角度资源没有调用我的错误回调函数

时间:2013-09-20 00:30:47

标签: ruby-on-rails angularjs angular-resource

我已经在这几个小时了,我无法弄清楚为什么当我的rails后端引发了正确的错误时,angular不会触发我的错误回调。我正在使用角度1.2.0rc1。

根据文件:

non-GET "class" actions: Resource.action([parameters], postData, [success], [error])

我在保存产品操作期间在角度控制器中使用它:

$scope.saveProduct = function(product){

  if (product.id) {
    Product.update({id: product.id},{product: product}, function(data){
      console.log('handle success')


    }, function(){
      console.log('handle error')  //THIS IS NEVER OUTPUT!

    });
  } 

}

以下是资源定义:

angular.module('sellbriteApp.resources').factory('Product', function ($resource) {
  return $resource('/api/products/:id', { id: "@id" },
    {
      'create':  { method: 'POST' },
      'index':   { method: 'GET', isArray: true },
      'show':    { method: 'GET', isArray: false },
      'update':  { method: 'PUT' },
      'destroy': { method: 'DELETE' }
    }
  );
});

这是我的rails控制器:

def update
  respond_to do |format|
    if @product.update(product_params)
      format.html { redirect_to [:edit, @product], notice: 'Product was successfully updated.' }
      format.json { render 'products/show.json.jbuilder', status: :accepted }
    else
      format.html { render action: 'edit' }
      format.json { render json: @product.errors, status: :unprocessable_entity }
    end
  end
end

Rails在尝试使用重复的sku保存产品时返回422状态,并且我想在前端显示错误消息。

我希望angular应该执行更新调用中提供的错误处理功能,但我无法做到这一点。相反,在我的控制台中,我看到:

TypeError: Cannot read property 'data' of undefined无用的堆栈跟踪:

TypeError: Cannot read property 'data' of undefined
at $http.then.value.$resolved (http://localhost:9000/bower_components/angular-resource/angular-resource.js:477:32)
at wrappedCallback (http://localhost:9000/bower_components/angular/angular.js:9042:59)
at wrappedCallback (http://localhost:9000/bower_components/angular/angular.js:9042:59)
at http://localhost:9000/bower_components/angular/angular.js:9128:26
at Object.Scope.$eval (http://localhost:9000/bower_components/angular/angular.js:9953:28)
at Object.Scope.$digest (http://localhost:9000/bower_components/angular/angular.js:9809:23)
at Object.$delegate.__proto__.$digest (<anonymous>:844:31)
at Object.Scope.$apply (http://localhost:9000/bower_components/angular/angular.js:10039:24)
at Object.$delegate.__proto__.$apply (<anonymous>:855:30)
at done (http://localhost:9000/bower_components/angular/angular.js:6542:45)

我错过了什么?

更新

显然这个http拦截器是相关的。如果我将此代码注释掉,则会调用错误函数。我已经从其他地方复制了这个片段并对其进行了修改,以便在用户未登录时点击rails api将用户重定向到sign_up页面。它必须是干扰,但我不知道应该如何解决它

App.config(['$httpProvider', function ($httpProvider) {
  $httpProvider.responseInterceptors.push('securityInterceptor');
}]);

App.factory('securityInterceptor', ['$injector', '$location', '$cookieStore', function ($injector,$location,$cookieStore) {

  return function(promise) {
    var $http = $injector.get('$http');
    return promise.then(null, function(response){
      if (response.status === 401) {
        $cookieStore.remove('_angular_devise_merchant');
        toastr.warning('You are logged out');
        $location.path('/sign_in');
      } 
    });
  };


}]);

1 个答案:

答案 0 :(得分:7)

您也需要拒绝拦截器中的承诺,否则会将其视为“处理”异常。

所以:

App.factory('securityInterceptor', ['$injector', '$location', '$cookieStore', '$q', function ($injector,$location,$cookieStore, $q) {

  return function(promise) {
    var $http = $injector.get('$http');
    return promise.then(null, function(response){
      if (response.status === 401) {
        $cookieStore.remove('_angular_devise_merchant');
        toastr.warning('You are logged out');
        $location.path('/sign_in');
      }
      return $q.reject(response);
    });
  };


}]);