Laravel （livewire数据表）可以'；我无法访问同一模型的两个关系

我有两个外键与同一个表相关 当我尝试将这两列添加到datatable时，所有数据只解析其中的第一列

我的代码

Column::name('from_city.name')->lable('From'),
Column::name('to_city.name')->lable('To'),

城市

$table->id();
$table->string('name');

旅行

在Trip模型中，我建立了两个关系

public function from_ctiy()
{ return $this->belongsTo(City::class, 'from_ctiy_id'); }
public function to_ctiy()
{ return $this->belongsTo(City::class, 'to_ctiy_id'); }

工作正常，我可以正常访问这两列

$trip->from_city->name;
$trip->to_city->name;

---

但是当我在livewire数据表中创建列时

Column::name('from_city.name')->lable('From'),
Column::name('to_city.name')->lable('To'),

我只从两列中的第一列获取相同的数据

从…起 到 Fcity Fcity Fcity Fcity

U have to build manually the join query like below.

public function builder()
{
    return Trip::query()
        ->leftJoin('City as c1', 'from_ctiy_id', 'c1.id')
        ->leftJoin('City as c2', 'to_ctiy_id', 'c2.id');
}

public function columns()
{
    return [
        Column::name('c1.name')->label("From"),
        Column::name('c2.name')->label("To")
    ];
}