打击AngularJS执行控制器两次 [英] Combating AngularJS executing controller twice

问题描述

我明白AngularJS通过一些$ C $运行c两次，有时甚至更多，比如$手表活动，不断检查模型状态等。

I understand AngularJS runs through some code twice, sometimes even more, like $watch events, constantly checking model states etc.

不过我的code：

function MyController($scope, User, local) {

var $scope.User = local.get(); // Get locally save user data

User.get({ id: $scope.User._id.$oid }, function(user) {
  $scope.User = new User(user);
  local.save($scope.User);
});

//...

执行两次，插入2条记录到我的数据库。我清楚地还在学习，因为我一直在敲我的头这时代！

Is executed twice, inserting 2 records into my DB. I'm clearly still learning as I've been banging my head against this for ages!

推荐答案

像这样指定的导航 myController的的应用路由器：

The app router specified navigation to MyController like so:

$routeProvider.when('/',
                   { templateUrl: 'pages/home.html',
                     controller: MyController });

不过，我也有过这样的 home.html的：

<div data-ng-controller="MyController">

这消化控制器的两倍。删除数据-NG-控制器从HTML属性解决了这个问题。另外，控制器：财产可能已经从路由指令删除

This digested the controller twice. Removing the data-ng-controller attribute from the HTML resolved the issue. Alternatively, the controller: property could have been removed from the routing directive.

使用标签式浏览的时候，也会出现此问题。例如， app.js 可能包含：

This problem also appears when using tabbed navigation. For example, app.js might contain:

  .state('tab.reports', {
    url: '/reports',
    views: {
      'tab-reports': {
        templateUrl: 'templates/tab-reports.html',
        controller: 'ReportsCtrl'
      }
    }
  })

相应的报告选项卡的HTML可能类似于：

The corresponding reports tab HTML might resemble:

<ion-view view-title="Reports">
  <ion-content ng-controller="ReportsCtrl">

这也将导致运行控制器的两倍。

This will also result in running the controller twice.

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