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<?php
// $Id: node.pages.inc,v 1.28.2.1 2008/02/27 19:44:44 goba Exp $
/**
* @file
* Page callbacks for adding, editing, deleting, and revisions management for content.
*/
/**
* Menu callback; presents the node editing form, or redirects to delete confirmation.
*/
function node_page_edit($node) {
drupal_set_title(check_plain($node->title));
return drupal_get_form($node->type .'_node_form', $node);
}
function node_add_page() {
$item = menu_get_item();
$content = system_admin_menu_block($item);
return theme('node_add_list', $content);
}
/**
* Display the list of available node types for node creation.
*
* @ingroup themeable
*/
function theme_node_add_list($content) {
$output = '';
if ($content) {
$output = '<dl class="node-type-list">';
foreach ($content as $item) {
$output .= '<dt>'. l($item['title'], $item['href'], $item['options']) .'</dt>';
$output .= '<dd>'. filter_xss_admin($item['description']) .'</dd>';
}
$output .= '</dl>';
}
return $output;
}
/**
* Present a node submission form or a set of links to such forms.
*/
function node_add($type) {
global $user;
$types = node_get_types();
$type = isset($type) ? str_replace('-', '_', $type) : NULL;
// If a node type has been specified, validate its existence.
if (isset($types[$type]) && node_access('create', $type)) {
// Initialize settings:
$node = array('uid' => $user->uid, 'name' => (isset($user->name) ? $user->name : ''), 'type' => $type, 'language' => '');
drupal_set_title(t('Create @name', array('@name' => $types[$type]->name)));
$output = drupal_get_form($type .'_node_form', $node);
}
return $output;
}
function node_form_validate($form, &$form_state) {
node_validate($form_state['values'], $form);
}
function node_object_prepare(&$node) {
// Set up default values, if required.
$node_options = variable_get('node_options_'. $node->type, array('status', 'promote'));
// If this is a new node, fill in the default values.
if (!isset($node->nid)) {
foreach (array('status', 'promote', 'sticky') as $key) {
$node->$key = in_array($key, $node_options);
}
global $user;
$node->uid = $user->uid;
$node->created = time();
}
else {
$node->date = format_date($node->created, 'custom', 'Y-m-d H:i:s O');
}
// Always use the default revision setting.
$node->revision = in_array('revision', $node_options);
node_invoke($node, 'prepare');
node_invoke_nodeapi($node, 'prepare');
}
/**
* Generate the node add/edit form array.
*/
function node_form(&$form_state, $node) {
global $user;
if (isset($form_state['node'])) {
$node = $form_state['node'] + (array)$node;
}
if (isset($form_state['node_preview'])) {
$form['#prefix'] = $form_state['node_preview'];
}
$node = (object)$node;
foreach (array('body', 'title', 'format') as $key) {
if (!isset($node->$key)) {
$node->$key = NULL;
}
}
if (!isset($form_state['node_preview'])) {
node_object_prepare($node);
}
else {
$node->build_mode = NODE_BUILD_PREVIEW;
}
// Set the id of the top-level form tag
$form['#id'] = 'node-form';
// Basic node information.
// These elements are just values so they are not even sent to the client.
foreach (array('nid', 'vid', 'uid', 'created', 'type', 'language') as $key) {
$form[$key] = array(
'#type' => 'value',
'#value' => isset($node->$key) ? $node->$key : NULL,
);
}
// Changed must be sent to the client, for later overwrite error checking.
$form['changed'] = array(
'#type' => 'hidden',
'#default_value' => isset($node->changed) ? $node->changed : NULL,
);
// Get the node-specific bits.
if ($extra = node_invoke($node, 'form', $form_state)) {
$form = array_merge_recursive($form, $extra);
}
if (!isset($form['title']['#weight'])) {
$form['title']['#weight'] = -5;
}
$form['#node'] = $node;
// Add a log field if the "Create new revision" option is checked, or if the
// current user has the ability to check that option.
if (!empty($node->revision) || user_access('administer nodes')) {
$form['revision_information'] = array(
'#type' => 'fieldset',
'#title' => t('Revision information'),
'#collapsible' => TRUE,
// Collapsed by default when "Create new revision" is unchecked
'#collapsed' => !$node->revision,
'#weight' => 20,
);
$form['revision_information']['revision'] = array(
'#access' => user_access('administer nodes'),
'#type' => 'checkbox',
'#title' => t('Create new revision'),
'#default_value' => $node->revision,
);
$form['revision_information']['log'] = array(
'#type' => 'textarea',
'#title' => t('Log message'),
'#rows' => 2,
'#description' => t('An explanation of the additions or updates being made to help other authors understand your motivations.'),
);
}
// Node author information for administrators
$form['author'] = array(
'#type' => 'fieldset',
'#access' => user_access('administer nodes'),
'#title' => t('Authoring information'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
'#weight' => 20,
);
$form['author']['name'] = array(
'#type' => 'textfield',
'#title' => t('Authored by'),
'#maxlength' => 60,
'#autocomplete_path' => 'user/autocomplete',
'#default_value' => $node->name ? $node->name : '',
'#weight' => -1,
'#description' => t('Leave blank for %anonymous.', array('%anonymous' => variable_get('anonymous', t('Anonymous')))),
);
$form['author']['date'] = array(
'#type' => 'textfield',
'#title' => t('Authored on'),
'#maxlength' => 25,
'#description' => t('Format: %time. Leave blank to use the time of form submission.', array('%time' => !empty($node->date) ? $node->date : format_date($node->created, 'custom', 'Y-m-d H:i:s O'))),
);
if (isset($node->date)) {
$form['author']['date']['#default_value'] = $node->date;
}
// Node options for administrators
$form['options'] = array(
'#type' => 'fieldset',
'#access' => user_access('administer nodes'),
'#title' => t('Publishing options'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
'#weight' => 25,
);
$form['options']['status'] = array(
'#type' => 'checkbox',
'#title' => t('Published'),
'#default_value' => $node->status,
);
$form['options']['promote'] = array(
'#type' => 'checkbox',
'#title' => t('Promoted to front page'),
'#default_value' => $node->promote,
);
$form['options']['sticky'] = array(
'#type' => 'checkbox',
'#title' => t('Sticky at top of lists'),
'#default_value' => $node->sticky,
);
// These values are used when the user has no administrator access.
foreach (array('uid', 'created') as $key) {
$form[$key] = array(
'#type' => 'value',
'#value' => $node->$key,
);
}
// Add the buttons.
$form['buttons'] = array();
$form['buttons']['submit'] = array(
'#type' => 'submit',
'#value' => t('Save'),
'#weight' => 5,
'#submit' => array('node_form_submit'),
);
$form['buttons']['preview'] = array(
'#type' => 'submit',
'#value' => t('Preview'),
'#weight' => 10,
'#submit' => array('node_form_build_preview'),
);
if (!empty($node->nid) && node_access('delete', $node)) {
$form['buttons']['delete'] = array(
'#type' => 'submit',
'#value' => t('Delete'),
'#weight' => 15,
'#submit' => array('node_form_delete_submit'),
);
}
$form['#validate'][] = 'node_form_validate';
$form['#theme'] = array($node->type .'_node_form', 'node_form');
return $form;
}
/**
* Return a node body field, with format and teaser.
*/
function node_body_field(&$node, $label, $word_count) {
// Check if we need to restore the teaser at the beginning of the body.
$include = !isset($node->teaser) || ($node->teaser == substr($node->body, 0, strlen($node->teaser)));
$form = array(
'#after_build' => array('node_teaser_js', 'node_teaser_include_verify'));
$form['#prefix'] = '<div class="body-field-wrapper">';
$form['#suffix'] = '</div>';
$form['teaser_js'] = array(
'#type' => 'textarea',
'#rows' => 10,
'#teaser' => 'edit-body',
'#teaser_checkbox' => 'edit-teaser-include',
'#disabled' => TRUE,
);
$form['teaser_include'] = array(
'#type' => 'checkbox',
'#title' => t('Show summary in full view'),
'#default_value' => $include,
'#prefix' => '<div class="teaser-checkbox">',
'#suffix' => '</div>',
);
$form['body'] = array(
'#type' => 'textarea',
'#title' => check_plain($label),
'#default_value' => $include ? $node->body : ($node->teaser . $node->body),
'#rows' => 20,
'#required' => ($word_count > 0),
);
$form['format'] = filter_form($node->format);
return $form;
}
/**
* Button sumit function: handle the 'Delete' button on the node form.
*/
function node_form_delete_submit($form, &$form_state) {
$destination = '';
if (isset($_REQUEST['destination'])) {
$destination = drupal_get_destination();
unset($_REQUEST['destination']);
}
$node = $form['#node'];
$form_state['redirect'] = array('node/'. $node->nid .'/delete', $destination);
}
function node_form_build_preview($form, &$form_state) {
$node = node_form_submit_build_node($form, $form_state);
$form_state['node_preview'] = node_preview($node);
}
/**
* Present a node submission form.
*
* @ingroup themeable
*/
function theme_node_form($form) {
$output = "\n<div class=\"node-form\">\n";
// Admin form fields and submit buttons must be rendered first, because
// they need to go to the bottom of the form, and so should not be part of
// the catch-all call to drupal_render().
$admin = '';
if (isset($form['author'])) {
$admin .= " <div class=\"authored\">\n";
$admin .= drupal_render($form['author']);
$admin .= " </div>\n";
}
if (isset($form['options'])) {
$admin .= " <div class=\"options\">\n";
$admin .= drupal_render($form['options']);
$admin .= " </div>\n";
}
$buttons = drupal_render($form['buttons']);
// Everything else gets rendered here, and is displayed before the admin form
// field and the submit buttons.
$output .= " <div class=\"standard\">\n";
$output .= drupal_render($form);
$output .= " </div>\n";
if (!empty($admin)) {
$output .= " <div class=\"admin\">\n";
$output .= $admin;
$output .= " </div>\n";
}
$output .= $buttons;
$output .= "</div>\n";
return $output;
}
/**
* Generate a node preview.
*/
function node_preview($node) {
if (node_access('create', $node) || node_access('update', $node)) {
// Load the user's name when needed.
if (isset($node->name)) {
// The use of isset() is mandatory in the context of user IDs, because
// user ID 0 denotes the anonymous user.
if ($user = user_load(array('name' => $node->name))) {
$node->uid = $user->uid;
$node->picture = $user->picture;
}
else {
$node->uid = 0; // anonymous user
}
}
else if ($node->uid) {
$user = user_load(array('uid' => $node->uid));
$node->name = $user->name;
$node->picture = $user->picture;
}
$node->changed = time();
// Extract a teaser, if it hasn't been set (e.g. by a module-provided
// 'teaser' form item).
if (!isset($node->teaser)) {
$node->teaser = empty($node->body) ? '' : node_teaser($node->body, $node->format);
// Chop off the teaser from the body if needed.
if (!$node->teaser_include && $node->teaser == substr($node->body, 0, strlen($node->teaser))) {
$node->body = substr($node->body, strlen($node->teaser));
}
}
// Display a preview of the node.
// Previewing alters $node so it needs to be cloned.
if (!form_get_errors()) {
$cloned_node = drupal_clone($node);
$cloned_node->build_mode = NODE_BUILD_PREVIEW;
$output = theme('node_preview', $cloned_node);
}
drupal_set_title(t('Preview'));
return $output;
}
}
/**
* Display a node preview for display during node creation and editing.
*
* @param $node
* The node object which is being previewed.
*
* @ingroup themeable
*/
function theme_node_preview($node) {
$output = '<div class="preview">';
$preview_trimmed_version = FALSE;
// Do we need to preview trimmed version of post as well as full version?
if (isset($node->teaser) && isset($node->body)) {
$teaser = trim($node->teaser);
$body = trim(str_replace('<!--break-->', '', $node->body));
// Preview trimmed version if teaser and body will appear different;
// also (edge case) if both teaser and body have been specified by the user
// and are actually the same.
if ($teaser != $body || ($body && strpos($node->body, '<!--break-->') === 0)) {
$preview_trimmed_version = TRUE;
}
}
if ($preview_trimmed_version) {
drupal_set_message(t('The trimmed version of your post shows what your post looks like when promoted to the main page or when exported for syndication.<span class="no-js"> You can insert the delimiter "<!--break-->" (without the quotes) to fine-tune where your post gets split.</span>'));
$output .= '<h3>'. t('Preview trimmed version') .'</h3>';
$output .= node_view(drupal_clone($node), 1, FALSE, 0);
$output .= '<h3>'. t('Preview full version') .'</h3>';
$output .= node_view($node, 0, FALSE, 0);
}
else {
$output .= node_view($node, 0, FALSE, 0);
}
$output .= "</div>\n";
return $output;
}
function node_form_submit($form, &$form_state) {
global $user;
$node = node_form_submit_build_node($form, $form_state);
$insert = empty($node->nid);
node_save($node);
$node_link = l(t('view'), 'node/'. $node->nid);
$watchdog_args = array('@type' => $node->type, '%title' => $node->title);
$t_args = array('@type' => node_get_types('name', $node), '%title' => $node->title);
if ($insert) {
watchdog('content', '@type: added %title.', $watchdog_args, WATCHDOG_NOTICE, $node_link);
drupal_set_message(t('@type %title has been created.', $t_args));
}
else {
watchdog('content', '@type: updated %title.', $watchdog_args, WATCHDOG_NOTICE, $node_link);
drupal_set_message(t('@type %title has been updated.', $t_args));
}
if ($node->nid) {
unset($form_state['rebuild']);
$form_state['nid'] = $node->nid;
$form_state['redirect'] = 'node/'. $node->nid;
}
else {
// In the unlikely case something went wrong on save, the node will be
// rebuilt and node form redisplayed the same way as in preview.
drupal_set_message(t('The post could not be saved.'), 'error');
}
}
/**
* Build a node by processing submitted form values and prepare for a form rebuild.
*/
function node_form_submit_build_node($form, &$form_state) {
// Unset any button-level handlers, execute all the form-level submit
// functions to process the form values into an updated node.
unset($form_state['submit_handlers']);
form_execute_handlers('submit', $form, $form_state);
$node = node_submit($form_state['values']);
$form_state['node'] = (array)$node;
$form_state['rebuild'] = TRUE;
return $node;
}
/**
* Menu callback -- ask for confirmation of node deletion
*/
function node_delete_confirm(&$form_state, $node) {
$form['nid'] = array(
'#type' => 'value',
'#value' => $node->nid,
);
return confirm_form($form,
t('Are you sure you want to delete %title?', array('%title' => $node->title)),
isset($_GET['destination']) ? $_GET['destination'] : 'node/'. $node->nid,
t('This action cannot be undone.'),
t('Delete'),
t('Cancel')
);
}
/**
* Execute node deletion
*/
function node_delete_confirm_submit($form, &$form_state) {
if ($form_state['values']['confirm']) {
node_delete($form_state['values']['nid']);
}
$form_state['redirect'] = '<front>';
}
/**
* Generate an overview table of older revisions of a node.
*/
function node_revision_overview($node) {
drupal_set_title(t('Revisions for %title', array('%title' => $node->title)));
$header = array(t('Revision'), array('data' => t('Operations'), 'colspan' => 2));
$revisions = node_revision_list($node);
$rows = array();
$revert_permission = FALSE;
if ((user_access('revert revisions') || user_access('administer nodes')) && node_access('update', $node)) {
$revert_permission = TRUE;
}
$delete_permission = FALSE;
if ((user_access('delete revisions') || user_access('administer nodes')) && node_access('delete', $node)) {
$delete_permission = TRUE;
}
foreach ($revisions as $revision) {
$row = array();
$operations = array();
if ($revision->current_vid > 0) {
$row[] = array('data' => t('!date by !username', array('!date' => l(format_date($revision->timestamp, 'small'), "node/$node->nid"), '!username' => theme('username', $revision)))
. (($revision->log != '') ? '<p class="revision-log">'. filter_xss($revision->log) .'</p>' : ''),
'class' => 'revision-current');
$operations[] = array('data' => theme('placeholder', t('current revision')), 'class' => 'revision-current', 'colspan' => 2);
}
else {
$row[] = t('!date by !username', array('!date' => l(format_date($revision->timestamp, 'small'), "node/$node->nid/revisions/$revision->vid/view"), '!username' => theme('username', $revision)))
. (($revision->log != '') ? '<p class="revision-log">'. filter_xss($revision->log) .'</p>' : '');
if ($revert_permission) {
$operations[] = l(t('revert'), "node/$node->nid/revisions/$revision->vid/revert");
}
if ($delete_permission) {
$operations[] = l(t('delete'), "node/$node->nid/revisions/$revision->vid/delete");
}
}
$rows[] = array_merge($row, $operations);
}
return theme('table', $header, $rows);
}
/**
* Ask for confirmation of the reversion to prevent against CSRF attacks.
*/
function node_revision_revert_confirm($form_state, $node_revision) {
$form['#node_revision'] = $node_revision;
return confirm_form($form, t('Are you sure you want to revert to the revision from %revision-date?', array('%revision-date' => format_date($node_revision->revision_timestamp))), 'node/'. $node_revision->nid .'/revisions', '', t('Revert'), t('Cancel'));
}
function node_revision_revert_confirm_submit($form, &$form_state) {
$node_revision = $form['#node_revision'];
$node_revision->revision = 1;
$node_revision->log = t('Copy of the revision from %date.', array('%date' => format_date($node_revision->revision_timestamp)));
if (module_exists('taxonomy')) {
$node_revision->taxonomy = array_keys($node_revision->taxonomy);
}
node_save($node_revision);
watchdog('content', '@type: reverted %title revision %revision.', array('@type' => $node_revision->type, '%title' => $node_revision->title, '%revision' => $node_revision->vid));
drupal_set_message(t('@type %title has been reverted back to the revision from %revision-date.', array('@type' => node_get_types('name', $node_revision), '%title' => $node_revision->title, '%revision-date' => format_date($node_revision->revision_timestamp))));
$form_state['redirect'] = 'node/'. $node_revision->nid .'/revisions';
}
function node_revision_delete_confirm($form_state, $node_revision) {
$form['#node_revision'] = $node_revision;
return confirm_form($form, t('Are you sure you want to delete the revision from %revision-date?', array('%revision-date' => format_date($node_revision->revision_timestamp))), 'node/'. $node_revision->nid .'/revisions', t('This action cannot be undone.'), t('Delete'), t('Cancel'));
}
function node_revision_delete_confirm_submit($form, &$form_state) {
$node_revision = $form['#node_revision'];
db_query("DELETE FROM {node_revisions} WHERE nid = %d AND vid = %d", $node_revision->nid, $node_revision->vid);
node_invoke_nodeapi($node_revision, 'delete revision');
watchdog('content', '@type: deleted %title revision %revision.', array('@type' => $node_revision->type, '%title' => $node_revision->title, '%revision' => $node_revision->vid));
drupal_set_message(t('Revision from %revision-date of @type %title has been deleted.', array('%revision-date' => format_date($node_revision->revision_timestamp), '@type' => node_get_types('name', $node_revision), '%title' => $node_revision->title)));
$form_state['redirect'] = 'node/'. $node_revision->nid;
if (db_result(db_query('SELECT COUNT(vid) FROM {node_revisions} WHERE nid = %d', $node_revision->nid)) > 1) {
$form_state['redirect'] .= '/revisions';
}
}
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