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在我的登录屏幕上,当我点击“登录”按钮时,它会调用登录功能。它实际上是ng-submit =“login()”。代码在我的LoginCtrl控制器中。转换为承诺解决http的异步性质
function onSuccessfulLogin() {
$scope.failureMessage = "";
$rootScope.mainbody.position = 'absolute';
if (nextState !== null && typeof nextState.name === 'string' && nextState.name !== '') {
console.log("calling nextState ......");
$state.go(nextState.name, nextState.params);
} else {
$state.go('main', {});
}
}
$scope.login = function() {
disableLoginButton();
$rootScope.login = {
goodmsg : true,
errormsg : false
}
$scope.failureMessage = "Signing in Analytics Dashboard ....";
User.authenticate($scope.username, $scope.password, onSuccessfulLogin, onFailedLogin, $scope.persist);
};
我有一个名为User的服务,我点击上面的登录按钮后调用“身份验证”功能。它目前工作正常,直到我在“this.authenticate”函数中添加了更多的HTTP调用。我希望发生的事情是将其转换为promise,以便在收到来自所有HTTP请求的所有数据时,它会在正确的时间调用onSuccessfulLogin()。但是,我不确定我将如何转换“this.authenticate”以返回承诺。顺便说一下,TokenService是我制作的一家Restangular工厂。
此外,我想将它转换为承诺的原因是因为我想确保在ui-router实例化将要显示的控制器之前所有数据都已准备就绪。
this.authenticate = function(username, password, successCallback, errorCallback, persistData) {
this.removeAuthentication();
TokenService.setResponseInterceptor(function (data, operation, what, url, response) {
if (operation == 'post') {
$rootScope.locationResourceId = response.headers('Location').split('/')[response.headers('Location').split('/').length-1]
}
return response.data;
});
TokenService.one('authentokens').customPOST({'email' : username , 'password' : password}, '', {app : 'baam'})
.then(function(data) {
var userresourceId = data.href.split('/')[data.href.split('/').length-1]
$rootScope.userData = {
isAuthenticated : true,
username : username,
bearerToken : data.token,
expirationDate : new Date(data['expires']),
resourceId : userresourceId,
tokenResourceId : $rootScope.locationResourceId
};
TokenService.one('users').customGET($rootScope.userData.resourceId, { 'token' : $rootScope.userData.bearerToken })
.then(function(jsondata) {
$rootScope.userData.locale = retrieveLocale();
// Set locale via Factory
var currentLocale = CurrentLocaleFactory;
currentLocale.locale = $rootScope.userData.locale;
$rootScope.userData.firstname = (jsondata.firstname == null) || (jsondata.firstname == null) ? '' : jsondata.firstname;
$rootScope.userData.lastname = (jsondata.lastname == null) || (jsondata.lastname == null) ? '' : jsondata.lastname;
var avatar = username.split('@')[0].toLowerCase();
$http.get('assets/json/avatar.json')
.then(function(res) {
$rootScope.userData.gravatarLink = res.data.gravatarLink;
if (persistData === true) {
saveData();
}
if (typeof successCallback === 'function') {
successCallback();
}
}, function() {
$rootScope.userData.gravatarLink = "assets/img/noface.png";
if (persistData === true) {
saveData();
}
if (typeof successCallback === 'function') {
successCallback();
}
})
})
}, function(data) {
if (typeof errorCallback === 'function') {
if (data.error_description) {
errorCallback(data.error_description);
} else {
errorCallback(data.data.message);
}
}
})
};
好吧,我现在就试试。 – devwannabe 2015-01-31 19:27:21
我想我明白它现在的工作原理。我也在成功中加入了回报,并且失去了每个人的主要回报。谢谢 – devwannabe 2015-01-31 20:26:27