AngularJS 嵌套 ng-repeat onclick [英] AngularJS nested ng-repeat onclick
问题描述
我需要创建动态 ng-repeat,填充后我想在每个重复项上添加一个点击功能,然后点击我想在被点击的元素内添加另一个重复.这是为了创建一个小的电影管理器,所以在文件夹点击我想添加一个文件列表(
<div class="title" ng-click="clicked(id)">{{f.id}} - {{f.titolo}}</div>
这是我的代码,问题是添加重复点击,这是最好的方法?
最好使用指令来设计它并动态添加 DOM 元素,但您也可以仅通过递归"来实现ng-include
- 我会让其他人评论这是最佳实践还是反模式:)
基本上,这利用了 ng-repeat
为每个子级创建的子级作用域和 ng-init
为列表(文件夹,例如示例):
比方说,文件夹内容的基本结构是这样的:
内容:{{folder.name}}<li ng-repeat="f in folder.contents"><span ng-click="getFolderContents(f)">{{f.name}}</span><ul ng-if="f.contents.length">内容:{{f.name}}<li ng-repeat="childF in f.contents">... 等等
你可以看到递归的本质.因此,如果我们可以将内部文件夹抽象为 ng-include
,那么我们就可以重用它.
最终的解决方案如下所示:
<ul ng-include="'folderTemplate'"></ul><script type="text/ng-template" id="folderTemplate">内容:{{folder.name}}<li ng-repeat="f in folder.contents" ng-init="folder = f"><span ng-click="getFolderContents(f)">{{f.name}}</span><ul ng-include="'folderTemplate'" ng-if="f.contents.length"></ul>
注意 ng-init="folder = f"
.它为每个子作用域设置别名变量 folder
.顺便说一句,它也是其父级使用的变量,最终也是根:
$scope.folder = {name: "folder 1", contents: []};
getFolderContents
只是一个为点击的文件夹填充 folder.contents
的函数.
这是一个 plunker 玩
I need to create I dynamic ng-repeat, after populate it I want to add a click function on each repeat item and then on click I want to add another repeat inside the clicked element. This for create a little filme manager, so on folder click I want to add a list of file(
<li class="item_grid" ng-repeat="(id,f) in files | filter:query" id="{{f.id}}" file-directive-right>
<div class="title" ng-click="clicked(id)">{{f.id}} - {{f.titolo}}</div>
</li>
this is my code the problem is add a repeat onclick, which is the best way?
It's probably best to design this with a directive and add DOM elements dynamically, but you could also do this with just "recursive" ng-include
- I'll let others comment on whether this is a best practice or an anti-pattern :)
Basically, this leverages the child scope that ng-repeat
creates for each child and ng-init
to re-alias the name of the list (of folders, for example):
Let's say, the basic structure of folder contents is like so:
<ul>
contents of: {{folder.name}}
<li ng-repeat="f in folder.contents">
<span ng-click="getFolderContents(f)">{{f.name}}</span>
<ul ng-if="f.contents.length">
contents of: {{f.name}}
<li ng-repeat="childF in f.contents">
... etc
</li>
</ul>
</li>
</ul>
You can see the recursive nature. So, if we could abstract the inner folder into an ng-include
, then we could reuse it.
The final solution would look like so:
<div ng-controller="folderCtrl">
<ul ng-include="'folderTemplate'"></ul>
<script type="text/ng-template" id="folderTemplate">
contents of: {{folder.name}}
<li ng-repeat="f in folder.contents" ng-init="folder = f">
<span ng-click="getFolderContents(f)">{{f.name}}</span>
<ul ng-include="'folderTemplate'" ng-if="f.contents.length"></ul>
</li>
</script>
</div>
Notice the ng-init="folder = f"
. It sets the alias variable folder
for each child scope. It is also, not incidentally, the same variable used by its parent, and ultimately, the root:
$scope.folder = {name: "folder 1", contents: []};
getFolderContents
is just a function that populates folder.contents
for a clicked-on folder.
Here's a plunker to play with
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