Rails 4.1 ActionController ::使用AngularJS的respond_with的UnknownFormat错误

Question

尝试在rails控制器中使用respond_to和respond_with时,继续获取ActionController:UnknownFormat错误.控制器中以下行出错.

respond_with @surveys 

在/ app/assets/controllers/surveys_controller中

respond_to :json

def index
  @surveys = Survey.all
  respond_with @surveys
end

在/config/routes.rb中

WebInsight::Application.routes.draw do

   scope :api do
      resources :surveys, defaults: {format: 'json'}
   end

   resources :surveys
end

在/app/assets/views/surveys/index.html.erb中

<h1>Your Surveys</h1>

<form>
  <input type="text" ng-model='newSurvey' placeholder="Enter a survey">
  <input type="submit" value="Add">
</form>

<div ng-controller="SurveysCtrl">
    <ul>
        <li ng-repeat="survey in surveys">
          {{ survey.theme_id }}, {{ survey.name }}, {{ survey.description }}
        </li>
    </ul>
</div>

在/app/assets/javascripts/angular/controllers/surveys_ctrl.js中

app.controller('SurveysCtrl', ['$scope', '$resource', function($scope, $resource) {
   var Surveys = $resource('/api/surveys');
   $scope.surveys = Surveys.query();
}]);

Answer 1

通过以下修改解决了这个问题：

在 /app/assets/controllers/surveys_controller 中，使用

respond_to :json, :html

而不是仅仅

respond_to :json