我是AngularJS的新手,我有以下问题:
查看:
<div>
<form role="form" name="loginForm" class="form-horizontal login-form">
<div class="form-group">
<p class="login-form-msg">Welcome : {{user.username}}</p>
<label for="inputUserName" class="col-sm-2 control-label login-form-label">Base</label>
<div class="col-sm-10">
<input type="text" placeholder="Enter base" class="form-control" required ng-model="user.code">
</div>
</div>
<div class="form-group">
<label for="inputUserName" class="col-sm-2 control-label login-form-label">Username</label>
<div class="col-sm-10">
<input type="text" placeholder="Enter name" class="form-control" required ng-model="user.username">
</div>
</div>
<div class="form-group">
<label for="inputPassword" class="col-sm-2 control-label login-form-label">Password</label>
<div class="col-sm-10">
<input type="password" placeholder="Password" id="inputPassword" class="form-control" required ng-model="user.password">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10 login-form-button">
<button class="btn btn-default" type="submit" ng-disabled="loginForm.$invalid" ng-click="login(user)">Sign in</button>
</div>
<p class="login-form-msg">{{msgtxt}}</p>
</div>
</form>
</div>
主要的js:
var myApp = angular.module('myApp', ['ngRoute']);
myApp.config(['$routeProvider', function ($routeProvider) {
$routeProvider.when('/login', {
templateUrl: 'partials/login.html',
controller:'loginCtrl'
});
$routeProvider.when('/welcome', {
templateUrl: 'partials/welcome.html',
controller:'loginCtrl'
});
$routeProvider.otherwise({ redirectTo: '/login' });
}]);
我有以下工厂:
myApp.factory('getURLService', function ($http, config) {
return {
getURL: function (user,scope) {
$http.get(config.backend + "/Device/GetURLbyCode", {
params: { code: user.code }
})
.success(function (data) {
var url = '';
if (data.status == 'succ') {
url = data.Result;
}
else {
scope.msgtxt = data.msg;
}
return url;
});
}
}
});
我需要在其他工厂使用此工厂的返回值。
例如在我的登录工厂中:
myApp.factory('loginService', function ($http, $location, config) {
return {
login: function (user,url,scope) {
$http.get(url + "/Device/Register", {
params: { userName: user.username, password: user.password }
})
.success(function (data) {
if (data.status == 'succ') {
$location.path('/welcome');
}
else {
scope.msgtxt = data.msg;
}
});
}
}
});
这是我的控制者:
myApp.controller('loginCtrl', function ($scope, getURLService, loginService) {
$scope.msgtxt = '';
$scope.login = function (user) {
loginService.login(user,url,$scope); //call login service
}
});
我需要在我的控制器中做什么来实际返回网址,然后将其发送到登录服务或任何其他服务(甚至是控制器)?
提前感谢您的时间和建议。
答案 0 :(得分:2)
为了从函数返回数据,你应该返回$http.get
已经返回它的promise对象。
我想指出的另一件事是,将$ scope传递给服务不遵守singleton的规则,因为你正在创建一个依赖于控制器范围的服务。服务应该只接受参数并通过处理它返回结果,没有别的。
<强>代码强>
return {
getURL: function (user,scope) {
return $http.get(config.backend + "/Device/GetURLbyCode", {
params: { code: user.code }
})
.then(function (res) {
var data = res.data;
var url = '';
if (data.status == 'succ') {
url = data.Result;
}
else {
scope.msgtxt = data.msg;
}
return url;
});
}
}
<强> login服务强>
myApp.factory('loginService', function ($http, $location, config) {
return {
login: function (user,url) {
return $http.get(url + "/Device/Register", {
params: { userName: user.username, password: user.password }
})
.then(function (response) {
var data = response.data;
if (data.status == 'succ') {
$location.path('/welcome');
return;
}
return data.msg;
});
}
}
});
<强>控制器强>
getURLService.getURL(user).then(function(url){
//assuming you already having value of user available here
loginService.login(user,url).then(function(message){ //call login service
if(message)
$scope.msgtxt = message;
});
});