我有三个表,产品,类别和图像。类别和图像表与产品表有关系。当我已经成功使用$all_product = Product::with('category','image')->get();
产品信息类别信息和图像信息显示时,我想要的是[[问题:如何检索图像数组的第一个值?
"all_objects": [
{
"id": 1,
"name": "samsung",
"price": "2000",
"category_id": 1,
"created_at": "2020-02-17 13:27:24",
"updated_at": "2020-02-17 13:27:24",
"category": {
"id": 1,
"category_name": "android",
"created_at": "2020-02-17 13:26:42",
"updated_at": "2020-02-17 13:26:42"
},
"image": [
{
"id": 1,
"image_name": "image_787.jpeg",
"product_id": 1,
"created_at": "2020-02-17 13:27:25",
"updated_at": "2020-02-17 13:27:25"
},
{
"id": 2,
"image_name": "image_539.jpeg",
"product_id": 1,
"created_at": "2020-02-17 13:27:25",
"updated_at": "2020-02-17 13:27:25"
},
{
"id": 3,
"image_name": "image_606.jpeg",
"product_id": 1,
"created_at": "2020-02-17 13:27:25",
"updated_at": "2020-02-17 13:27:25"
},
{
"id": 4,
"image_name": "image_102.jpeg",
"product_id": 1,
"created_at": "2020-02-17 13:27:26",
"updated_at": "2020-02-17 13:27:26"
}
]
},
$all_product = App\Product::with(['category','image' => function ($query) {
$query->first();
}])->get();
请参见Constraining Eager Loads