为什么我会尝试获取属性 'username' of non-object 而 "owner_user" 中有信息？

Question

HTML代码

@foreach($posts as $post)
    <div class="container card mt-2" style="width: 32rem;">
    <img src="{{ asset('images')."/".$post->img_url }}" class="card-img-top" alt="img not found">
        <div class="card-body">
            <h5 class="card-title">{{ $post->champion }} </h5>
            <p class="card-text">{{ $post->owner_user->username }}</p>

        </div>
    </div>
@endforeach

Laravel代码

    public function testpage()
    {
        return Posts::with(['OwnerUser','like'])->get();   
    }

当我只是 return 发布 table 时，它有包含用户信息的列 owner_user。关系有效，但是当我在 HTML 代码中 return 时，我在 {{ $post->owner_user->username }} 中得到“Null”。

Answer 1

因为那不是一个单一的对象尝试

@foreach($posts as $post)
    <div class="container card mt-2" style="width: 32rem;">
    <img src="{{ asset('images')."/".$post->img_url }}" class="card-img-top" alt="img not found">
        <div class="card-body">
            <h5 class="card-title">{{ $post->champion }} </h5>
            <p class="card-text">@(foreach  $post->owner_user as $user){{$user->username }}@endforeach</p>
        </div>
    </div>
@endforeach

为什么我会尝试获取属性 'username' of non-object 而 "owner_user" 中有信息？

Why do I get Trying to get property 'username' of non-object while "owner_user" has information in it?

php

laravel

laravel-5.8

为什么我会尝试获取 属性 'username' of non-object 而 "owner_user" 中有信息？

Why do I get Trying to get property 'username' of non-object while "owner_user" has information in it?

php

laravel

laravel-5.8

为什么我会尝试获取属性 'username' of non-object 而 "owner_user" 中有信息？