我有一个ui-router StateProvider,需要根据外部数据在控制器和视图之间进行选择,因此我使用了TemplateProviderControllerProvider

如果我只有TemplateProvider,那么一切正常,但是当我添加ControllerProvider时,会出现此错误:

Error: [ng:areq] Argument 'fn' is not a function, got Object
http://errors.angularjs.org/1.3.1/ng/areq?p0=fn&p1=not%20aNaNunction%2C%20got%Object
    at REGEX_STRING_REGEXP (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:80:12)
    at assertArg (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:1577:11)
    at assertArgFn (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:1587:3)
    at annotate (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:3417:5)
    at invoke (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:4096:21)
    at Object.instantiate (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:4129:23)
    at http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:8320:28
    at compile (http://localhost:48510/Scripts/Vendor/AngularUIRouter/angular-ui-router.js:3897:28)
    at invokeLinkFn (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:8081:9)
    at nodeLinkFn (http://localhost:48510/Scripts/Vendor/Angular/1-angular.js:7593:11)


可能看起来像某些undefined serviceName(它说有对象,但看起来像是undefined,但我不太擅长调试AngularJs

这是我的代码:

.state('abstractParent.childState', {
    url: '/childState',
    controllerProvider: ['myService', function (myService) {
        return myService
          .isSpecificMember()
          .then(function (result) {  //this returns a promise of a bool.
            if (result.data) {
                return 'SpecificController';
            } else {
                return 'GeneralController';
            }
        })
    }],
    templateProvider: ['myService', '$templateFactory',
     function (myService, $templateFactory) {
        return myService.isSpecificMember().then(function(result) {
            if(result.data)
            {
                return $templateFactory.fromUrl('SpecificView');
            } else {
                return $templateFactory.fromUrl('GenericView');
            }
        })
    }],
    resolve: {
        thing: ['thingService', function (thingService) {
            //this is only used in one of the controllers.
            return thingService.getThing();
        }]
    }})


编辑

基于RadimKöhlers答案的更改

    .state('abstractParent.childState', {
        url: '/childState',
        resolve: {
            controllerName: ['myService', function (myService) {
                return myService.isSpecificMember().then(function (result) {  //this returns a promise of a bool.
                    if (result.data) {
                        return 'SpecificController';
                    } else {
                        return 'GeneralController';
                    }
                })
            }],
            thing: ['thingService', function (thingService) { //this is only used in one of the controllers.
                return thingService.getThing();
            }]
        },
        controllerProvider: ['controllerName', function (controllerName) {
            return controllerName;
        }],
        templateProvider: ['myService', '$templateFactory', function (myService, $templateFactory) {
            return myService.isSpecificMember().then(function(result) {
                if(result.data)
                {
                    return $templateFactory.fromUrl('SpecificView');
                } else {
                    return $templateFactory.fromUrl('GenericView');
                }
            })
        }]
        })


新错误:

    Error: [$injector:unpr] Unknown provider: controllerNameProvider <- controllerName
    http://errors.angularjs.org/1.3.1/$injector/unpr?p0=controllerNameProvider%20%3C-%20controllerName
        at REGEX_STRING_REGEXP (1-angular.js:80)
        at 1-angular.js:3930
        at Object.getService [as get] (1-angular.js:4077)
        at 1-angular.js:3935
        at getService (1-angular.js:4077)
        at Object.invoke (1-angular.js:4109)
        at angular-ui-router.js:3465
        at processQueue (1-angular.js:12901)
        at 1-angular.js:12917
        at Scope.$get.Scope.$eval (1-angular.js:14110)




至少需要0.2.14版本angular-ui-router.js

最佳答案

关键是,controllerProvider仅必须返回表示controllerstring(其名称)的对象

http://angular-ui.github.io/ui-router/site/#/api/ui.router.state。$ stateProvider


  stateConfig.controllerProvider(可选)功能
  
  返回实际控制器或字符串的可注入提供程序函数。


因此,我们无法兑现承诺...

但是有一个解决方案:

a working example

我们可以使用内置功能解析-进行异步处理,并通过使用controllerProvider使其成为英雄-通过使用它:

  resolve: {
    controllerName: ['$stateParams', '$timeout','$q',
        function ($stateParams, $timeout, $q)
        {
          var deferred = $q.defer();
           $timeout(function(){

            deferred.resolve('MyLazyRevealedCtrl');

          },250);
          return deferred.promise;
        }],

  },
  controllerProvider:['controllerName', function (controllerName)
  {
      return controllerName;
  }],


我们看到的是仅带有计时器的简化示例(扮演异步.then()的角色)。等待一会儿,然后返回解析的控制器名称。

然后controllerProvider(一旦解决所有问题)就将结果取回,并以字符串形式返回。

检查here

07-27 20:14