null, 'object_name' => null, 'object_type' => null, 'parent_zone_id' => null, 'is_global' => 'n', ); protected function renderParent_zone_id() { return $this->renderZoneProperty($this->parent_zone_id, 'parent_zone'); } protected function renderIs_global() { // Global is a reserved word in SQL, column name was prefixed if ($this->is_global === 'y') { return c::renderKeyValue('global', c::renderBoolean($this->is_global)); } else { return ''; } } }