public function count($application_id) { $select = 'DISTINCT a.name'; $from = $this->getTableName() . " AS a, " . ZOO_TABLE_ITEM . " AS b USE INDEX (ID_APPLICATION_INDEX)"; $conditions = array("a.item_id = b.id AND b.application_id = " . (int) $application_id); $options = compact('select', 'from', 'conditions'); return parent::count($options); }