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