[Laravel 5.7]我在两个实体(用户,语音)之间有一个多对一关系,并且在我的项目中不起作用。
用户迁移:
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('n_name');
$table->string('n_photo');
$table->string('n_gender');
});
语音迁移:
Schema::create('voices', function (Blueprint $table) {
$table->increments('id');
$table->string('voice');
$table->integer('n_id')->unsigned();
$table->foreign('n_id')->references('id')
->on('users')->onDelete('cascade');
});
用户模型:
class User extends Model
{
public function voices(){
return $this->hasMany(Voice::class);
}
}
语音模型:
class Voice extends Model
{
public function user(){
return $this->belongsTo(User::class, 'n_id');
}
}
在我的控制器中,函数“索引”如下所示:
public function index()
{
$user= User::all();
$voices = $user->voices()::get(); -- error <described below>
return view('index', compact('user', 'voices'));
}
当我想获取每个用户的声音时,它给我一个错误: “方法Illuminate \ Database \ Eloquent \ Collection :: voices不存在。”
我的视图如下:
@if($n->voices)
@foreach($n->voices as $voice)
<audio controls src="voices/{{$voice->voice}}"></audio><br/>
@endforeach
@endif
我希望我很好地解释了这个问题,并等待解决方案。
答案 0 :(得分:0)
很抱歉,我上一封邮件中有您遇到的问题。
您无法在COLLECTION实体上获取关系。
您的控制器应如下所示:
public function index()
{
$user= User::with('voices')->get();
return view('index', compact('user'));
}
您的刀片应该看起来像:
@foreach($users as $user)
@foreach($user->voices as $voice)
<audio controls src="voices/{{$voice->voice}}"></audio><br/>
@endforeach
@endif
它对您有用吗?
答案 1 :(得分:0)
尝试使用您的控制器:
$users = User::with('voices')->get();
我以这种方式使用它,它对我来说正常工作。