只有 JSON 中的第一个值保存到数据库 - Laravel答案

【问题标题】：Only the first value in the JSON saved to Database - Laravel只有 JSON 中的第一个值保存到数据库 - Laravel
【发布时间】：2021-01-08 14:15:42
【问题描述】：

我正在从我试图将数据保存到数据库的表单中接收数据。

在保存第一条记录时会保存多次。

return response()->json($request->all());

JSON

{
   "product_combo_name":"asdfadsf",
   "product_values":"[{\"product_data\":{\"id\":1,\"slug\":\"product-name\",\"sku\":\"product-code\",\"product_name\":\"Product Name\",\"category_id\":1,\"subcategory_id\":1,\"previewImg\":\"http:\/\/localhost\/EcommerceBackend\/public\/\/assets\/images\/product\/thumb\/Product Name.jpeg\",\"hasVariants\":false,\"deleted_at\":null,\"created_at\":\"2020-09-17T07:17:42.000000Z\",\"updated_at\":\"2020-09-17T10:54:24.000000Z\"},\"product_qty\":\"1\",\"product_price\":\"100\",\"product_tax\":\"18\",\"hsn_code\":\"78877\",\"product_line_total\":\"118.00\"},{\"product_data\":{\"id\":1,\"slug\":\"product-name\",\"sku\":\"product-code\",\"product_name\":\"Product Name\",\"category_id\":1,\"subcategory_id\":1,\"previewImg\":\"http:\/\/localhost\/EcommerceBackend\/public\/\/assets\/images\/product\/thumb\/Product Name.jpeg\",\"hasVariants\":false,\"deleted_at\":null,\"created_at\":\"2020-09-17T07:17:42.000000Z\",\"updated_at\":\"2020-09-17T10:54:24.000000Z\"},\"product_qty\":\"1\",\"product_price\":\"100\",\"product_tax\":\"18\",\"hsn_code\":\"197797\",\"product_line_total\":\"118.00\"}]",
   "shipping_charges":"123",
   "total_price":"359.00",
   "combo_total_price":"124.18",
   "product_total_price":"236.00",
   "charge_breakup":"[{\"name\":\"qty\",\"qty\":\"1\",\"per_unit_price\":\"1\",\"tax\":\"18\",\"tax_amount\":\"0.18\",\"line_total_amount\":\"1.18\"}]"
}

我正在尝试将 product_data 保存为单个值，但 JSON 对我来说似乎有点复杂。

当我在 Laravel Controller 中运行 foreach 时，只返回第一个对象，

foreach (json_decode($request->product_values) as $key => $value) {
    # code...
    Product::insert([
    'product_id' => $value->id,
    ]);

    return response()->json(json_encode($value->product_data->id));
}

Response : "1"

charge_breakup 的行为相同。不知道如何破解这个 JSON 响应。

编辑 1：

$value = json_decode($request->product_values);

    return response()->json($value);

Json 响应：

[{"product_data":{"id":1,"slug":"product-name","sku":"product-code","product_name":"Product Name","category_id":1,"subcategory_id":1,"previewImg":"http:\/\/localhost\/EcommerceBackend\/public\/\/assets\/images\/product\/thumb\/Product Name.jpeg","hasVariants":false,"deleted_at":null,"created_at":"2020-09-17T07:17:42.000000Z","updated_at":"2020-09-17T10:54:24.000000Z"},"product_qty":"1","product_price":"100","product_tax":"18","hsn_code":"78877","product_line_total":"118.00"},{"product_data":{"id":1,"slug":"product-name","sku":"product-code","product_name":"Product Name","category_id":1,"subcategory_id":1,"previewImg":"http:\/\/localhost\/EcommerceBackend\/public\/\/assets\/images\/product\/thumb\/Product Name.jpeg","hasVariants":false,"deleted_at":null,"created_at":"2020-09-17T07:17:42.000000Z","updated_at":"2020-09-17T10:54:24.000000Z"},"product_qty":"1","product_price":"100","product_tax":"18","hsn_code":"197797","product_line_total":"118.00"}]

【问题讨论】：

您只获得第一个 ID，因为您在 foreach 中返回。您是否尝试过移动 return 语句？
不要在循环内返回，它只会在第一次运行时打破循环
用 foreach 之外的结果更新了问题

标签： arrays json laravel arraylist eloquent

【解决方案1】：

你只似乎得到一件物品的原因是因为你在 foreach 内返回。

foreach (json_decode($request->product_values) as $key => $value) {
    # code...
    Product::insert([
    'product_id' => $value->id,
    ]);

    return response()->json(json_encode($value->product_data->id));
}

我不确定你想在这里实现什么，但要获取 id 的集合：

$ids = array();
foreach (json_decode($request->product_values) as $key => $value) {
    # code...
    Product::insert([
    'product_id' => $value->id,
    ]);

    array_push($ids, json_encode($value->product_data->id));
}

return response()->json(collect($ids));

【讨论】：