controller

问题 While handling exception in Grails 2.2.4 with the scheme reported here: Exception handling in Grails controllers class ErrorController { def index() { def exception = request.exception.cause def message = ExceptionMapper.mapException(exception) def status = message.status response.status = status render(view: "/error", model: [status: status, exception: exception]) } } an exception is raised: groovy.lang.MissingPropertyException: No such property: ExceptionMapper for class: ErrorController

问题 I am getting this error when testing my code. I know it is a routing issue but I can't see anything wrong with my routes. Here is the routes that are causing the problems: Route::get('/messages', 'MessageController@create'); Route::get('/messages/show/{comment}', 'MessageController@show'); Here is the controller: class MessageController extends BaseController { protected $messageForm; public function __construct(MessageForm $messageForm, MessageRepository $messageRepository, MessageRecord

问题 Am almost embarassed that I can't get this to work. I have a model like this: public class Test { public string Test1 {get; set; } public string Test2 {get; set; } } I have a razor view which correctly displays both Test1 and Test2. Test1 is displayed just like this: @Html.LabelFor(model => mode.Test1) @Html.Test1 Test2 is displayed like this: @Html.LabelFor(model => model.Test2) @Html.EditorFor(model => model.Test2) i.e. I just want to display Test1, but want the user to be able to edit

问题 I am trying to pass an array and use it in my view from my controller but instead i am getting some errors... In my Controller: $data = array( 'a' => 'b', 'c' => 'd' ); $this->load->view('home/index', $data); In my View: print_r($data); throws errors and doesnt allow me to print it, since i am trying to then pass the array to another view for my app. Error : A PHP Error was encountered Severity: Notice Message: Undefined variable: data Filename: home/index.php Line Number: 1 回答1: Codeigniter

问题 I'm getting the following error when trying to map a URL path called "new" to a Controller method which does some logic, then displays the view "index.jsp": WARNING: No mapping found for HTTP request with URI [/springguestbook/index.jsp] in DispatcherServlet with name 'springguestbook' This is my Controller method: @RequestMapping(value = "/list", method = RequestMethod.GET) public String showGuestbookEntries(HttpServletRequest request, Model model) { HttpSession session = request.getSession

问题 I needed to access the current_user in my another model. I googled and found a few solutions and tried this. But just one difference: I didn't set the User.current_user in the controller. WHY? Like in the answer I followed I'm not adding data to my second model from views but by rendering data via a url (with open-uri, it's csv data I'm fetching). So in my second model I do: Person.create(username: User.current_user.username) It gives: NoMethodError: undefined method `username' for nil

问题 I'm having a fundamental problem in understanding the concept of MVC and displaying more than one form at a time. I've tried a variety of methods but I'm still stuck - and that's because I don't think I'm understanding CI and MVC correctly. I tried using 2 different views for the two different forms. Didn't work. I tried using one function per form in my controller. That didn't work either. I don't know what to do. Should I be doing this; Create a controller and have an index() function in it

问题 I want to to create different @Entity entities within the same Controller. @RequestMapping(value="create", method=RequestMethod.GET) public String GET(Model model) throws InstantiationException, IllegalAccessException { Class<?> clazz = ????; // a Random POJO is chosen, i want to use POJOs!! Object object = clazz.newInstance(); model.addAttribute("object", object); return "create"; } @RequestMapping(value="create", method=RequestMethod.POST) public @ResponseBody Object POST(@ModelAttribute

问题 I'm working on a JavaFX program that can display different grocery items as a BarChart. My code structure uses an initial loading class, GroceryGrapher.java , a controller, GroceryGrapherController.java , and an .fxml file, GroceryGrapher.fxml . I'm relatively new to JavaFX and I've tried different approaches to creating and displaying my BarChart . For the most part I've resolved issues and can load the chart with its data and components, but my issue is that the chart won't display / update

问题 I am trying to override the registration controller of FOSUserBundle. Here's my configuration : services: project.registration.controller: class: Project\UserBundle\Controller\RegistrationController arguments: [ @event_dispatcher,@fos_user.registration.form.factory,@fos_user.user_manager,@security.token_storage] And the controller so far: <?php namespace Project\UserBundle\Controller; use Symfony\Component\DependencyInjection\ContainerInterface; use Symfony\Component\HttpFoundation