比起模型作用域scope有一种更好的方式：自定义builder

原理如下
Illuminate\Database\Eloquent\Model中

  1.     /**
  2.      * Create a new Eloquent query builder for the model.
  3.      *
  4.      * @param  \Illuminate\Database\Query\Builder  $query
  5.      * @return \Illuminate\Database\Eloquent\Builder|static
  6.      */
  7.     public function newEloquentBuilder($query)
  8.     {
  9.         return new Builder($query);//返回一个builder
  10.     }

因此可以重写模型中该方法

创建自定义builder

  1. namespace App\Builder;
  5. use Illuminate\Database\Eloquent\Builder;
  7. class XBuilder extends Builder
  8. {
  10.     public function X(){
  11.         $this->where("type","x");
  12.         return $this;
  13.     }
  15.     public function Y(){
  16.         $this->where("type","y");
  17.         return $this;
  18.     }
  19. }

模型中重写方法

  1. <?php
  3. namespace App\Model;
  6. use App\Builder\XBuilder;
  7. use Illuminate\Database\Eloquent\Model;
  10. class Foo extends Model
  11. {
  12.     use KpHasTimestamps;
  14.     protected $primaryKey = 'id';
  15.     protected $table = 'foo';
  16.     protected $guarded = [];
  19.     /**
  20.      * 重写方法
  21.      * @param \Illuminate\Database\Query\Builder $query
  22.      * @return XBuilder
  23.      */
  24.     public function newEloquentBuilder($query)
  25.     {
  26.         return new XBuilder($query);
  27.     }
  28. }

查看效果

现有数据
image.png

  1.         dump(Foo::query()->Y()->get());
  2.         dd(Foo::query()->X()->get());

输出结果
image.png