lastpost{$field}:$timezone";
$date = wp_cache_get( $key, 'timeinfo' );
if ( !$date ) {
$add_seconds_server = date('Z');
$post_types = get_post_types( array( 'public' => true ) );
array_walk( $post_types, array( &$wpdb, 'escape_by_ref' ) );
$post_types = "'" . implode( "', '", $post_types ) . "'";
switch ( $timezone ) {
case 'gmt':
$date = $wpdb->get_var("SELECT post_{$field}_gmt FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1");
break;
case 'blog':
$date = $wpdb->get_var("SELECT post_{$field} FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1");
break;
case 'server':
$date = $wpdb->get_var("SELECT DATE_ADD(post_{$field}_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1");
break;
}
if ( $date )
wp_cache_set( $key, $date, 'timeinfo' );
}
return $date;
}
/**
* Updates posts in cache.
*
* @since 1.5.1
*
* @param array $posts Array of post objects, passed by reference.
*/
function update_post_cache( &$posts ) {
if ( ! $posts )
return;
foreach ( $posts as $post )
wp_cache_add( $post->ID, $post, 'posts' );
}
/**
* Will clean the post in the cache.
*
* Cleaning means delete from the cache of the post. Will call to clean the term
* object cache associated with the post ID.
*
* This function not run if $_wp_suspend_cache_invalidation is not empty. See
* wp_suspend_cache_invalidation().
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|WP_Post $post Post ID or post object to remove from the cache.
*/
function clean_post_cache( $post ) {
global $_wp_suspend_cache_invalidation, $wpdb;
if ( ! empty( $_wp_suspend_cache_invalidation ) )
return;
$post = get_post( $post );
if ( empty( $post ) )
return;
wp_cache_delete( $post->ID, 'posts' );
wp_cache_delete( $post->ID, 'post_meta' );
clean_object_term_cache( $post->ID, $post->post_type );
wp_cache_delete( 'wp_get_archives', 'general' );
/**
* Fires immediately after the given post's cache is cleaned.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
* @param WP_Post $post Post object.
*/
do_action( 'clean_post_cache', $post->ID, $post );
if ( 'page' == $post->post_type ) {
wp_cache_delete( 'all_page_ids', 'posts' );
/**
* Fires immediately after the given page's cache is cleaned.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
*/
do_action( 'clean_page_cache', $post->ID );
}
wp_cache_set( 'last_changed', microtime(), 'posts' );
}
/**
* Call major cache updating functions for list of Post objects.
*
* @since 1.5.0
*
* @param array $posts Array of Post objects
* @param string $post_type Optional. Post type. Default 'post'.
* @param bool $update_term_cache Optional. Whether to update the term cache. Default true.
* @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true.
*/
function update_post_caches( &$posts, $post_type = 'post', $update_term_cache = true, $update_meta_cache = true ) {
// No point in doing all this work if we didn't match any posts.
if ( !$posts )
return;
update_post_cache($posts);
$post_ids = array();
foreach ( $posts as $post )
$post_ids[] = $post->ID;
if ( ! $post_type )
$post_type = 'any';
if ( $update_term_cache ) {
if ( is_array($post_type) ) {
$ptypes = $post_type;
} elseif ( 'any' == $post_type ) {
$ptypes = array();
// Just use the post_types in the supplied posts.
foreach ( $posts as $post ) {
$ptypes[] = $post->post_type;
}
$ptypes = array_unique($ptypes);
} else {
$ptypes = array($post_type);
}
if ( ! empty($ptypes) )
update_object_term_cache($post_ids, $ptypes);
}
if ( $update_meta_cache )
update_postmeta_cache($post_ids);
}
/**
* Updates metadata cache for list of post IDs.
*
* Performs SQL query to retrieve the metadata for the post IDs and updates the
* metadata cache for the posts. Therefore, the functions, which call this
* function, do not need to perform SQL queries on their own.
*
* @since 2.1.0
*
* @param array $post_ids List of post IDs.
* @return bool|array Returns false if there is nothing to update or an array
* of metadata.
*/
function update_postmeta_cache( $post_ids ) {
return update_meta_cache('post', $post_ids);
}
/**
* Will clean the attachment in the cache.
*
* Cleaning means delete from the cache. Optionally will clean the term
* object cache associated with the attachment ID.
*
* This function will not run if $_wp_suspend_cache_invalidation is not empty.
*
* @since 3.0.0
*
* @see wp_suspend_cache_invalidation()
*
* @param int $id The attachment ID in the cache to clean.
* @param bool $clean_terms Optional. Whether to clean terms cache. Default false.
*/
function clean_attachment_cache( $id, $clean_terms = false ) {
global $_wp_suspend_cache_invalidation;
if ( !empty($_wp_suspend_cache_invalidation) )
return;
$id = (int) $id;
wp_cache_delete($id, 'posts');
wp_cache_delete($id, 'post_meta');
if ( $clean_terms )
clean_object_term_cache($id, 'attachment');
/**
* Fires after the given attachment's cache is cleaned.
*
* @since 3.0.0
*
* @param int $id Attachment ID.
*/
do_action( 'clean_attachment_cache', $id );
}
//
// Hooks
//
/**
* Hook for managing future post transitions to published.
*
* @since 2.3.0
* @access private
*
* @see wp_clear_scheduled_hook()
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $new_status New post status.
* @param string $old_status Previous post status.
* @param WP_Post $post Post object.
*/
function _transition_post_status( $new_status, $old_status, $post ) {
global $wpdb;
if ( $old_status != 'publish' && $new_status == 'publish' ) {
// Reset GUID if transitioning to publish and it is empty.
if ( '' == get_the_guid($post->ID) )
$wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post->ID ) ), array( 'ID' => $post->ID ) );
/**
* Fires when a post's status is transitioned from private to published.
*
* @since 1.5.0
* @deprecated 2.3.0 Use 'private_to_publish' instead.
*
* @param int $post_id Post ID.
*/
do_action('private_to_published', $post->ID);
}
// If published posts changed clear the lastpostmodified cache.
if ( 'publish' == $new_status || 'publish' == $old_status) {
foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) {
wp_cache_delete( "lastpostmodified:$timezone", 'timeinfo' );
wp_cache_delete( "lastpostdate:$timezone", 'timeinfo' );
}
}
if ( $new_status !== $old_status ) {
wp_cache_delete( _count_posts_cache_key( $post->post_type ), 'counts' );
wp_cache_delete( _count_posts_cache_key( $post->post_type, 'readable' ), 'counts' );
}
// Always clears the hook in case the post status bounced from future to draft.
wp_clear_scheduled_hook('publish_future_post', array( $post->ID ) );
}
/**
* Hook used to schedule publication for a post marked for the future.
*
* The $post properties used and must exist are 'ID' and 'post_date_gmt'.
*
* @since 2.3.0
* @access private
*
* @param int $deprecated Not used. Can be set to null. Never implemented. Not marked
* as deprecated with _deprecated_argument() as it conflicts with
* wp_transition_post_status() and the default filter for
* {@see _future_post_hook()}.
* @param WP_Post $post Post object.
*/
function _future_post_hook( $deprecated, $post ) {
wp_clear_scheduled_hook( 'publish_future_post', array( $post->ID ) );
wp_schedule_single_event( strtotime( get_gmt_from_date( $post->post_date ) . ' GMT') , 'publish_future_post', array( $post->ID ) );
}
/**
* Hook to schedule pings and enclosures when a post is published.
*
* Uses XMLRPC_REQUEST and WP_IMPORTING constants.
*
* @since 2.3.0
* @access private
*
* @param int $post_id The ID in the database table of the post being published.
*/
function _publish_post_hook( $post_id ) {
if ( defined( 'XMLRPC_REQUEST' ) ) {
/**
* Fires when _publish_post_hook() is called during an XML-RPC request.
*
* @since 2.1.0
*
* @param int $post_id Post ID.
*/
do_action( 'xmlrpc_publish_post', $post_id );
}
if ( defined('WP_IMPORTING') )
return;
if ( get_option('default_pingback_flag') )
add_post_meta( $post_id, '_pingme', '1' );
add_post_meta( $post_id, '_encloseme', '1' );
wp_schedule_single_event(time(), 'do_pings');
}
/**
* Return the post's parent's post_ID
*
* @since 3.1.0
*
* @param int $post_ID
*
* @return int|bool Post parent ID, otherwise false.
*/
function wp_get_post_parent_id( $post_ID ) {
$post = get_post( $post_ID );
if ( !$post || is_wp_error( $post ) )
return false;
return (int) $post->post_parent;
}
/**
* Check the given subset of the post hierarchy for hierarchy loops.
*
* Prevents loops from forming and breaks those that it finds. Attached
* to the 'wp_insert_post_parent' filter.
*
* @since 3.1.0
*
* @see wp_find_hierarchy_loop()
*
* @param int $post_parent ID of the parent for the post we're checking.
* @param int $post_ID ID of the post we're checking.
* @return int The new post_parent for the post, 0 otherwise.
*/
function wp_check_post_hierarchy_for_loops( $post_parent, $post_ID ) {
// Nothing fancy here - bail.
if ( !$post_parent )
return 0;
// New post can't cause a loop.
if ( empty( $post_ID ) )
return $post_parent;
// Can't be its own parent.
if ( $post_parent == $post_ID )
return 0;
// Now look for larger loops.
if ( !$loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_ID, $post_parent ) )
return $post_parent; // No loop
// Setting $post_parent to the given value causes a loop.
if ( isset( $loop[$post_ID] ) )
return 0;
// There's a loop, but it doesn't contain $post_ID. Break the loop.
foreach ( array_keys( $loop ) as $loop_member )
wp_update_post( array( 'ID' => $loop_member, 'post_parent' => 0 ) );
return $post_parent;
}
/**
* Set a post thumbnail.
*
* @since 3.1.0
*
* @param int|WP_Post $post Post ID or post object where thumbnail should be attached.
* @param int $thumbnail_id Thumbnail to attach.
* @return bool True on success, false on failure.
*/
function set_post_thumbnail( $post, $thumbnail_id ) {
$post = get_post( $post );
$thumbnail_id = absint( $thumbnail_id );
if ( $post && $thumbnail_id && get_post( $thumbnail_id ) ) {
if ( wp_get_attachment_image( $thumbnail_id, 'thumbnail' ) )
return update_post_meta( $post->ID, '_thumbnail_id', $thumbnail_id );
else
return delete_post_meta( $post->ID, '_thumbnail_id' );
}
return false;
}
/**
* Remove a post thumbnail.
*
* @since 3.3.0
*
* @param int|WP_Post $post Post ID or post object where thumbnail should be removed from.
* @return bool True on success, false on failure.
*/
function delete_post_thumbnail( $post ) {
$post = get_post( $post );
if ( $post )
return delete_post_meta( $post->ID, '_thumbnail_id' );
return false;
}
/**
* Delete auto-drafts for new posts that are > 7 days old.
*
* @since 3.4.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function wp_delete_auto_drafts() {
global $wpdb;
// Cleanup old auto-drafts more than 7 days old.
$old_posts = $wpdb->get_col( "SELECT ID FROM $wpdb->posts WHERE post_status = 'auto-draft' AND DATE_SUB( NOW(), INTERVAL 7 DAY ) > post_date" );
foreach ( (array) $old_posts as $delete ) {
// Force delete.
wp_delete_post( $delete, true );
}
}
/**
* Update the custom taxonomies' term counts when a post's status is changed.
*
* For example, default posts term counts (for custom taxonomies) don't include
* private / draft posts.
*
* @since 3.3.0
* @access private
*
* @param string $new_status New post status.
* @param string $old_status Old post status.
* @param WP_Post $post Post object.
*/
function _update_term_count_on_transition_post_status( $new_status, $old_status, $post ) {
// Update counts for the post's terms.
foreach ( (array) get_object_taxonomies( $post->post_type ) as $taxonomy ) {
$tt_ids = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'tt_ids' ) );
wp_update_term_count( $tt_ids, $taxonomy );
}
}
/**
* Adds any posts from the given ids to the cache that do not already exist in cache
*
* @since 3.4.0
* @access private
*
* @see update_post_caches()
*
* @param array $ids ID list
* @param bool $update_term_cache Optional. Whether to update the term cache. Default true.
* @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true.
*/
function _prime_post_caches( $ids, $update_term_cache = true, $update_meta_cache = true ) {
global $wpdb;
$non_cached_ids = _get_non_cached_ids( $ids, 'posts' );
if ( !empty( $non_cached_ids ) ) {
$fresh_posts = $wpdb->get_results( sprintf( "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE ID IN (%s)", join( ",", $non_cached_ids ) ) );
update_post_caches( $fresh_posts, 'any', $update_term_cache, $update_meta_cache );
}
}
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