显示来自2表的数据 - 此集合实例上不存在Property [name]

Question

我尝试从表课程和测试中显示数据，关系是一对多的。

course name   | test name  
___________________________
course name1  | test name 1     
course name2  | test name 2

等等

public $table = 'Course';

public function test()
{
    return $this->hasMany('App\Test');
}


public $table = 'Test';

protected $fillable = ['name',];

public function course()
{
    return $this->belongsTo('App\Course');
}

TestController.php

public function courses() {

 $courses = Course::with(['test'])->get();,
 return view('admin.test.list_course', [
              'courses' => $courses,

         ]);
 }

list_course.blade.php

 @foreach($courses as $course)

        <tr>
            <td>
                {{ $course->name }}
            </td>

            <td>
             {{ $course->test->name }}
            </td>         

        </tr>
    @endforeach

我得到错误

此集合实例上不存在Property [name]

拜托，你知道哪里有错误吗？谢谢！！

Answer 1

您在课程模型上的test关系是一对多的关系，这意味着每个课程可以有多个测试，因此关系将返回属于课程的所有测试的collection。要在视图中显示它，您可以遍历所有测试：

@foreach($courses as $course)
    <tr>
        <td>
            {{ $course->name }}
        </td>
        <td>
            @foreach($course->test as $test)
                {{ $test->name }} <br>
            @endforeach
        </td>
    </tr>
@endforeach