Question

当我使用Laravel eloquent - 关系（One To Many）时，结果为NULL。我在＆＃34; work_hour＆＃34;中设置了数据。表，其中＆＃34; workers_id＆＃34;有价值2，并且＆＃34;工人＆＃34; id为2的表我按照文档＆＃34; Laravel relationships＆＃34;

我的架构如下所示：

public function up()
    {
        Schema::create('work_hour', function($table){
            $table->increments('id');
            $table->integer('worked_hour');

            $table->time('worked_from');
            $table->time('worked_to');
            $table->integer('workers_id')->unsigned();
            $table->foreign('workers_id')->references('id')->on('workers');
            $table->integer('workday_id');
            $table->integer('offer_id');
        });
    }

PS：列workday_id，offer_id不设置为外国，但是！

模型看起来像这样：

class Worker extends Eloquent{

    protected $fillable = ['first_name', 'last_name'];

}

class Workhour extends Eloquent{

    protected $table    = 'work_hour';

    public function worker(){
        return $this->belongsTo('Worker','workers_id');
    }

}

控制器 PS：我在SO上搜索了同样的问题，我尝试了一些意见，然后我对它们进行了评论

class WorkerController extends BaseController {
    protected $table    = 'workers';
....
    public function show($id){
        $worker     = Worker::find($id);

    //  $workhour   = Workhour::where('workers_id','=',$worker->id)->get(); 
    // casting the result: works $workhour->toArray()

    //  $workhour   = Worker::find($id)->with('workhour')->get(); 
    //Call to undefined method Illuminate\Database\Query\Builder::workhour()

    //  $workhour   = Worker::with('workhour')->where('id',2)->get(); 
    //Call to undefined method Illuminate\Database\Query\Builder::workhour()

    $workhour   = Worker::find($id)->workhour; 
    // null

        dd($workhour);
        return View::make('worker.show',['worker' => $worker,'workhour'=>$workhour]);
    }

    public function workhour(){
      return $this->hasMany('Workhour','workers_id');
    }


}

我打电话给＆＃34; show.blade.php＆＃34;与＆＃34; ... / public / worker / 2＆＃34; （Laravel 4）我究竟做错了什么？

Answer 1

您只需将关系添加到模型而不是控制器：

class Worker extends Eloquent{

    protected $fillable = ['first_name', 'last_name'];

    public function workhour(){
      return $this->hasMany('Workhour','workers_id');
    }
}

使用Laravel eloquent关系（一对多）返回NULL

1 个答案: