// +---------------------------------------------------------------------- namespace app\common\dao\store\parameter; use app\common\dao\BaseDao; use app\common\model\store\parameter\Parameter; class ParameterDao extends BaseDao { protected function getModel(): string { return Parameter::class; } public function search(array $where) { } public function clear(int $id, string $field) { $this->getModel()::getDB()->where($field, $id)->delete(); } }