干得好:
html
<div ng-app="app" ng-controller="test">
<ul>
<li nested-item ng-repeat="item in items">{{item.title}}</li>
</ul>
</div>
JavaScript
var items = [{
title: 'Something',
children: [
{ title: 'Hello World' },
{ title: 'Hello Overflow' },
{ title: 'John Doe', children: [
{ title: 'Amazing title' },
{ title: 'Google it' },
{ title: 'Im a child', children: [
{ title: 'Another ' },
{ title: 'He\'s my brother' },
{ title: 'She\'s my mother.', children: [
{title: 'You never know if im going to have children'}
]}
]}
]}
]
}];
var app = angular.module('app', []);
app.controller('test', function( $scope ) {
$scope.items = items;
});
app.directive('nestedItem', ['$compile', function($compile){
return {
restrict: 'A',
link: function(scope, element){
console.log(element);
if (scope.item.children){
var html = $compile('<ul><li nested-item ng-repeat="item in item.children">{{item.title}}</li></ul>')(scope);
element.append(html);
}
}
};
}]);
我叉了你的小提琴:
http://jsfiddle.net/c4Kp8/
实际上,我必须承认我喜欢 Master Morality 的方法,但您也可以使用自定义指令。要知道你是否走这条路的关键是你需要在项目级别拦截以手动检查当前项目是否有子项,如果有,则 $compile 自己的节点指令。
更新
然而,在上面的代码中有一件事情应该困扰我们。html 代码的重复(在指令中内联)是代码异味。如果您愿意,您可以通过引入一个通用template-code
指令来解决这个问题,该指令不做任何其他事情,但提供应用它的节点的代码作为其他指令的模板。
那么我们的解决方案将如下所示:
html
<div ng-app="app" ng-controller="test">
<ul template-code>
<li nested-item ng-repeat="item in items">{{item.title}}</li>
</ul>
</div>
JavaScript
var items = [{
title: 'Something',
children: [
{ title: 'Hello World' },
{ title: 'Hello Overflow' },
{ title: 'John Doe', children: [
{ title: 'Amazing title' },
{ title: 'Google it' },
{ title: 'Im a child', children: [
{ title: 'Another ' },
{ title: 'He\'s my brother' },
{ title: 'She\'s my mother.', children: [
{title: 'You never know if im going to have children'}
]}
]}
]}
]
}];
var app = angular.module('app', []);
app.controller('test', function( $scope ) {
$scope.items = items;
});
app.directive('templateCode', function(){
return {
restrict: 'A',
controller: function(){},
compile: function(element){
element.removeAttr('template-code');
//ATTENTION: We need to trim() here. Otherwise AngularJS raises an exception
//later when we want to use the templateCode in a $compile function.
//Be aware that we assume a modern browser
//that already ships with a trim function.
//It's easy to secure that with a polyfill.
var templateCode = element.parent().html().trim();
return function(scope, iElement, iAttrs, controller){
controller.templateCode = templateCode;
}
}
}
});
app.directive('nestedItem', ['$compile', function($compile){
return {
restrict: 'A',
require: '^templateCode',
link: function(scope, element, iAttr, controller){
if (scope.item.children){
scope.items = scope.item.children;
var html = $compile(controller.templateCode)(scope);
element.append(html);
}
}
};
}]);
Plunker:http: //jsfiddle.net/2rQWf/