/**
  * Returns a list of all object brick definitions.
  */
 public function objectBricksAction()
 {
     $this->checkUserPermission("classes");
     $list = new Object\Objectbrick\Definition\Listing();
     $bricks = $list->load();
     $result = array();
     foreach ($bricks as $brick) {
         $item = array("name" => $brick->getKey());
         $result[] = $item;
     }
     $this->encoder->encode(array("success" => true, "data" => $result));
 }