您的 JSON 结构不佳,您使用属性名称来承载数据。
你真正想要的是这样的:
$scope.continents = [
{
name: 'Asia',
countries: [
{
name: 'India',
cities: [
'Bangalore',
'Mumbai',
'New Delhi'
]
},
{
name: 'China',
cities: [
'Beijing',
'Shanghai'
]
},
]
},
{
name: 'Europe',
countries: [
{
name: 'France',
cities: [
'Peris'
]
},
{
name: 'Germany',
cities: [
'Berlin'
]
},
]
}
];
也就是说......听起来你想要做的是创建某种递归树指令。这有点棘手。您需要稍微标准化您的结构,以便递归地检查它。然后你必须创建两个指令。一个用于列表,一个用于项目:
这是我的意思的一个例子......
function Item(name, items) {
this.name = name;
this.items = items || [];
}
app.controller('MainCtrl', function($scope) {
$scope.items = [
new Item('test'),
new Item('foo', [
new Item('foo-1'),
new Item('foo-2', [
new Item('foo-2-1'),
new Item('foo-2-2')
])
]),
new Item('whatever')
];
});
app.directive('tree', function() {
return {
template: '<ul><tree-node ng-repeat="item in items"></tree-node></ul>',
restrict: 'E',
replace: true,
scope: {
items: '=items'
}
};
});
app.directive('treeNode', function($compile) {
return {
restrict: 'E',
template: '<li>{{item.name}}</li>',
link: function(scope, elm, attrs) {
//MAGIC HERE!!!: this will do the work of inserting the next set of nodes.
if (scope.item.items.length > 0) {
var children = $compile('<tree items="item.items"></tree>')(scope);
elm.append(children);
}
}
};
});