getModel()::getDB())->where('uid',$uid)->where($field,$value)->count()) > 0; } public function changeDefault(int $uid) { return ($this->getModel()::getDB())->where('uid',$uid)->update(['is_default' => 0]); } public function getAll(int $uid) { return (($this->getModel()::getDB())->where('uid',$uid)); } }