我有这个控制器：
JApp.controller('WebsiteController', function($scope, $resource) {
var UsersService = $resource('/auth/users', {});
$scope.adding = false;
$scope.users = [];
$scope.addUser = function() {
$scope.adding = true;
UsersService.query({}, function(data) {
$scope.users = data;
$scope.selectedUser = data[0];
});
}
$scope.cancelAddUser = function() {
$scope.adding = false;
}
});
我的HTML：
<section class="vbox" ng-controller="WebsiteController">
<section class="panel animated fadeInDown">
<header class="panel-heading">
<h3>{{selectedUser.last_name}} </h3> <!-- Just to test I print it here -->
</header>
<div class="panel-body m-b">
<div class="row text-sm wrapper">
@if (role_admin())
<a href="{{{URL::action('WebsiteController@getAddWebsite')}}}" class="btn btn-sm btn-info"> <i class="icon-plus"></i> New Website </a>
@endif
</div>
<div class="table-responsive">
<table class="table table-striped b-t text-sm">
<thead>
<tr>
<th>URL</th>
<th>Assigned to</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<!-- Outside this <tr> doesn't work -->
<tr ng-repeat="website in websites">
<td> {{website.url}}</td>
<td>
<span ng-repeat="assigned in website.users"> <span class="label label-info"> {{assigned.first_name}} </span> </span>
<a ng-click="addUser()" ng-hide="adding" class="btn btn-success btn-xs"> Add new </a></span>
<select ng-hide="!adding"
name="myselect"
ng-model="selectedUser"
ng-options="u.first_name for u in users">
</select>
<a href="#" ng-hide="!adding" ng-click="cancelAddUser()" class="btn btn-warning btn-xs">Cancel</a>
<input type="text" ng-model="selectedUser.first_name"> <!-- It works here! -->
</td>
<td>
<a href="#" class="btn btn-xs btn-white"> <i class="icon-pencil"></i> Edit </a>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</section>
</section>
更新：请注意，它适用于<input>旁边的<select>，但不适用于<header>（仅绑定一次）
因此，当我点击添加用户时，AJAX调用将检索用户列表，并在<select>中成功显示，默认情况下，selectedUser将指向data[0]这是第一个用户。但现在双向绑定现在绑定到data[0]。如果我将我的选择更改为其他用户，则不会更新selectedUser。但是，如果我更新我的selectedUser，让我们说名称，下拉列表中的名称也会更改。
我尝试过不使用
行$scope.selectedUser = data[0];
但仍然无法正常工作，虽然我指定ng-model="selectedUser"但它完全没有约束。
JSON返回：
[
{
"id": 1,
"role_id": 1,
"created_at": "2013-09-19 05:54:36",
"updated_at": "2013-09-19 05:54:36",
"email": "admin@admin.com",
"username": "admin",
"first_name": "Admin",
"last_name": "Istrator"
},
{
"id": 2,
"role_id": 2,
"created_at": "2013-09-19 05:54:36",
"updated_at": "2013-09-19 05:54:36",
"email": "johndoe@gmail.com",
"username": "john",
"first_name": "John",
"last_name": "Doe"
}
]
任何人都可以帮我这个吗？如果我不需要，我会尽量不要去$ digest或$ apply。
更新2 问题的根源是，如果我尝试在上面的HTML中打印出以下ng-repeat之外的selectedUser：
<tr ng-repeat="website in websites"> ...... </tr>
答案 0 :(得分：5)
试试这个
HTML：
<div ng-app="myApp">
<section class="vbox" ng-controller="WebsiteController">
<section class="panel animated fadeInDown">
<header class="panel-heading">
<h3>{{mySelectedUser.last_name}} </small> <!-- Just to test I print it here -->
</header>
<div class="panel-body m-b">
<div class="table-responsive">
<table class="table table-striped b-t text-sm">
<thead>
<tr>
<th>URL</th>
<th>Assigned to</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="website in websites">
<td>
<span ng-repeat="assigned in website.users"> <span class="label label-info"> {{assigned.first_name}} </span> </span>
<a ng-click="addUser()" ng-hide="adding" class="btn btn-success btn-xs"> Add new </a></span>
<select ng-hide="!adding"
name="myselect"
ng-model="selectedUser"
ng-change="abc(selectedUser)"
ng-options="u.first_name for u in users">
</select>
<a href="#" ng-hide="!adding" ng-click="cancelAddUser()" class="btn btn-warning btn-xs">Cancel</a>
<input type="text" ng-model="selectedUser.first_name"> <!-- It works here! -->
</td>
<td>
<a href="#" class="btn btn-xs btn-white"> <i class="icon-pencil"></i> Edit </a>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</section>
</section>
</div>
控制器：
var JApp = angular.module('myApp', []);
JApp.controller('WebsiteController', function($scope) {
//var UsersService = $resource('/auth/users', {});
$scope.adding = false;
$scope.users = [];
$scope.websites = [
{
"id": 1,
"url": "www.google.com",
"cms": "Wordpress"
}
];
$scope.addUser = function() {
$scope.adding = true;
var data = [
{
"id": 1,
"role_id": 1,
"created_at": "2013-09-19 05:54:36",
"updated_at": "2013-09-19 05:54:36",
"email": "admin@admin.com",
"username": "admin",
"first_name": "Admin",
"last_name": "Istrator"
},
{
"id": 2,
"role_id": 2,
"created_at": "2013-09-19 05:54:36",
"updated_at": "2013-09-19 05:54:36",
"email": "johndoe@gmail.com",
"username": "john",
"first_name": "John",
"last_name": "Doe"
}
];
// UsersService.query({}, function(data) {
$scope.users = data; // suppose data is coming from UsersService.query
$scope.selectedUser = data[1];
$scope.mySelectedUser = $scope.selectedUser ;
// });
}
$scope.abc = function(a) {
$scope.mySelectedUser = a;
}
$scope.cancelAddUser = function() {
$scope.adding = false;
}
});
请参阅DEMO
答案 1 :(得分：0)
select下拉选项的值是u.first_name，所以要么这样做：
$scope.selectedUser = data[0].first_name;
或者将其更改为使用ID或类似的内容。
ng-options="u.id as u.first_name for u in users"
$scope.selectedUser = data[0].id;