Laravel Mongo多对多关系无法正常工作

问题描述

我有两个在多对多关系中相互关联的mongo文档.一个叫做Lawyer，另一个叫做LawCase.

I have two mongo documents that are related to each other in a many to many relationship. One is called Lawyer and the other LawCase.

我的律师模型具有:

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

我的LawCase模型具有:

My LawCase model has:

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

我要做的就是找到具有特定类别法律案件的律师.

All I am trying to do is find lawyers that have a certain category of law cases.

$lawyers = App\Lawyer::whereHas('cases', function($q){
                            $q->where('category', '=', 'DUI');
                            })->get();

即使我的诉讼文件中包含"DUI"类别，也无法获得任何帮助.

This gets nothing even though I have lawcase documents that have a category of 'DUI'.

当我这样做

$lawyers = App\Lawyer::with('cases')->get();

那给了我一个结果集.只是在哪里有一些问题.我想念什么?

That gets me a result set. Just having some issues with wherehas. What am I missing?

我尝试研究此问题，但看起来其他人可能也有类似的问题:

I tried researching the issue but looks like others may have similar issue:

Laravel + Jenssegers \ Mongodb:哪里"和是否返回空集合

如果哪里不起作用，您将如何做呢?

If whereHas would not work, how would you get about doing this?

更新:

My Lawyer Document

{ 
    "_id" : ObjectId("5945f88c9a89205aae0efea8"), 
    "full_name" : "Some Name ", 
    "active" : true, 
    "updated_at" : ISODate("2017-06-18T03:50:36.849+0000"), 
    "created_at" : ISODate("2017-06-18T03:50:36.849+0000"), 
    "law_case_ids" : [
        "5945f88c9a89205aae0efea9", 
        "5945f88c9a89205aae0efeac", 
        "5945f8b59a89205aae0f3f81", 
        "5955d0ff9a89200a57340db8"
    ]
}

我的LawCase文档

My LawCase Document

{ 
    "_id" : ObjectId("5945f88c9a89205aae0efe9a"), 
    "category" : "DUI", 
    "updated_at" : ISODate("2017-06-18T03:50:36.825+0000"), 
    "created_at" : ISODate("2017-06-18T03:50:36.821+0000"), 
    "lawyer_ids" : [
        "5945f88c9a89205aae0efe99"
    ]
}

推荐答案

这是正确的方法，这将返回案件与类别DUI相匹配的律师.

Here is the correct way to do it, this will return the lawyers who have cases that match the category DUI.

$lawyers = App\Lawyer::with(['cases'=> function($q){
                            $q->where('category', '=', 'DUI');
                            }])->get();

这篇关于Laravel Mongo多对多关系无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！