Question

使用一个查询获取第三个表数据的最佳方法是什么。

User   :   id | name    
Event  :   id | user_id  
Likes  :   id | user_id | event_id

Here is my  Eloquent Query

$events = Event::with('likes','users')->get();

return view('events',compact('events'));

In views i am iterating over all events like this,
User has multiple events as well as multiple likes in relation model.


@foreach($events as $event)

 {{ $event->name }}
 {{ $like_id }} //show like id if it is liked by the user

     // I have to execute another loop only to check if it is liked or not 
      @foreach($row->likes as $like)

             @if(Auth::id() == $like->user_id)
                   Liked
             @endif
      @endforeach

@endforeach

现在我需要检查登录用户是否喜欢此活动？以及他们是否喜欢的所有活动？

Answer 1

您可以尝试：

@foreach($events as $event)

    {{ $event->name }}
    {{ $event->likes->count() }}

    @if($event->likes->contains('user_id', Auth::id()))
         Liked
    @endif

@endforeach

使用laravel eloquent通过一个查询从数据透视表中获取数据

1 个答案: