class EntityReference_SelectionHandler_Generic_comment in Entity reference 7

Override for the Comment type.

This only exists to workaround core bugs.

Hierarchy

• class \EntityReference_SelectionHandler_Generic implements EntityReference_SelectionHandler
  • class \EntityReference_SelectionHandler_Generic_comment

File

plugins/selection/EntityReference_SelectionHandler_Generic.class.php, line 436

class EntityReference_SelectionHandler_Generic_comment extends EntityReference_SelectionHandler_Generic {
  public function entityFieldQueryAlter(SelectQueryInterface $query) {

    // 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    // 'unpublished'.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')) {
      $base_table = $this
        ->ensureBaseTable($query);
      $query
        ->condition("{$base_table}.status", COMMENT_PUBLISHED);
    }

    // The Comment module doesn't implement any proper comment access,
    // and as a consequence doesn't make sure that comments cannot be viewed
    // when the user doesn't have access to the node.
    $tables = $query
      ->getTables();
    $base_table = key($tables);
    $node_alias = $query
      ->innerJoin('node', 'n', '%alias.nid = ' . $base_table . '.nid');

    // Pass the query to the node access control.
    $this
      ->reAlterQuery($query, 'node_access', $node_alias);

    // Alas, the comment entity exposes a bundle, but doesn't have a bundle column
    // in the database. We have to alter the query ourself to go fetch the
    // bundle.
    $conditions =& $query
      ->conditions();
    foreach ($conditions as $key => &$condition) {
      if ($key !== '#conjunction' && is_string($condition['field']) && $condition['field'] === 'node_type') {
        $condition['field'] = $node_alias . '.type';
        foreach ($condition['value'] as &$value) {
          if (substr($value, 0, 13) == 'comment_node_') {
            $value = substr($value, 13);
          }
        }
        break;
      }
    }

    // Passing the query to node_query_node_access_alter() is sadly
    // insufficient for nodes.
    // @see EntityReferenceHandler_node::entityFieldQueryAlter()
    if (!user_access('bypass node access') && !count(module_implements('node_grants'))) {
      $query
        ->condition($node_alias . '.status', 1);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
EntityReference_SelectionHandler_Generic::buildEntityFieldQuery	protected	function	Build an EntityFieldQuery to get referencable entities.	1
EntityReference_SelectionHandler_Generic::countReferencableEntities	public	function	Implements EntityReferenceHandler::countReferencableEntities(). Overrides EntityReference_SelectionHandler::countReferencableEntities
EntityReference_SelectionHandler_Generic::ensureBaseTable	public	function	Ensure a base table exists for the query.
EntityReference_SelectionHandler_Generic::getInstance	public static	function	Implements EntityReferenceHandler::getInstance(). Overrides EntityReference_SelectionHandler::getInstance
EntityReference_SelectionHandler_Generic::getLabel	public	function	Implements EntityReferenceHandler::getLabel(). Overrides EntityReference_SelectionHandler::getLabel	1
EntityReference_SelectionHandler_Generic::getReferencableEntities	public	function	Implements EntityReferenceHandler::getReferencableEntities(). Overrides EntityReference_SelectionHandler::getReferencableEntities	1
EntityReference_SelectionHandler_Generic::reAlterQuery	protected	function	Helper method: pass a query to the alteration system again.
EntityReference_SelectionHandler_Generic::settingsForm	public static	function	Implements EntityReferenceHandler::settingsForm(). Overrides EntityReference_SelectionHandler::settingsForm
EntityReference_SelectionHandler_Generic::validateAutocompleteInput	public	function	Implements EntityReferenceHandler::validateAutocompleteInput(). Overrides EntityReference_SelectionHandler::validateAutocompleteInput
EntityReference_SelectionHandler_Generic::validateReferencableEntities	public	function	Implements EntityReferenceHandler::validateReferencableEntities(). Overrides EntityReference_SelectionHandler::validateReferencableEntities
EntityReference_SelectionHandler_Generic::__construct	protected	function
EntityReference_SelectionHandler_Generic_comment::entityFieldQueryAlter	public	function	Implements EntityReferenceHandler::entityFieldQueryAlter(). Overrides EntityReference_SelectionHandler_Generic::entityFieldQueryAlter