结果中相同名称的Laravel重命名关系

Question

在这里你可以看到我有两个car_model主表字段和关系名称:

AppModelsProduct {#1478 ▼
#connection: "mysql"
#table: "products"
...
#escapeWhenCastingToString: false
#attributes: array:21 [▼
"id" => 1
"company_id" => 1
...
"car_model" => "test"
...
]
#original: array:21 [▶]
...
#relations: array:5 [▼
"company" => AppModelsCompany {#1506 ▶}
"car_model" => AppModelsCarModel {#1508 ▼
#connection: "mysql"
#table: "car_models"
#attributes: array:6 [▼
"id" => 1
"title" => "test"
"created_at" => ":07:25"
"updated_at" => ":07:58"
]
...
+mediaConversions: []
+mediaCollections: []
#deletePreservingMedia: false
#unAttachedMediaLibraryItems: []
}
...
}

当我试图获得car_model的关系，并有两个car_model我怎么能得到关系数据?例如:

$products->first()->car_model->title

Product模型:

public function car_model(): BelongsTo
{
return $this->belongsTo(CarModel::class);
}

和my query:

$this->products = Product::with(
[
'car_model',
]
)->get();

Answer 1

我建议您将关系重命名为car_models或car_model以外的其他名称:

public function car_models(): BelongsTo
{
return $this->belongsTo(CarModel::class);
}

和query可以更改为

$this->products = Product::with(
[
'car_models',
]
)->get();

然后返回

$products->first()->car_models->title

Answer 2

我找到了解决方案。在将object转换为array后，我可以访问car_model作为relationship:

$i=$products->first()->toArray();
echo $i['car_model']['title'];

或

echo ($products->first()->toArray())['car_model']['title']