DD4T/NInject with Tridion 2013 SP1

Question

I'm trying to use the default DD4T solution on Google code as a base for my DD4T project and am running into an error "No PageFactory configured"

First things first - I've had to create my own Provider module for Tridion 2013 SP1. I simply copied the DD4T.Providers.SDLTridion2013 project, renamed it, and then built it against the new versions of the CD DLLs.

I reset the supplied global.asax to inherit the standard HttpApplication class, and created the Kernel in the NinjectWebCommon.cs file in the App_Start folder of my MVC project (.NET 4.5)

My Application_Start() method in the Global.asax contains:

protected void Application_Start () {

            DependencyInjectionConfig.Configure();

            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
        }

and my nInjectWebCommon.cs file contains

 public static class DependencyInjectionConfig
    {
        public static IKernel Configure()
        {
            int publicationId = 0;
            if (!int.TryParse(ConfigurationManager.AppSettings["DD4T.PublicationId"], 
                                                                  out publicationId))
            {
                throw new ConfigurationErrorsException("Missing or invalid" 
                                    + " DD4T.PublicationId, please ensure" 
                                    + " this exists in the appSettings element"
                                    + " in your web.config and contains an integer value");
            }

            IKernel kernel = new StandardKernel(new DD4TNinjectModule(publicationId));
            BindServices(kernel);
            return kernel;
        }

        /// <summary>
        /// Bind your own services here
        /// </summary>
        private static void BindServices(IKernel kernel)                
        {

            // TODO: Inject services for your controllers
        }
    }

I've set the correct Provider, DD4T PubIDs etc, placed the CD DLLs, config and lib in my /bin folder.

I've set breakpoints in the DD4TNInjectModule.cs which shows the dependency code is executing, but the code always falls over in DD4T.Mvc.Controllers.TridionControllerBase.GetModelForPage(string PageID) where PageFactory is always null...

Am I missing something obvious here?

Answer 1

Martin,

Sounds to me like your resolver isnt wired in to ASP.NET MVC - Ninject knows about your bindings but isn't being used to resolve anything yet.

Make sure you you register your resolver with ASP.NET MVC:

DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));

ASP.NET MVC will then use Ninject to resolve dependencies in your controller (and base controllers such as IPageFactory.

Answer 2

Siva is right, from what I've seen the tridion and provider assemblies have problems with the other dlls that they are referencing. This leads to the issue "it worked yesterday, but doesn't work now".

Regarding your particular problem, please have a look at my post (part B). I made it work finally, but it requires a lot of manual setup. Here is a link to a working DD4T project, to be used with a fresh MVC 5 application.

Hope that helps.

Answer 3

I feel like Tridion DLL and Provider DLL versions are not in sink.

There is some mismatch with version, which cause this issue.

Update:

Try moving DependencyInjectionConfig.Configure(); to end of Application_Start()

protected void Application_Start() 
{
        AreaRegistration.RegisterAllAreas();

        WebApiConfig.Register(GlobalConfiguration.Configuration);
        FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
        RouteConfig.RegisterRoutes(RouteTable.Routes);

        DependencyInjectionConfig.Configure();
}