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<?php
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/**
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* @file
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* Contains menu item registration for the content tool.
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*
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* The menu items registered are AJAX callbacks for the things like
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* autocomplete and other tools needed by the content types.
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*/
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function ctools_content_menu(&$items) {
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$base = array(
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'access arguments' => array('access content'),
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'type' => MENU_CALLBACK,
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'file' => 'includes/content.menu.inc',
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);
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$items['ctools/autocomplete/%'] = array(
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'page callback' => 'ctools_content_autocomplete_entity',
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'page arguments' => array(2),
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) + $base;
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}
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/**
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* Helper function for autocompletion of entity titles.
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*/
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function ctools_content_autocomplete_entity($type, $string = '') {
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if ($string != '') {
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global $user;
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$entity_info = entity_get_info($type);
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if ($type == 'node') {
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$entity_info['entity keys']['bundle field'] = 'type';
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}
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// We must query all ids, because if every one of the 10 don't have access
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// the user may never be able to autocomplete a node title.
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$preg_matches = array();
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$matches = array();
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$match = preg_match('/\[id: (\d+)\]/', $string, $preg_matches);
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if (!$match) {
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$match = preg_match('/^id: (\d+)/', $string, $preg_matches);
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}
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// If an ID match was found, use that ID rather than the whole string.
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if ($match) {
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$entity_id = $preg_matches[1];
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$entity = entity_load($type, array($entity_id));
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// Format results in an array so later we could add attributes to the
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// autocomplete text that is returned.
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$results = array($entity_id => array(
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'label' => $entity[$entity_id]->$entity_info['entity keys']['label'],
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));
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}
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else {
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$results = _ctools_getReferencableEntities($type, $entity_info, $string, 'LIKE', 10);
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}
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foreach($results as $entity_id => $result) {
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if (!$entity_info['entity keys']['label']) {
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$matches["[id: $entity_id]"] = '<span class="autocomplete_title">' . $entity_id . '</span>';
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}
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else {
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$matches[$result['label'] . " [id: $entity_id]"] = '<span class="autocomplete_title">' . check_plain($result['label']) . '</span>';
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$matches[$result['label'] . " [id: $entity_id]"] .= isset($result['bundle field']) ? ' <span class="autocomplete_bundle">(' . check_plain($result['bundle field']) . ')</span>' : '';
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}
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}
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drupal_json_output($matches);
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}
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}
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/*
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* Use well known/tested entity reference code to build our search query
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* From EntityReference_SelectionHandler_Generic class
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*/
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function _ctools_buildQuery($entity_type, $entity_info, $match = NULL, $match_operator = 'CONTAINS') {
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$base_table = $entity_info['base table'];
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$query = db_select($base_table)
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->fields($base_table, array($entity_info['entity keys']['id']));
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if (isset($match)) {
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if (isset($entity_info['entity keys']['label'])) {
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$query->condition($base_table .'.'. $entity_info['entity keys']['label'], '%' . $match . '%' , $match_operator);
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}
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}
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// Add a label to the query, if the label exists
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if (isset($entity_info['entity keys']['label'])) {
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$query->fields($base_table, array($entity_info['entity keys']['label']));
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}
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// Add bundle field to the query, if it exists.
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if (isset($entity_info['entity keys']['bundle field'])) {
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$query->fields($base_table, array($entity_info['entity keys']['bundle field']));
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}
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// Add a generic entity access tag to the query.
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$query->addTag('ctools');
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if($entity_type == 'comment') {
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// Adding the 'comment_access' tag is sadly insufficient for comments: core
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// requires us to also know about the concept of 'published' and
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// 'unpublished'.
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if (!user_access('administer comments')) {
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$query->condition('comment.status', COMMENT_PUBLISHED);
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}
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// Join to a node if the user does not have node access bypass permissions
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// to obey node published permissions
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if (!user_access('bypass node access') && !count(module_implements('node_grants'))) {
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$node_alias = $query->innerJoin('node', 'n', '%alias.nid = comment.nid');
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$query->condition($node_alias . '.status', NODE_PUBLISHED);
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}
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$query->addTag('node_access');
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}
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else {
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$query->addTag($entity_type . '_access');
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}
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// Add the sort option.
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if(isset($entity_info['entity keys']['label'])) {
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$query->orderBy($base_table .'.'. $entity_info['entity keys']['label'], 'ASC');
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}
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return $query;
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}
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/**
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* Private function to get referencable entities. Based on code from the
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* Entity Reference module.
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*/
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function _ctools_getReferencableEntities($entity_type, $entity_info, $match = NULL, $match_operator = 'LIKE', $limit = 0) {
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$options = array();
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$query = _ctools_buildQuery($entity_type, $entity_info, $match, $match_operator);
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if ($limit > 0) {
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$query->range(0, $limit);
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}
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$results = $query->execute();
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if (!empty($results)) {
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foreach ($results as $record) {
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$options[$record->{$entity_info['entity keys']['id']}] = array(
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'label' => isset($entity_info['entity keys']['label']) ? check_plain($record->{$entity_info['entity keys']['label']}) : $record->{$entity_info['entity keys']['id']},
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'bundle field' => isset($entity_info['entity keys']['bundle field']) ? check_plain($record->{$entity_info['entity keys']['bundle field']}) : '',
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);
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}
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}
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return $options;
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}
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