我有一个与车辆关联的RepairRequest模型。classRepairRequestextends\Eloquent{publicfunctionvehicle(){return$this->belongsTo('Vehicle');}}classVehicleextends\Eloquent{publicfunctionrequests(){return$this->hasMany('RepairRequest');}}我想获取与给定RepairRequest关联的车辆的所有RepairRequests，所以我这样做了returnRepairRequests::find($id)