合并模型并按时间戳排序 created_at

Question

我正在制作一个 activity 页面，它将显示用户的 activity，我想知道解决这个问题的最佳方法是显示不同的 activity 和在合并的所有表的 created_at 时间戳上排序 activity。

目前我有

控制器

    public function getActivity()
      {
        $blogs = Blogs::where('blogs.user_id', '=', Auth::User()->id)->orderBy('created_at', 'DESC')
        $comments = Comments::where('comments.user_id', '=', Auth::User()->id)- >orderBy('created_at', 'DESC')
        $forumposts = Forumpost::where('forumposts.user_id', '=', Auth::User()->id)->orderBy('created_at', 'DESC')

        return view('myactivity')->withBlogs($blogs)->withComments($comments)->withForumposts($forumposts);

      }

查看：

@foreach($blogs as $blog)
    <p>You posted {{$blog->blogname}} at {{$blog->created_at}}</p>

@endforeach 
@foreach($comments as $comment)
    <p>You posted {{$comment->comment}} at {{$comment->created_at}}</p>

@endforeach 
@foreach($forumposts as $forumpost)
    <p>You posted {{$forumpost->post}} at {{$forumpost->created_at}}</p>

@endforeach

上面代码的问题是它没有合并到一个 created_at，它本质上是三个不同的 created_at 列表，我如何将它们合并成一个？

Answer 1

试试这个：

$activities = $blogs->toBase()
    ->merge($comments)
    ->merge($forumposts)
    ->sortByDesc('created_at');

->toBase() 是必需的，否则具有相同 id 的模型将被合并。

然后在您看来区分它们：

@foreach($activities as $activity)
    @if($activity instanceof \App\Blogs)

    @endif
@endforeach

合并模型并按时间戳排序 created_at

Merging models and ordering by timestamps created_at

laravel

laravel-5

laravel-5.4