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<?php
// $Id: book.admin.inc,v 1.8 2008/01/08 10:35:41 goba Exp $
/**
* @file
* Admin page callbacks for the book module.
*/
/**
* Returns an administrative overview of all books.
*/
function book_admin_overview() {
$rows = array();
foreach (book_get_books() as $book) {
$rows[] = array(l($book['title'], $book['href'], $book['options']), l(t('edit order and titles'), "admin/content/book/". $book['nid']));
}
$headers = array(t('Book'), t('Operations'));
return theme('table', $headers, $rows);
}
/**
* Builds and returns the book settings form.
*
* @see book_admin_settings_validate()
*
* @ingroup forms
*/
function book_admin_settings() {
$types = node_get_types('names');
$form['book_allowed_types'] = array(
'#type' => 'checkboxes',
'#title' => t('Allowed book outline types'),
'#default_value' => variable_get('book_allowed_types', array('book')),
'#options' => $types,
'#description' => t('Select content types which users with the %add-perm permission will be allowed to add to the book hierarchy. Users with the %outline-perm permission can add all content types.', array('%add-perm' => t('add content to books'), '%outline-perm' => t('administer book outlines'))),
'#required' => TRUE,
);
$form['book_child_type'] = array(
'#type' => 'radios',
'#title' => t('Default child page type'),
'#default_value' => variable_get('book_child_type', 'book'),
'#options' => $types,
'#description' => t('The content type for the %add-child link must be one of those selected as an allowed book outline type.', array('%add-child' => t('Add child page'))),
'#required' => TRUE,
);
$form['array_filter'] = array('#type' => 'value', '#value' => TRUE);
$form['#validate'][] = 'book_admin_settings_validate';
return system_settings_form($form);
}
/**
* Validate the book settings form.
*
* @see book_admin_settings()
*/
function book_admin_settings_validate($form, &$form_state) {
$child_type = $form_state['values']['book_child_type'];
if (empty($form_state['values']['book_allowed_types'][$child_type])) {
form_set_error('book_child_type', t('The content type for the %add-child link must be one of those selected as an allowed book outline type.', array('%add-child' => t('Add child page'))));
}
}
/**
* Build the form to administrate the hierarchy of a single book.
*
* @see book_admin_edit_submit()
*
* @ingroup forms.
*/
function book_admin_edit($form_state, $node) {
drupal_set_title(check_plain($node->title));
$form = array();
$form['#node'] = $node;
$form['table'] = _book_admin_table($node);
$form['save'] = array(
'#type' => 'submit',
'#value' => t('Save book pages'),
);
return $form;
}
/**
* Handle submission of the book administrative page form.
*
* This function takes care to save parent menu items before their children.
* Saving menu items in the incorrect order can break the menu tree.
*
* @see book_admin_edit()
* @see menu_overview_form_submit()
*/
function book_admin_edit_submit($form, &$form_state) {
// Save elements in the same order as defined in post rather than the form.
// This ensures parents are updated before their children, preventing orphans.
$order = array_flip(array_keys($form['#post']['table']));
$form['table'] = array_merge($order, $form['table']);
foreach (element_children($form['table']) as $key) {
if ($form['table'][$key]['#item']) {
$row = $form['table'][$key];
$values = $form_state['values']['table'][$key];
// Update menu item if moved.
if ($row['plid']['#default_value'] != $values['plid'] || $row['weight']['#default_value'] != $values['weight']) {
$row['#item']['plid'] = $values['plid'];
$row['#item']['weight'] = $values['weight'];
menu_link_save($row['#item']);
}
// Update the title if changed.
if ($row['title']['#default_value'] != $values['title']) {
$node = node_load($values['nid'], FALSE);
$node->title = $values['title'];
$node->book['link_title'] = $values['title'];
$node->revision = 1;
$node->log = t('Title changed from %original to %current.', array('%original' => $node->title, '%current' => $values['title']));
node_save($node);
watchdog('content', 'book: updated %title.', array('%title' => $node->title), WATCHDOG_NOTICE, l(t('view'), 'node/'. $node->nid));
}
}
}
drupal_set_message(t('Updated book %title.', array('%title' => $form['#node']->title)));
}
/**
* Build the table portion of the form for the book administration page.
*
* @see book_admin_edit()
*/
function _book_admin_table($node) {
$form = array(
'#theme' => 'book_admin_table',
'#tree' => TRUE,
);
$tree = book_menu_subtree_data($node->book);
$tree = array_shift($tree); // Do not include the book item itself.
if ($tree['below']) {
_book_admin_table_tree($tree['below'], $form);
}
return $form;
}
/**
* Recursive helper to build the main table in the book administration page form.
*
* @see book_admin_edit()
*/
function _book_admin_table_tree($tree, &$form) {
foreach ($tree as $key => $data) {
$form[$key] = array(
'#item' => $data['link'],
'nid' => array('#type' => 'value', '#value' => $data['link']['nid']),
'depth' => array('#type' => 'value', '#value' => $data['link']['depth']),
'href' => array('#type' => 'value', '#value' => $data['link']['href']),
'title' => array(
'#type' => 'textfield',
'#default_value' => $data['link']['link_title'],
'#maxlength' => 255,
'#size' => 40,
),
'weight' => array(
'#type' => 'weight',
'#default_value' => $data['link']['weight'],
'#delta' => 15,
),
'plid' => array(
'#type' => 'textfield',
'#default_value' => $data['link']['plid'],
'#size' => 6,
),
'mlid' => array(
'#type' => 'hidden',
'#default_value' => $data['link']['mlid'],
),
);
if ($data['below']) {
_book_admin_table_tree($data['below'], $form);
}
}
return $form;
}
/**
* Theme function for the book administration page form.
*
* @ingroup themeable
* @see book_admin_table()
*/
function theme_book_admin_table($form) {
drupal_add_tabledrag('book-outline', 'match', 'parent', 'book-plid', 'book-plid', 'book-mlid', TRUE, MENU_MAX_DEPTH - 2);
drupal_add_tabledrag('book-outline', 'order', 'sibling', 'book-weight');
$header = array(t('Title'), t('Weight'), t('Parent'), array('data' => t('Operations'), 'colspan' => '3'));
$rows = array();
$destination = drupal_get_destination();
$access = user_access('administer nodes');
foreach (element_children($form) as $key) {
$nid = $form[$key]['nid']['#value'];
$href = $form[$key]['href']['#value'];
// Add special classes to be used with tabledrag.js.
$form[$key]['plid']['#attributes']['class'] = 'book-plid';
$form[$key]['mlid']['#attributes']['class'] = 'book-mlid';
$form[$key]['weight']['#attributes']['class'] = 'book-weight';
$data = array(
theme('indentation', $form[$key]['depth']['#value'] - 2) . drupal_render($form[$key]['title']),
drupal_render($form[$key]['weight']),
drupal_render($form[$key]['plid']) . drupal_render($form[$key]['mlid']),
l(t('view'), $href),
$access ? l(t('edit'), 'node/'. $nid .'/edit', array('query' => $destination)) : ' ',
$access ? l(t('delete'), 'node/'. $nid .'/delete', array('query' => $destination) ) : ' ',
);
$row = array('data' => $data);
if (isset($form[$key]['#attributes'])) {
$row = array_merge($row, $form[$key]['#attributes']);
}
$row['class'] = empty($row['class']) ? 'draggable' : $row['class'] .' draggable';
$rows[] = $row;
}
return theme('table', $header, $rows, array('id' => 'book-outline'));
}
/**
* Recursive helper to sort each layer of a book tree by weight.
*/
function _book_admin_sort_tree(&$tree) {
uasort($tree, '_book_admin_compare');
foreach ($tree as $key => $subtree) {
if (!empty($tree[$key]['below'])) {
_book_admin_sort_tree($tree[$key]['below']);
}
}
}
/**
* Used by uasort() in _book_admin_sort_tree() to compare items in a book tree.
*/
function _book_admin_compare($a, $b) {
$weight = $a['link']['weight'] - $b['link']['weight'];
if ($weight) {
return $weight;
}
return strncmp($a['link']['title'], $b['link']['title']);
}
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