带有ng-repeat的AngularJS中的嵌套注释 [英] Nested comments in AngularJS with ng-repeat

问题描述

我创建了一个指令，用于在AngularJS中显示嵌套注释.它的主要目的是当从API返回JSON时，具有无限注释，如下所示:

I've created a directive for displaying nested comments in AngularJS. The main point of it was to have infinite comments when returned JSON from API would look something like this:

    [
        {
            'id': 66,
            'text': 'This is the first comment.',
            'creator': {
                'id': 52,
                'display_name': 'Ben'
            },
            'respondsto': null,
            'created_at': '2014-08-14T13:19:59.751Z',
            'responses': [
                {
                    'id': 71,
                    'text': 'This is a response to the first comment.',
                    'creator': {
                        'id': 14,
                        'display_name': 'Daniel',
                    },
                    'respondsto': 66,
                    'created_at': '2014-08-14T13:27:13.915Z',
                    'responses': [
                        {
                            'id': 87,
                            'text': 'This is a response to the response.',
                            'creator': {
                                'id': 52,
                                'display_name': 'Ben',
                            },
                            'respondsto': 71,
                            'created_at': '2014-08-14T13:27:38.046Z',
                            'responses': []
                        }
                    ]
                }
            ]
        },
        {
            'id': 70,
            'text': 'Đây là bình luận thứ hai.',
            'creator': {
                'id': 12,
                'display_name': 'Nguyễn'
            },
            'respondsto': null,
            'created_at': '2014-08-14T13:25:47.933Z',
            'responses': []
        }
    ];

因此，在第一级上，我正在此数组上执行ng-repeat:

So on the first level I'm doing ng-repeat on this array:

    <div ng-repeat="comment in comments | orderBy: 'id': true" ng-include="'comment.html'"></div>

然后在comment.html中，我使用相同的模板重复响应:

And then inside of comment.html I'm repeating responses with the same template:

    <div ng-repeat="comment in responses = comment.responses | orderBy: 'created_at': true" ng-include="'comment.html'"></div>

当有10个响应嵌套时，这会给我带来错误:

And this gives me erros when there are 10 nests of responses:

    Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!

现在我真的不需要解决这个错误，但是我的问题是，我怎么知道我在哪个嵌套中，这样在例如巢已达到5级.

Now I don't really need to solve this error, but my question would be, how could I know in which nest I am so that I could disable adding new responses when e.g. 5th level of the nest is reached.

推荐答案

已解决

所以要计算级别，我在响应的ng-repeat中使用了level变量:

SOLVED

So to count levels I'm using level variable inside ng-repeat of responses:

    <div ng-repeat="comment in responses = comment.responses | orderBy: 'created_at': true" ng-include="'comment.html'" ng-init="level = level + 1"></div>

然后在控件上检查该级别，例如不显示控件:

And then on the controls I'm checking that level, e.g. to not show the control:

    ng-hide="level > 5"

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