www.aleph1.co.uk Git - yaffs-website/blob - web/modules/contrib/entityqueue/plugins/entityreference/selection/EntityReference_SelectionHandler_EntityQueue.class.php

   1 <?php
   2
   3 /**
   4  * @file
   5  * Definition of EntityReference_SelectionHandler_EntityQueue.
   6  */
   7
   8 /**
   9  * Defines a Entityreference selection handler for Entityqueue.
  10  */
  11 class EntityReference_SelectionHandler_EntityQueue extends EntityReference_SelectionHandler_Generic {
  12
  13   /**
  14    * Overrides EntityReference_SelectionHandler_Generic::getInstance().
  15    */
  16   public static function getInstance($field, $instance = NULL, $entity_type = NULL, $entity = NULL) {
  17     return new EntityReference_SelectionHandler_EntityQueue($field, $instance, $entity_type, $entity);
  18   }
  19
  20   /**
  21    * Constructs the EntityQueue selection handler.
  22    */
  23   protected function __construct($field, $instance = NULL, $entity_type = NULL, $entity = NULL) {
  24     parent::__construct($field, $instance, $entity_type, $entity);
  25
  26     $queue_name = NULL;
  27     if (!empty($entity->queue)) {
  28       $queue_name = $entity->queue;
  29     }
  30     elseif (!empty($instance['bundle'])) {
  31       $queue_name = $instance['bundle'];
  32     }
  33     if (!empty($queue_name)) {
  34       $this->queue = entityqueue_queue_load($queue_name);
  35     }
  36
  37     // Override the entityreference settings with our own.
  38     $this->field['settings']['handler_settings']['target_bundles'] = NULL;
  39   }
  40
  41   /**
  42    * Overrides EntityReference_SelectionHandler_Generic::buildEntityFieldQuery().
  43    */
  44   public function buildEntityFieldQuery($match = NULL, $match_operator = 'CONTAINS') {
  45     $handler = EntityReference_SelectionHandler_Generic::getInstance($this->field, $this->instance, $this->entity_type, $this->entity);
  46     $query = $handler->buildEntityFieldQuery($match, $match_operator);
  47
  48     if (!empty($this->queue->settings['target_bundles'])) {
  49       $query->entityCondition('bundle', $this->queue->settings['target_bundles'], 'IN');
  50     }
  51
  52     return $query;
  53   }
  54
  55   /**
  56    * Implements EntityReferenceHandler::validateReferencableEntities().
  57    */
  58   public function validateReferencableEntities(array $ids) {
  59     $referencable = parent::validateReferencableEntities($ids);
  60     // Allow users to save the queue even if they don't have access to an
  61     // existing entity in the queue. See https://www.drupal.org/node/2383903
  62     $existing = $this->getCurrentlyReferencedEntityIds();
  63
  64     return array_unique(array_merge($referencable, $existing));
  65   }
  66
  67   /**
  68    * Gets ids of existing entities in the queue.
  69    *
  70    * @return array
  71    *   Entity ids that are currently referenced by the entity.
  72    */
  73   public function getCurrentlyReferencedEntityIds() {
  74     $ret = array();
  75     if (isset($this->entity) && isset($this->field)) {
  76       $entity_type = $this->entity_type;
  77       $field_name = $this->field['field_name'];
  78       $wrapper = entity_metadata_wrapper($entity_type, $this->entity);
  79       $ret = $wrapper->{$field_name}->raw();
  80     }
  81
  82     return $ret;
  83   }
  84
  85 }