Question

使用AngularJS，我正在迭代一个JSON对象，该对象包含一个包含竞争对象数组的事件对象数组。

我希望在表格中显示每个event，然后在competition中显示每个td，但每行只显示三个单元格

我正在使用ng-repeat为每个事件返回一个表格列表，但是我很难将比赛分成每{3}个新<tr>个<td>

除了从JSON重建我自己的大型对象之外，我在Angular中描述的最佳方法是什么？

当前观点：

<table ng-repeat="listing in listings">
    <tr>
        <th colspan="3">{{listing.name}}</th>
    </tr>
    <tr>
        <td ng-repeat="competition in listing.competitions">
            {{competition.id}} - {{competition.name}}
        </td>
    </tr>
</table>

期望的输出：

<table>
    <tr>
        <th colspan="3">Event Name</th>
    </tr>
    <tr>
        <td>competition id - competition name</td>
        <td>competition id - competition name</td>
        <td>competition id - competition name</td>
    </tr>
    <tr>
        <td>competition id - competition name</td>
        <td>competition id - competition name</td>
        <td>competition id - competition name</td>
    </tr>
</table>

控制器：

app.controller('EventsCtrl', function ($scope, $http) {
  $scope.loading = true;

  $http.get('scripts/JSON/events.json').then(function (response) {
    var listings = response['data'].events;

    $scope.listings = listings;
  });
});

events.json

{
"events": [
    {
        "id": 418,
        "name": "et ullamco",
        "competitions": [
            {
                "id": 933,
                "name": "qui in deserunt occaecat et",
                "startTime": 1381092189
            },
            {
                "id": 853,
                "name": "eu enim ex incididunt do",
                "startTime": 1380708266
            },
            {
                "id": 5738,
                "name": "ad est ut aliquip et",
                "startTime": 1381366623
            },
            {
                "id": 7599,
                "name": "sit ex voluptate aliqua dolor",
                "startTime": 1381284106
            },
            {
                "id": 7481,
                "name": "laborum consequat deserunt do aliqua",
                "startTime": 1380874273
            },
            {
                "id": 3441,
                "name": "amet reprehenderit sint sunt proident",
                "startTime": 1380554850
            },
            {
                "id": 1959,
                "name": "ullamco minim minim in voluptate",
                "startTime": 1380651981
            }
        ]
    },

Answer 1

您正在使用表，但数据的语义表明您有一个列表列表。您应该考虑使用<ul><li>而不是网格输出。

<ul ng-repeat="listing in listings">
    <li>
        <h2>{{listing.name}}</h2>
        <ul ng-repeat="competition in listing.competitions">
            <li>
              {{competition.id}} - {{competition.name}}
            </li>
        </ul>
    </li>
</ul>

使用上述HTML，您可以非常轻松地使用CSS实现所需的布局。在Twitter Bootstrap或Foundation中查看“块网格”以获取示例。表通常只应用于实际表格的数据。

<强>然而...

您的问题仍然可以回答，因为可能有其他原因以您建议的方式替换模板。你可以使用一个函数来一次三个：

<table ng-repeat="listing in listings">
    <tr>
        <th colspan="3">{{listing.name}}</th>
    </tr>
    <tr ng-repeat="group in competitions">
        <td ng-repeat="competition in group">
            {{competition.id}} - {{competition.name}}
        </td>
    </tr>
</table>

在您的控制器中，您可以创建一个“列表列表”以绑定到嵌套的转发器

// Adapted from Fresheyeball's solution

$scope.competitions = []
compSet = []
for(var i; i < $scope.listings.competitions; i++){
   var competition = $scope.listings.competitions[i];
   if( i % 3 ){
      $scope.competitions.push(compSet);
      compSet = [];
   }
   compSet.push(competition);
}

每3个项目拆分ng-repeat

1 个答案: