Php Laravel资源返回空数组

我有通过第三个表获取产品数据的资源，但很难使关系在模型上工作，所以它返回空数组

思维方式

产品有许多条形码

条形码可能有（以下）损坏

在损坏中，我们通过条形码表获得产品（我们存储

条形码\u id

）

我还包括了每个列的可填充部分，以便您可以看到数据库中的列

密码

产品型号

class Product extends Model
{

    protected $fillable = [
        'name', 'slug', 'stock', 'cover', 'description', 'sku', 'price', 'discount',
    ];

    public function barcodes()
    {
        return $this->hasMany(Barcode::class);
    }
}

class Barcode extends Model
{
    protected $fillable = [
        'product_id', 'sku', 'serial_number', 'price', 'discount',
    ];

    public function product()
    {
        return $this->belongsTo(Product::class);
    }

    public function damages()
    {
        return $this->hasMany(DamageProduct::class);
    }
}

class DamageProduct extends Model
{
    protected $fillable = [
        'outlet_id', 'user_id', 'barcode_id', 'description',
    ];

    public function barcode()
    {
        return $this->belongsTo(Barcode::class);
    }

    public function user()
    {
        return $this->belongsTo(User::class, 'user_id', 'id');
    }
}

条形码型号

class Product extends Model
{

    protected $fillable = [
        'name', 'slug', 'stock', 'cover', 'description', 'sku', 'price', 'discount',
    ];

    public function barcodes()
    {
        return $this->hasMany(Barcode::class);
    }
}

class Barcode extends Model
{
    protected $fillable = [
        'product_id', 'sku', 'serial_number', 'price', 'discount',
    ];

    public function product()
    {
        return $this->belongsTo(Product::class);
    }

    public function damages()
    {
        return $this->hasMany(DamageProduct::class);
    }
}

class DamageProduct extends Model
{
    protected $fillable = [
        'outlet_id', 'user_id', 'barcode_id', 'description',
    ];

    public function barcode()
    {
        return $this->belongsTo(Barcode::class);
    }

    public function user()
    {
        return $this->belongsTo(User::class, 'user_id', 'id');
    }
}

损坏产品型号

class Product extends Model
{

    protected $fillable = [
        'name', 'slug', 'stock', 'cover', 'description', 'sku', 'price', 'discount',
    ];

    public function barcodes()
    {
        return $this->hasMany(Barcode::class);
    }
}

class Barcode extends Model
{
    protected $fillable = [
        'product_id', 'sku', 'serial_number', 'price', 'discount',
    ];

    public function product()
    {
        return $this->belongsTo(Product::class);
    }

    public function damages()
    {
        return $this->hasMany(DamageProduct::class);
    }
}

class DamageProduct extends Model
{
    protected $fillable = [
        'outlet_id', 'user_id', 'barcode_id', 'description',
    ];

    public function barcode()
    {
        return $this->belongsTo(Barcode::class);
    }

    public function user()
    {
        return $this->belongsTo(User::class, 'user_id', 'id');
    }
}

损坏产品资源

class DamageProductsResource extends JsonResource
{
    public function toArray($request)
    {
        $arrayData = [
            'id' => $this->id,
            'outlet' => new OutletsResource($this->whenLoaded('outlet')),
            'user' => new usersResource($this->whenLoaded('user')),
            'barcode' => new BarcodeResource($this->whenLoaded('barcode')),
            'description' => $this->description,
        ];

        return $arrayData;
    }
}

public function toArray($request)
{
    $arrayNull = [
        'id' => $this->id,
        'product' => new ProductsResource($this->whenLoaded('product')),
        'sku' => $this->sku,
        'serial_number' =>  $this->serial_number ? (Int) $this->serial_number : null,
        'price' => (Int) $this->price,
        'discount' => $this->discount ? (Int) $this->discount : null,
    ];
    return $arrayNull; // this is missing
}

结果

有什么想法吗？

使现代化 如果您需要查看

BarcodeResource

资源的外观，它就是：

public function toArray($request)
{
        $arrayNull = [
            'id' => $this->id,
            'product' => new ProductsResource($this->whenLoaded('product')),
            'sku' => $this->sku,
            'serial_number' =>  $this->serial_number ? (Int) $this->serial_number : null,
            'price' => (Int) $this->price,
            'discount' => $this->discount ? (Int) $this->discount : null,
        ];
}

---

我想说，您只是忘记了

BarcodeResource

中的

return

语句

class DamageProductsResource extends JsonResource
{
    public function toArray($request)
    {
        $arrayData = [
            'id' => $this->id,
            'outlet' => new OutletsResource($this->whenLoaded('outlet')),
            'user' => new usersResource($this->whenLoaded('user')),
            'barcode' => new BarcodeResource($this->whenLoaded('barcode')),
            'description' => $this->description,
        ];

        return $arrayData;
    }
}

public function toArray($request)
{
    $arrayNull = [
        'id' => $this->id,
        'product' => new ProductsResource($this->whenLoaded('product')),
        'sku' => $this->sku,
        'serial_number' =>  $this->serial_number ? (Int) $this->serial_number : null,
        'price' => (Int) $this->price,
        'discount' => $this->discount ? (Int) $this->discount : null,
    ];
    return $arrayNull; // this is missing
}

---

这是绝对正确的，但不知何故，产品数据不包括条形码资源<代码>屏幕截图问题来自控制器，我还需要在

with（）中添加条形码关系

。多谢各位<代码>->带有（['outlet'、'barcode'、'barcode.product'、'user']）