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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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) + $base;
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}
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/**
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* Helper function for autocompletion of entity titles.
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*/
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function ctools_content_autocomplete_entity($entity_type, $string = '') {
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if ($string != '') {
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$entity_info = entity_get_info($entity_type);
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if (!module_exists('entity')) {
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module_load_include('inc', 'ctools', 'includes/entity-access');
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_ctools_entity_access($entity_info, $entity_type);
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}
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// We must query all ids, because if every one of the 10 don't have access
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// the user may never be able to autocomplete a node title.
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$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 = $preg_matches[1];
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$results = _ctools_getReferencableEntities($entity_type, $entity_info, $entity_id, '=', 1);
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}
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else {
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// We cannot find results if the entity doesn't have a label to search.
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if (!isset($entity_info['entity keys']['label'])) {
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drupal_json_output(array("[id: NULL]" => '<span class="autocomplete_title">' . t('Entity Type !entity_type does not support autocomplete search.', array('!entity_type' => $entity_type)) . '</span>'));
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return;
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}
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$results = _ctools_getReferencableEntities($entity_type, $entity_info, $string, 'LIKE', 10);
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}
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foreach ($results as $entity_id => $result) {
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$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']) ? ' <span class="autocomplete_bundle">(' . check_plain($result['bundle']) . ')</span>' : '';
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}
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drupal_json_output($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 = $entity_info['base table'];
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$label_key = $entity_info['entity keys']['label'];
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$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($label_key)) {
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$query->condition($base_table . '.' . $label_key, '%' . $match . '%', $match_operator);
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}
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// This should never happen, but double check just in case.
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else {
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return array();
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}
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}
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// Add a generic entity access tag to the query.
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$query->addTag('ctools');
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// We have to perform two checks. First check is a query alter (with tags)
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// in an attempt to only return results that have access. However, this is
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// not full-proof since entities many not implement hook_access query tag.
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// This is why we have a second check after entity load, before we display
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// the label of an entity.
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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')) {
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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($label_key)) {
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$query->orderBy($base_table . '.' . $label_key, '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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global $user;
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$account = $user;
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$options = array();
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// We're an entity ID, return the id
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if (is_numeric($match) && $match_operator == '=') {
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if ($entity = array_shift(entity_load($entity_type, array($match)))) {
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if (isset($entity_info['access callback']) && function_exists($entity_info['access callback'])) {
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if ($entity_info['access callback']('view', $entity, $account, $entity_type)) {
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$label = entity_label($entity_type, $entity);
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return array(
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$match => array(
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'label' => !empty($label) ? $label : $entity->{$entity_info['entity keys']['id']},
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'bundle' => !empty($entity_info['entity keys']['bundle']) ? check_plain($entity->{$entity_info['entity keys']['bundle']}) : NULL,
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),
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);
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}
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}
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}
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// If you don't have access, or an access callback or a valid entity, just
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// Return back the Entity ID.
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return array(
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$match => array(
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'label' => $match,
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'bundle' => NULL,
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),
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);
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}
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// We have matches, build a query to fetch the result.
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if ($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 $record) {
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$entities = entity_load($entity_type, array($record->{$entity_info['entity keys']['id']}));
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$entity = array_shift($entities);
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if (isset($entity_info['access callback']) && function_exists($entity_info['access callback'])) {
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if ($entity_info['access callback']('view', $entity, $account, $entity_type)) {
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$label = entity_label($entity_type, $entity);
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$options[$record->{$entity_info['entity keys']['id']}] = array(
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'label' => !empty($label) ? $label : $entity->{$entity_info['entity keys']['id']},
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'bundle' => !empty($entity_info['entity keys']['bundle']) ? check_plain($entity->{$entity_info['entity keys']['bundle']}) : NULL,
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);
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}
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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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return array();
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}
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