[英]Access another controller in Angular.js
到目前为止,我的基本代码:
function UsersCtrl($scope) {
$scope.users = [
{
"id": 1,
"usersName": "Matt Dance",
"favorites": {
"id":1,
"lodge_id":1
}
},
{
"id":2,
"usersName": "Jennifer Dance",
"favorites": {
"id":1,
"lodge_id":2
}
}
];
};
function LodgesCtrl($scope) {
$scope.lodges = [
{
id: 1,
lodgesName: 'Matt\'s Awesome Lodge',
lodgeOwnersName: 'Matthew D',
lodgeStreetAddress: '5555 J lane',
lodgeCity: 'Salt Lake city',
lodgeZip: '11111',
lodgeState: 'Utah'
},
{
id: 2,
lodgesName: 'Some Historic Lodge',
lodgeOwnersName: 'Santa Claus',
lodgeStreetAddress: '1 Clearwater Road',
lodgeCity: 'Grand Marais',
lodgeZip: '55555',
lodgeState: 'Minnesota'
},
{
id: 3,
lodgesName: 'Yellowstone Lodge',
lodgeOwnersName: 'The Feds',
lodgeStreetAddress: '1 Yellowstone Way',
lodgeCity: 'Yellowstone',
lodgeZip: '55555',
lodgeState: 'Wyoming'
},
{
id: 4,
lodgesName: 'Cool Lodge',
lodgeOwnersName: 'Awesome Guy',
lodgeStreetAddress: '1 awesome Road',
lodgeCity: 'Eagle Mountain',
lodgeZip: '55555',
lodgeState: 'Utah'
},
{
id: 5,
lodgesName: 'The last lodge',
lodgeOwnersName: 'Adam V',
lodgeStreetAddress: '444 Last Road',
lodgeCity: 'San Francisco',
lodgeZip: '55555',
lodgeState: 'California'
}
];
};
我希望用户能够看到他们喜欢的旅馆的旅馆名称。 例如,一个用户收藏了ID为1的小屋。然后,我如何循环浏览每个用户,并显示喜欢的小屋的标题? 基本上,我需要为每个用户的收藏夹使用lodge_id
来显示小屋名称。
到目前为止,我的html:
<div ng-controller="UsersCtrl">
<ul class="unstyled">
<li ng-repeat="user in users">
{{user.usersName}}<br>
</li>
</ul>
</div>
我是Angular(和JS框架)的新手,并且不确定如何做到这一点。 我研究了其他框架,例如Ember,但是无法以“简单”的方式解决它。
最简单的解决方案是构造一个映射对象并将其绑定到$ rootScope。 例如:
$rootScope.mapping = {
userId: [lodge1, lodge2...]
}
我对您的代码进行了很少的更改,并且现在可以正常工作,但是我认为您需要以更好的方式来结构化数据,以便以更简单的方式进行迭代。
您还可以在此处查看正在工作的插销( http://plnkr.co/edit/DtBxzYulJGTQC0KJsh8M?p=preview )。
<!doctype html>
<html lang="en" ng-app="myApp">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
<script>
var myApp = angular.module('myApp', []);
myApp.controller('UsersCtrl', ['$scope', function ($scope) {
$scope.users = [
{
"id": 1,
"usersName": "Matt Dance",
"favorites": {
"id":1,
"lodge_id":1
}
},
{
"id":2,
"usersName": "Jennifer Dance",
"favorites": {
"id":1,
"lodge_id":2
}
}
];
$scope.lodges = [
{
id: 1,
lodgesName: 'Matt\'s Awesome Lodge',
lodgeOwnersName: 'Matthew D',
lodgeStreetAddress: '5555 J lane',
lodgeCity: 'Salt Lake city',
lodgeZip: '11111',
lodgeState: 'Utah'
},
{
id: 2,
lodgesName: 'Some Historic Lodge',
lodgeOwnersName: 'Santa Claus',
lodgeStreetAddress: '1 Clearwater Road',
lodgeCity: 'Grand Marais',
lodgeZip: '55555',
lodgeState: 'Minnesota'
},
{
id: 3,
lodgesName: 'Yellowstone Lodge',
lodgeOwnersName: 'The Feds',
lodgeStreetAddress: '1 Yellowstone Way',
lodgeCity: 'Yellowstone',
lodgeZip: '55555',
lodgeState: 'Wyoming'
},
{
id: 4,
lodgesName: 'Cool Lodge',
lodgeOwnersName: 'Awesome Guy',
lodgeStreetAddress: '1 awesome Road',
lodgeCity: 'Eagle Mountain',
lodgeZip: '55555',
lodgeState: 'Utah'
},
{
id: 5,
lodgesName: 'The last lodge',
lodgeOwnersName: 'Adam V',
lodgeStreetAddress: '444 Last Road',
lodgeCity: 'San Francisco',
lodgeZip: '55555',
lodgeState: 'California'
}
];
}]);
</script>
</head>
<body>
<div ng-controller="UsersCtrl">
<ul>
<li ng-repeat="user in users">
{{user.usersName}}<br>
{{user.favorites.lodge_id}}<br>
<p ng-repeat="lodge in lodges | filter: { id: user.favorites.lodge_id }">
{{lodge.lodgesName}}
</p>
</li>
</ul>
</div>
</body>
</html>
您应该使用服务。 由于服务是单例,因此它们是在控制器之间共享内容的最简单方法。 实际上,这是有角度的方式:
请勿将控制器用于:
跨控制器共享无状态或有状态代码-改用角度服务。
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