263 lines
8.3 KiB
PHP
263 lines
8.3 KiB
PHP
<?php
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/**
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* @file
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* Administration page callbacks for the Book module.
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*/
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use Drupal\Component\Utility\Crypt;
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use Drupal\Core\Entity\EntityInterface;
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use Drupal\Core\Language\Language;
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/**
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* Form constructor for administering a single book's hierarchy.
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*
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* @param \Drupal\Core\Entity\EntityInterface $node
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* The node of the top-level page in the book.
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*
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* @see book_menu()
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* @see book_admin_edit_validate()
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* @see book_admin_edit_submit()
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* @ingroup forms
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*/
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function book_admin_edit($form, $form_state, EntityInterface $node) {
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drupal_set_title($node->label());
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$form['#node'] = $node;
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_book_admin_table($node, $form);
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$form['save'] = array(
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'#type' => 'submit',
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'#value' => t('Save book pages'),
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);
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return $form;
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}
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/**
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* Form validation handler for book_admin_edit().
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*
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* Checks that the book has not been changed while using the form.
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*
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* @see book_admin_edit_submit()
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*/
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function book_admin_edit_validate($form, &$form_state) {
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if ($form_state['values']['tree_hash'] != $form_state['values']['tree_current_hash']) {
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form_set_error('', t('This book has been modified by another user, the changes could not be saved.'));
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}
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}
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/**
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* Form submission handler for book_admin_edit().
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*
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* This function takes care to save parent menu items before their children.
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* Saving menu items in the incorrect order can break the menu tree.
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*
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* @see book_admin_edit_validate()
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* @see menu_overview_form_submit()
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*/
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function book_admin_edit_submit($form, &$form_state) {
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// Save elements in the same order as defined in post rather than the form.
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// This ensures parents are updated before their children, preventing orphans.
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$order = array_flip(array_keys($form_state['input']['table']));
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$form['table'] = array_merge($order, $form['table']);
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// Track updates.
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$updated = FALSE;
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foreach (element_children($form['table']) as $key) {
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if ($form['table'][$key]['#item']) {
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$row = $form['table'][$key];
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$values = $form_state['values']['table'][$key];
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// Update menu item if moved.
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if ($row['plid']['#default_value'] != $values['plid'] || $row['weight']['#default_value'] != $values['weight']) {
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$menu_link = entity_load('menu_link', $values['mlid']);
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$menu_link->weight = $values['weight'];
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$menu_link->plid = $values['plid'];
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$menu_link->save();
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$updated = TRUE;
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}
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// Update the title if changed.
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if ($row['title']['#default_value'] != $values['title']) {
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$node = node_load($values['nid']);
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$langcode = Language::LANGCODE_NOT_SPECIFIED;
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$node->title = $values['title'];
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$node->book['link_title'] = $values['title'];
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$node->setNewRevision();
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$node->log = t('Title changed from %original to %current.', array('%original' => $node->title, '%current' => $values['title']));
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$node->save();
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watchdog('content', 'book: updated %title.', array('%title' => $node->label()), WATCHDOG_NOTICE, l(t('view'), 'node/' . $node->id()));
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}
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}
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}
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if ($updated) {
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// Flush static and cache.
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drupal_static_reset('book_menu_subtree_data');
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$cid = 'links:' . $form['#node']->book['menu_name'] . ':subtree-cid:' . $form['#node']->book['mlid'];
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cache('menu')->delete($cid);
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}
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drupal_set_message(t('Updated book %title.', array('%title' => $form['#node']->label())));
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}
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/**
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* Builds the table portion of the form for the book administration page.
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*
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* @param \Drupal\Core\Entity\EntityInterface $node
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* The node of the top-level page in the book.
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* @param $form
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* The form that is being modified, passed by reference.
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*
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* @see book_admin_edit()
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*/
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function _book_admin_table(EntityInterface $node, &$form) {
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$form['table'] = array(
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'#theme' => 'book_admin_table',
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'#tree' => TRUE,
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);
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$tree = book_menu_subtree_data($node->book);
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$tree = array_shift($tree); // Do not include the book item itself.
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if ($tree['below']) {
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$hash = Crypt::hashBase64(serialize($tree['below']));
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// Store the hash value as a hidden form element so that we can detect
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// if another user changed the book hierarchy.
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$form['tree_hash'] = array(
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'#type' => 'hidden',
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'#default_value' => $hash,
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);
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$form['tree_current_hash'] = array(
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'#type' => 'value',
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'#value' => $hash,
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);
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_book_admin_table_tree($tree['below'], $form['table']);
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}
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}
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/**
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* Helps build the main table in the book administration page form.
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*
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* @param $tree
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* A subtree of the book menu hierarchy.
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* @param $form
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* The form that is being modified, passed by reference.
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*
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* @return
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* The modified form array.
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*
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* @see book_admin_edit()
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*/
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function _book_admin_table_tree($tree, &$form) {
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// The delta must be big enough to give each node a distinct value.
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$count = count($tree);
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$delta = ($count < 30) ? 15 : intval($count / 2) + 1;
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foreach ($tree as $data) {
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$form['book-admin-' . $data['link']['nid']] = array(
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'#item' => $data['link'],
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'nid' => array('#type' => 'value', '#value' => $data['link']['nid']),
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'depth' => array('#type' => 'value', '#value' => $data['link']['depth']),
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'href' => array('#type' => 'value', '#value' => $data['link']['href']),
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'title' => array(
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'#title' => t('Title'),
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'#title_display' => 'invisible',
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'#type' => 'textfield',
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'#default_value' => $data['link']['link_title'],
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'#maxlength' => 255,
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'#size' => 40,
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),
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'weight' => array(
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'#type' => 'weight',
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'#default_value' => $data['link']['weight'],
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'#delta' => max($delta, abs($data['link']['weight'])),
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'#title' => t('Weight for @title', array('@title' => $data['link']['title'])),
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'#title_display' => 'invisible',
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),
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'plid' => array(
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'#type' => 'hidden',
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'#default_value' => $data['link']['plid'],
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),
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'mlid' => array(
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'#type' => 'hidden',
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'#default_value' => $data['link']['mlid'],
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),
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);
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if ($data['below']) {
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_book_admin_table_tree($data['below'], $form);
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}
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}
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return $form;
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}
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/**
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* Returns HTML for a book administration form.
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*
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* @param array $variables
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* An associative array containing:
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* - form: A render element representing the form.
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*
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* @see book_admin_table()
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* @ingroup themeable
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*/
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function theme_book_admin_table($variables) {
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$form = $variables['form'];
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drupal_add_tabledrag('book-outline', 'match', 'parent', 'book-plid', 'book-plid', 'book-mlid', TRUE, MENU_MAX_DEPTH - 2);
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drupal_add_tabledrag('book-outline', 'order', 'sibling', 'book-weight');
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$header = array(t('Title'), t('Weight'), t('Parent'), t('Operations'));
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$rows = array();
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$destination = drupal_get_destination();
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$access = Drupal::currentUser()->hasPermission('administer nodes');
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foreach (element_children($form) as $key) {
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$nid = $form[$key]['nid']['#value'];
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$href = $form[$key]['href']['#value'];
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// Add special classes to be used with tabledrag.js.
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$form[$key]['plid']['#attributes']['class'] = array('book-plid');
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$form[$key]['mlid']['#attributes']['class'] = array('book-mlid');
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$form[$key]['weight']['#attributes']['class'] = array('book-weight');
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$indentation = array('#theme' => 'indentation', '#size' => $form[$key]['depth']['#value'] - 2);
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$data = array(
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drupal_render($indentation) . drupal_render($form[$key]['title']),
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drupal_render($form[$key]['weight']),
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drupal_render($form[$key]['plid']) . drupal_render($form[$key]['mlid']),
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);
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$links = array();
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$links['view'] = array(
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'title' => t('View'),
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'href' => $href,
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);
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if ($access) {
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$links['edit'] = array(
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'title' => t('Edit'),
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'href' => "node/$nid/edit",
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'query' => $destination,
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);
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$links['delete'] = array(
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'title' => t('Delete'),
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'href' => "node/$nid/delete",
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'query' => $destination,
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);
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}
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$data[] = array(
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'data' => array(
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'#type' => 'operations',
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'#links' => $links,
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),
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);
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$row = array('data' => $data);
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if (isset($form[$key]['#attributes'])) {
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$row = array_merge($row, $form[$key]['#attributes']);
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}
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$row['class'][] = 'draggable';
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$rows[] = $row;
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}
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$table = array('#theme' => 'table', '#header' => $header, '#rows' => $rows, '#attributes' => array('id' => 'book-outline'), '#empty' => t('No book content available.'));
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return drupal_render($table);
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}
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