比较来自不同控制器的2个GET对象

时间:2015-06-24 08:35:23

标签: javascript angularjs angularjs-service angularjs-controller angularjs-http

我有来自2个不同控制器的2个(数组)对象。

对象1(名称控制器1):

[{id:1,"name":"jakov"},...]

对象2(昵称控制器2):

[{id:1, "nickname" : "jandric", "nameId" :1, "title" : "master"},...]

我通过服务从控制器1广播对象:

$http.get('names/').success(function(data) {
            sharedService.broadcastItem(data);
});

我在Controller 2中处理广播对象:

$scope.$on('handleBroadcast', function() {
            $scope.names= sharedService.message;
});

控制器2也有GET请求:

$http.get('nicknames/').success(function (data) {
           $scope.nicknames = data;
});

我有简单的表格,我想要显示:nicknameId,昵称,名称和标题。

这样的事情:

<div ng-controller="Nickname">
    <table>
        <tr>
            <th>nicknameId</th>
            <th>nickname</th>
            <th>name</th>
            <th>title</th>
        </tr>
        <tr ng-repeat="nick in nicknames">
            <td>{{nick.id}}</td>
            <td>{{nick.nickname}}</td>
            <td ng-controller="Name">{{??????}}</td> //GET name request trigger
            <td>{{nick.title}}</td>
        </tr>
    </table>
</div>

如何从第一个对象获取名称,对于给定的nameId,在第二个对象中获取名称?

Plz帮助:D

更新

我设法用html这样做:

    <div ng-controller="Nickname">
        <table>
            <tr>
                <th>nicknameId</th>
                <th>nickname</th>
                <th>name</th>
                <th>title</th>
            </tr>
            <tr ng-repeat="nick in nicknames">
                <td>{{nick.id}}</td>
                <td>{{nick.nickname}}</td>
                <td ng-controller="Name">
                   <div ng-repeat="name in names">
                      <div ng-if="nick.nameId === name.id">
                          {{name.name}}
                      </div>
                   </div>
                </td>
                <td>{{nick.title}}</td>
            </tr>
        </table>
    </div>

所以我在for循环中使用for循环。有更简单的答案吗?

2 个答案:

答案 0 :(得分:2)

我希望我的问题是正确的: 在昵称控制器 $ scope 中创建一个索引,该索引通过id映射到名称:

/**
 *
 * @param {Array.<obj>} source: The array of objects the index should be created with.
 * @param {string} property: The property that shall be used as key for the new index
 * @return {object} provides access to all objects by the chosen property
 */
var buildIndex = function(source, property) {
    var temp = {};
    for(var i = 0, len = source.length; i < len; ++i) {
        temp[source[i][property]] = source[i];
    }
    return temp;
};

然后您可以访问模板中的索引:

<div ng-controller="Nickname">
<table>
    <tr>
        <th>nicknameId</th>
        <th>nickname</th>
        <th>name</th>
        <th>title</th>
    </tr>
    <tr ng-repeat="nick in nicknames">
        <td>{{nick.id}}</td>
        <td>{{nick.nickname}}</td>
        <td>{{index[nick.id].name}}</td>
        <td>{{nick.title}}</td>
    </tr>
</table>

答案 1 :(得分:0)

试试这个

<div ng-controller="Nickname">
    <table>
        <tr>
            <th>nicknameId</th>
            <th>nickname</th>
            <th>name</th>
            <th>title</th>
        </tr>
        <tr ng-repeat="nick in nicknames">
            <td>{{nick.id}}</td>
            <td>{{nick.nickname}}</td>
            <td ng-controller="Name">
                <span ng-reapeat="n in names">
                <span ng-if="nick.nameId == n.id">{{n.name}}</span>
                </span>
            </td> //GET name request trigger
            <td>{{nick.title}}</td>
        </tr>
    </table>
</div>