AngularJS：使用对象数组的数组字段进行ng-repeat

Question

I have a json structure: 我有一个json结构：

let total_price = "£100";

let product_groups = [
    {
        "name": "group 1",
        "summary": "group 1 summary",
        "products": [
            {
                "name": "product 1",
                "price": "£10",
                ...
            }, 
            ...
        ]
    },
    ...
]

I am trying to flatten this and display it using a table in the following form 我试图压扁它并使用下表中的表格显示它

<table class="table">
    <thead>
        <tr>
            <th>Group Name</tr>
            <th>Product Name</tr>
            <th>Product Price</tr>
        </tr>
     </thead>
     <tbody>
         <tr ng-repeat="group in product_groups">
             <td>{{group.name}}</td>
             <td>{{product.name}}</td>
             <td>{{product.price}}<td>
         </tr>
         <tr>
             <th colspan="2">Total</th>
             <td>{{total_price}}</td>
         </tr>
     </tbody>
</table>

But this obviously doesnt give me access to each product. 但这显然不能让我访问每个产品。 Is there a way I can do this using an ng-repeat ? 有没有办法可以使用ng-repeat来做到这一点？ Or will I need to flatten my data structure first in the controller? 或者我是否需要首先在控制器中展平我的数据结构？

Answer 1

You can use nested ng-repeat' and use ng-repeat-start and ng-repeat-end` try the following. 您可以使用嵌套的ng-repeat' and use ng-repeat-start and ng-repeat-end`尝试以下操作。

 var app = angular.module('plunker', []); app.controller('MainCtrl', function($scope) { $scope.product_groups = [ { "name": "group 1", "summary": "group 1 summary", "products": [ { "name": "product 1", "price": "£10", }, { "name": "product 1", "price": "£10", }, ] }, { "name": "group 2", "summary": "group 2 summary", "products": [ { "name": "product 21", "price": "£20", }, { "name": "product 15", "price": "£80", }, ] } ]; });

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <body ng-app="plunker"> <div ng-controller="MainCtrl"> <table class="table"> <thead> <tr> <th>Group Name</th> <th>Product Name</th> <th>Product Price</th> </tr> </thead> <tbody> <tr ng-repeat-start="group in product_groups"></tr> <tr ng-repeat="product in group.products"> <td>{{group.name}}</td> <td>{{product.name}}</td> <td>{{product.price}}</td> </tr> <tr ng-repeat-end></tr> </tbody> </table> </div> </body>

Answer 2

Hi try below solution 嗨尝试以下解决方案

    $scope.newArray = [];

    let product_groups = [
        {
            "name": "group 1",
            "summary": "group 1 summary",
            "products": [
                {
                    "name": "product 1",
                    "price": "£10",
                }, 
            ]
        },
    ];

for(var i = 0; i< product_groups.length; i++) {
   for(var j =0; j< product_groups[i].products.length; j++) {
    var flattenProduct = {
                           gname:product_groups[i].name, 
                           name:product_groups[i].products[j].name,
                           price : product_groups[i].products[j].price
                        };
        $scope.newArray.push(flattenProduct );
 }

}

And Then call in html like below: 然后调用html如下：

<table class="table">
    <thead>
        <tr>
            <th>Group Name</tr>
            <th>Product Name</tr>
            <th>Product Price</tr>
        </tr>
     </thead>
     <tbody>
         <tr ng-repeat="p in newArray">
             <td>{{p.gname}}</td>
             <td>{{p.name}}</td>
             <td>{{p.price}}<td>
         </tr>
     </tbody>
</table>

Answer 3

You should flatten your JSON. 你应该弄平你的JSON。 I suggest changing your structure from: 我建议改变你的结构：

product_groups = [{
  "name": "group 1",
  "summary": "group 1 summary",
  "products": [{
      "name": "product 1",
      "price": "£10"
    },
    {
      "name": "product 2",
      "price": "£20"
    }
  ]
}]

to: 至：

product_groups = [{
    "name": "group 1",
    "summary": "group 1 summary",
    "product": {
      "name": "product 1",
      "price": "£10"
    }
  },
  {
    "name": "group 1",
    "summary": "group 1 summary",
    "product": {
      "name": "product 2",
      "price": "£20"
    }
  }
]

Then you can simply use this example: 然后你可以简单地使用这个例子：

 var app = angular.module('myApp', []); app.controller('myCtrl', function($scope) { $scope.product_groups = [{ "name": "group 1", "summary": "group 1 summary", "product": { "name": "product 1", "price": "£10", } }, { "name": "group 1", "summary": "group 1 summary", "product": { "name": "product 2", "price": "£20", } } ] });

 <!DOCTYPE html> <html> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script> <body> <div ng-app="myApp" ng-controller="myCtrl"> <table class="table"> <thead> <tr> <th>Group Name</th> <th>Product Name</th> <th>Product Price</th> </tr> </thead> <tbody> <tr ng-repeat="group in product_groups"> <td>{{group.name}}</td> <td>{{group.product.name}}</td> <td>{{group.product.price}} <td> </tr> </tbody> </table> </div> </body> </html>

Answer 4

在现有的ng-repeat中使用新的ng-repeat，就像嵌套循环一样。

AngularJS：使用对象数组的数组字段进行ng-repeat

问题描述

4 个解决方案

解决方案1
2 2018-08-21 10:33:12

解决方案2
1 2018-08-21 10:28:05

解决方案3
1 已采纳 2018-08-21 10:32:27

解决方案4
-1 2018-08-21 10:24:37

AngularJS：使用对象数组的数组字段进行ng-repeat

问题描述

4 个解决方案

解决方案1 2 2018-08-21 10:33:12

解决方案2 1 2018-08-21 10:28:05

解决方案3 1 已采纳 2018-08-21 10:32:27

解决方案4 -1 2018-08-21 10:24:37

解决方案1
2 2018-08-21 10:33:12

解决方案2
1 2018-08-21 10:28:05

解决方案3
1 已采纳 2018-08-21 10:32:27

解决方案4
-1 2018-08-21 10:24:37