Thinkphp5 关联模型

<?phpnamespace app\common\model;use think\Model;class Attr extends Model{ ???}

1 <?php2 namespace app\common\model;3 use think\Model;4 5 class Article extends Model{6 7 }

 1 <?php 2 namespace app\common\model; 3 use think\Model; 4 ?5 class Attr extends Model{ 6 ????// 关联文章模型 7 ????public function article() 8 ????{ 9 ????????return $this->hasMany(‘article‘,‘pid‘,‘id‘);10 ????????//return $this->hasOne(‘article‘,‘pid‘);11 ????}12 ????// 可用13 ????public function s(){14 ????????$id = 9;15 ????????$attr = $this->get($id);16 ????????// 查询单条17 ????????//$res = $attr->article()->find();18 ????????// 查询多条19 ????????$res = $attr->article()->select();20 ????????return $res;21 22 ????}23 24 }

 1 <?php 2 namespace app\index\controller; 3 use think\Controller; 4 use think\Model; 5 class Index extends Controller 6 { 7 ????protected $model; 8 ????public function _initialize() 9 ????{10 ????????parent::_initialize(); // TODO: Change the autogenerated stub11 ????????$this->model = model(‘attr‘);12 ????}13 14 ????public function index(){15 ????????$d = $this->model->s();16 ????????print_r($d);17 ????}18 19 ???20 21 }