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- <?php
- /**
- * @file
- * Contains menu item registration for the content tool.
- *
- * The menu items registered are AJAX callbacks for the things like
- * autocomplete and other tools needed by the content types.
- */
- function ctools_content_menu(&$items) {
- $base = array(
- 'access arguments' => array('access content'),
- 'type' => MENU_CALLBACK,
- 'file' => 'includes/content.menu.inc',
- );
- $items['ctools/autocomplete/%'] = array(
- 'page callback' => 'ctools_content_autocomplete_entity',
- 'page arguments' => array(2),
- ) + $base;
- }
- /**
- * Helper function for autocompletion of entity titles.
- */
- function ctools_content_autocomplete_entity($entity_type, $string = '') {
- if ($string != '') {
- $entity_info = entity_get_info($entity_type);
- if (!module_exists('entity')) {
- module_load_include('inc', 'ctools', 'includes/entity-access');
- _ctools_entity_access($entity_info, $entity_type);
- }
- // We must query all ids, because if every one of the 10 don't have access
- // the user may never be able to autocomplete a node title.
- $preg_matches = array();
- $matches = array();
- $match = preg_match('/\[id: (\d+)\]/', $string, $preg_matches);
- if (!$match) {
- $match = preg_match('/^id: (\d+)/', $string, $preg_matches);
- }
- // If an ID match was found, use that ID rather than the whole string.
- if ($match) {
- $entity_id = $preg_matches[1];
- $results = _ctools_getReferencableEntities($entity_type, $entity_info, $entity_id, '=', 1);
- }
- else {
- // We cannot find results if the entity doesn't have a label to search.
- if (!isset($entity_info['entity keys']['label'])) {
- drupal_json_output(array("[id: NULL]" => '<span class="autocomplete_title">' . t('Entity Type !entity_type does not support autocomplete search.', array('!entity_type' => $entity_type)) . '</span>'));
- return;
- }
- $results = _ctools_getReferencableEntities($entity_type, $entity_info, $string, 'LIKE', 10);
- }
- foreach ($results as $entity_id => $result) {
- $matches[$result['label'] . " [id: $entity_id]"] = '<span class="autocomplete_title">' . check_plain($result['label']) . '</span>';
- $matches[$result['label'] . " [id: $entity_id]"] .= isset($result['bundle']) ? ' <span class="autocomplete_bundle">(' . check_plain($result['bundle']) . ')</span>' : '';
- }
- drupal_json_output($matches);
- }
- }
- /*
- * Use well known/tested entity reference code to build our search query
- * From EntityReference_SelectionHandler_Generic class
- */
- function _ctools_buildQuery($entity_type, $entity_info, $match = NULL, $match_operator = 'CONTAINS') {
- $base_table = $entity_info['base table'];
- $label_key = $entity_info['entity keys']['label'];
- $query = db_select($base_table)
- ->fields($base_table, array($entity_info['entity keys']['id']));
- if (isset($match)) {
- if (isset($label_key)) {
- $query->condition($base_table . '.' . $label_key, '%' . $match . '%', $match_operator);
- }
- // This should never happen, but double check just in case.
- else {
- return array();
- }
- }
- // Add a generic entity access tag to the query.
- $query->addTag('ctools');
- // We have to perform two checks. First check is a query alter (with tags)
- // in an attempt to only return results that have access. However, this is
- // not full-proof since entities many not implement hook_access query tag.
- // This is why we have a second check after entity load, before we display
- // the label of an entity.
- if ($entity_type == 'comment') {
- // Adding the 'comment_access' tag is sadly insufficient for comments: core
- // requires us to also know about the concept of 'published' and
- // 'unpublished'.
- if (!user_access('administer comments')) {
- $query->condition('comment.status', COMMENT_PUBLISHED);
- }
- // Join to a node if the user does not have node access bypass permissions
- // to obey node published permissions
- if (!user_access('bypass node access')) {
- $node_alias = $query->innerJoin('node', 'n', '%alias.nid = comment.nid');
- $query->condition($node_alias . '.status', NODE_PUBLISHED);
- }
- $query->addTag('node_access');
- }
- else {
- $query->addTag($entity_type . '_access');
- }
- // Add the sort option.
- if (isset($label_key)) {
- $query->orderBy($base_table . '.' . $label_key, 'ASC');
- }
- return $query;
- }
- /**
- * Private function to get referencable entities. Based on code from the
- * Entity Reference module.
- */
- function _ctools_getReferencableEntities($entity_type, $entity_info, $match = NULL, $match_operator = 'LIKE', $limit = 0) {
- global $user;
- $account = $user;
- $options = array();
- // We're an entity ID, return the id
- if (is_numeric($match) && $match_operator == '=') {
- if ($entity = array_shift(entity_load($entity_type, array($match)))) {
- if (isset($entity_info['access callback']) && function_exists($entity_info['access callback'])) {
- if ($entity_info['access callback']('view', $entity, $account, $entity_type)) {
- $label = entity_label($entity_type, $entity);
- return array(
- $match => array(
- 'label' => !empty($label) ? $label : $entity->{$entity_info['entity keys']['id']},
- 'bundle' => !empty($entity_info['entity keys']['bundle']) ? check_plain($entity->{$entity_info['entity keys']['bundle']}) : NULL,
- ),
- );
- }
- }
- }
- // If you don't have access, or an access callback or a valid entity, just
- // Return back the Entity ID.
- return array(
- $match => array(
- 'label' => $match,
- 'bundle' => NULL,
- ),
- );
- }
- // We have matches, build a query to fetch the result.
- if ($query = _ctools_buildQuery($entity_type, $entity_info, $match, $match_operator)) {
- if ($limit > 0) {
- $query->range(0, $limit);
- }
- $results = $query->execute();
- if (!empty($results)) {
- foreach ($results as $record) {
- $entities = entity_load($entity_type, array($record->{$entity_info['entity keys']['id']}));
- $entity = array_shift($entities);
- if (isset($entity_info['access callback']) && function_exists($entity_info['access callback'])) {
- if ($entity_info['access callback']('view', $entity, $account, $entity_type)) {
- $label = entity_label($entity_type, $entity);
- $options[$record->{$entity_info['entity keys']['id']}] = array(
- 'label' => !empty($label) ? $label : $entity->{$entity_info['entity keys']['id']},
- 'bundle' => !empty($entity_info['entity keys']['bundle']) ? check_plain($entity->{$entity_info['entity keys']['bundle']}) : NULL,
- );
- }
- }
- }
- }
- return $options;
- }
- return array();
- }
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