Laravel 5.2 - Eloquent`with`忽略空数据列表

Question

我有2个这样雄辩的模型 -

广告 -

class Advertisement extends Model
{
    protected $table        =   'advertisements';           //Table Name

    protected $fillable     =   [
                                    'user_id',
                                    'category_id',
                                    'sub_category_id',
                                    'title',
                                    'price',
                                    'description',
                                    'address',
                                    'location_lat',
                                    'location_lon',
                                    'is_active'
                                ];

    public function AdvertisementImages()
    {
        return $this->hasMany('App\AdvertisementImage', 'advertisement_id', 'id');
    }
}

和 AdvertisementImage -

class AdvertisementImage extends Model
{
    protected $primaryKey   =   null;
    public $incrementing    =   false;
    public $timestamps      =   false; // disable all behaviour
    protected $table        =   'advertisement_images';         //Table Name

    protected $fillable     =   [
                                    'advertisement_id',
                                    'image_name'
                                ];
}

我想用它的图像来获取广告数据。所以我正在做的就是这个 -

Advertisement::withTrashed()
    ->with('AdvertisementImages')
    ->orderBy('created_at', 'desc')
    ->get();

得到这样的东西 -

answer

对我来说非常好。但我的问题是，如果任何广告没有任何图像，那么添加不包括。所以，我不能得到这样的结果 -

[
  {
    "id": 4,
    "user_id": 4,
    "title": "Anything",
    "price": 12,
    "description": "sd sdf sdf sdf 123",
    "address": "Baridhara, Dhaka, Dhaka Division, Bangladesh",
    "advertisement_images": [

    ]
  },
  {
    "id": 2,
    "user_id": 4,
    "title": "Anything new",
    "price": 12,
    "description": "sd sdf sdf sdf 123",
    "address": "Boshudhara, Dhaka, Dhaka Division, Bangladesh",
    "advertisement_images": [
      {
        "image_name": "4a06cb3f00aab0545e6b6d.jpg"
      },
      {
        "image_name": "4a2a46b5bbc7fd4c2dc64c.jpg"
      },
      {
        "image_name": "4acababf2bea9aa42b3188.jpg"
      }
    ]
  },
  {
    "id": 3,
    "user_id": 4,
    "title": "new",
    "price": 12,
    "description": "sd sdf sdf sdf 123",
    "address": "Baridhara, Dhaka, Dhaka Division, Bangladesh",
    "advertisement_images": [

    ]
  },
  {
    "id": 1,
    "user_id": 4,
    "title": "13",
    "price": 12,
    "description": "123",
    "advertisement_images": [
      {
        "image_name": "4a0c5735b4dafdda6e957f.jpg"
      }
    ]
  }
]

  

ID = 4且id = 3，应包含此类元素

那么，我还需要做些什么来包括这些结果（包括在eloquent中的emptl列表）？

提前感谢您的帮助。