function message_entity_delete in Message 7

Same name and namespace in other branches

1. 8 message.module \message_entity_delete()

Implements hook_entity_delete().

Handles messages deletion when referenced entities are being deleted.

Parameters

$entity: The entity object.

$entity_type: The type of entity being deleted (i.e. node, user, comment).

1 string reference to 'message_entity_delete'

message_entity_delete_queue_worker in ./message.module

Queue API worker; Process a queue item.

File

./message.module, line 381

API functions to manipulate messages.

Code

function message_entity_delete($entity, $entity_type) {
  if ($entity_type == 'message') {
    return;
  }
  if (!($field_names = _message_get_referenced_fields($entity_type, $entity))) {
    return;
  }
  list($entity_id) = entity_extract_ids($entity_type, $entity);

  // A deleted message with no reference doesn't need to create a queue worker.
  $delete_referenced_entities = FALSE;
  foreach ($field_names as $field_name) {
    $field = field_info_field($field_name);
    $columns = array_keys($field['columns']);

    // Fetch messages with fields referencing the deleted entity.
    $query = new EntityFieldQuery();
    $result = $query
      ->entityCondition('entity_type', 'message')
      ->fieldCondition($field['field_name'], $columns[0], $entity_id)
      ->execute();
    if (!empty($result['message'])) {
      $delete_referenced_entities = TRUE;
      break;
    }
  }
  if (!$delete_referenced_entities) {
    return;
  }
  if (variable_get('message_use_queue')) {
    $data = array(
      'range' => 200,
      'last_mid' => 0,
      'field_names' => $field_names,
      'entity_id' => $entity_id,
    );
    $queue = DrupalQueue::get('message_entity_delete');
    return $queue
      ->createItem($data);
  }
  _message_delete_messages($field_names, $entity_id);
}