使用Angular UI-Router保留状态

I have an app with a ng-view that sends emails to contact selected from a contact list. When the users select "Recipient" it shows another view/page where he can search, filter, etc. "Send email" and "Contact list" are different html partials that are loaded in the ng-view.

我有一个带有ng-view的应用程序，可以将电子邮件发送给从联系人列表中选择的联系人。当用户选择“收件人”时，它显示另一个他可以搜索，过滤等的视图/页面。“发送电子邮件”和“联系人列表”是在ng-view中加载的不同html部分。

I need to keep the send form state so when the users select someone from the Contact List it returns to the same point (and same state). I read about different solutions ($rootScope, hidden divs using ng-show, ...) but I want to know if UI-router will help me with it's State Manager. If not, are there other ready-to-use solutions?

我需要保持发送表单状态，以便当用户从联系人列表中选择某人时，它返回到同一点（和相同的状态）。我读到了不同的解决方案（$ rootScope，使用ng-show隐藏的div，...）但我想知道UI路由器是否会帮助我使用它的状态管理器。如果没有，还有其他现成的解决方案吗？

Thanks!

谢谢！

3 个解决方案

#1

The solution i have gone with is using services as my data/model storage. they persist across controller changes.

我使用的解决方案是使用服务作为我的数据/模型存储。他们坚持控制器的变化。

example

例

the user service ( our model that persists across controller changes )

用户服务（我们的模型在控制器更改后持续存在）

app.factory('userModel', [function () {
    return {
        model: {
            name: '',
            email: ''
        }
    };
}]);

using it in a controller

在控制器中使用它

function userCtrl($scope, userModel) {
    $scope.user = userModel;
}

the other advantage of this is that you can reuse your model in other controllers just as easly.

另一个优点是您可以轻松地在其他控制器中重用您的模型。

#2

I'm not sure if this is recommended or not, but I created a StateService to save/load properties from my controllers' scopes. It looks like this:

我不确定是否推荐这个，但是我创建了一个StateService来保存/加载控制器范围内的属性。它看起来像这样：

(function(){
    'use strict';

    angular.module('app').service('StateService', function(){

        var _states = {};

        var _save = function(name, scope, fields){
            if(!_states[name])
                _states[name] = {};
            for(var i=0; i<fields.length; i++){
                _states[name][fields[i]] = scope[fields[i]];
            }
        }
        var _load = function(name, scope, fields){
            if(!_states[name])
                return scope;
            for(var i=0; i<fields.length; i++){
                if(typeof _states[name][fields[i]] !== 'undefined')
                    scope[fields[i]] = _states[name][fields[i]];
            }
            return scope;
        }

        // ===== Return exposed functions ===== //
        return({
            save: _save,
            load: _load
        });

    });
})();

To use it, I put some code at the end of my controller like this:

为了使用它，我在控制器的末尾添加了一些代码，如下所示：

angular.module('app').controller('ExampleCtrl', ['$scope', 'StateService', function ($scope, StateService) {
    $scope.keyword = '';
    $scope.people = [];

    ...

    var saveStateFields = ['keyword','people'];
    $scope = StateService.load('ExampleCtrl', $scope, saveStateFields);
    $scope.$on('$destroy', function() {
        StateService.save('ExampleCtrl', $scope, saveStateFields);
    });
}]);

#3

I have found Angular-Multi-View to be a godsend for this scenario. It lets you preserve state in one view while other views are handling the route. It also lets multiple views handle the same route.

我发现Angular-Multi-View对于这种情况来说是天赐之物。它允许您在一个视图中保留状态，而其他视图正在处理路径。它还允许多个视图处理相同的路由。

You can do this with UI-Router but you'll need to nest the views which IMHO can get ugly.

您可以使用UI-Router执行此操作，但您需要嵌套IMHO可能会变得丑陋的视图。

#1