在AngularJS中对嵌套ng-repeat的元素进行排序 [英] Sorting elements in AngularJS for nested ng-repeat

问题描述

我正在使用引导程序来显示项目网格，每行具有3列。为了实现此目的，我使用ng-repeat两次，如下所示。

I am using bootstrap to display a grid of projects with each row having 3 columns. In order to accomplish this, I am using ng-repeat twice like below.

<div class="row" ng-repeat="chunk in projects">
  <div class="col-sm-4" ng-repeat="project in chunk | orderBy:'title'">
    {{project.title}}
  </div>
</div>    

我希望能够根据其标题字段对项目进行排序。应用过滤器只会对整个列表的一部分进行排序，即在块级别而非项目级别进行排序。

I want to be able to sort the project based on its title field. Applying a filter only sorts a subset of the whole list i.e. sorts at the chunk level rather than the projects level.

var projects = [[{"title":"Z"},{"title":"A"},{"title":"M"}],
  [{"title":"Z"},{"title":"A"},{"title":"M"}]];

orderBy发生后，行是AMZ，AMZ。如何显示AAM ，MZZ？

After the orderBy happens, the rows are A M Z, A M Z. How do I get it to display A A M, M Z Z?

这是插件对于上述问题。
//编辑：上面的问题指向了解决方案，因为我更新了问题。

Here is the plunk for the above problem. //EDIT : The above plunk points to the solution because I updated the plunk.

推荐答案

最后通过过滤器链接解决此问题。我使用了角度过滤器模块/库，但是甚至可以不用角度过滤器来完成。

I was able to solve this problem finally through filter chaining. I used angular-filter module/library but this can be even done without angular-filter.

<div class="container" ng-controller="ExampleController as exampleVm">
<div class="row" ng-repeat="chunk in exampleVm.projects|  chunkBy: 'title' | groupBy : 3">
  <div class="col-sm-4" ng-repeat="project in chunk">
    {{project.title}}
  </div>
</div>

我将阵列弄平并制成看起来像这样。

I flattened the array and made it look like this.

var projects = [{"title:Z"},{"title":"A"},{"title":"M"},{"title:Z"},{"title":"A"},{"title":"M"}]

在过滤器链中，我先按标题对展平数组中的元素进行排序，然后将其划分为每个包含3个元素的子数组。希望这对您有所帮助。

In the filter chain, I order the elements in the flattened array first by title and then divide it into subarrays of 3 elements each. Hope this helps.

您可以在此处。

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