Question

我有admin表，admin有很多form。每个form都会分配到其信息中心显示的admin。

问题是form可能没有分配给任何admin。

我希望得到所有forms任何帮助表示赞赏。谢谢！

修改：Admin通过自定义关系与form相关Here

总结一下，

Admin.php

public function states(){
    return $this->belongsToMany('App\State');
}

public function cities()
{
    return $this->belongsToMany('App\City');
}

//gets the forms in  this admin's city or state
//Let me know if there is a better way to do this, i feel like im overdoing stuff here 
public function forms()
{  
        //cities
        $cities = $this->cities->pluck('name'); 
        //states
        $states = $this->states->pluck('name');

        $users =  User::whereIn('state',$states)>orWhereIn('city',$cities)->get()->pluck('id');

        $forms = Form::whereIn('user_id',$users);

        return $forms;

}

我想获取不属于任何admin

的表单

Answer 1

您可能正在寻找doesntHave。

{{1}}

Answer 2

为什么不简单地反过来呢？

$forms = Form::whereNotIn('user_id', $users);

Laravel - 获取不在自定义hasMany关系中的行

2 个答案: