Issues with my MVC repository pattern and StructureMap

Question

I have a repository pattern i created on top of the ado.net entity framework. When i tried to implement StructureMap to decouple my objects, i kept getting StackOverflowExce

Answer 1

I used a similar solution involving a generic implementor of IValidationDictionary uses a StringDictionary and then copied the errors from this back into the model state in the controller.

Interface for validationdictionary

   public interface IValidationDictionary
    {
        bool IsValid{get;}
        void AddError(string Key, string errorMessage);
        StringDictionary errors { get; }
    }

Implementation of validation dictionary with no reference to model state or anything else so structuremap can create it easily

public class ValidationDictionary : IValidationDictionary
{

    private StringDictionary _errors = new StringDictionary();

    #region IValidationDictionary Members

    public void AddError(string key, string errorMessage)
    {
        _errors.Add(key, errorMessage);
    }

    public bool IsValid
    {
        get { return (_errors.Count == 0); }
    }

    public StringDictionary errors
    {
        get { return _errors; }
    }

    #endregion
}

Code in the controller to copy the errors from the dictionary into the model state. This would probably be best as an extension function of Controller.

protected void copyValidationDictionaryToModelState()
{
    // this copies the errors into viewstate
    foreach (DictionaryEntry error in _service.validationdictionary.errors)
    {
        ModelState.AddModelError((string)error.Key, (string)error.Value);
    }
}

thus bootstrapping code is like this

public static void BootstrapStructureMap()
{
    // Initialize the static ObjectFactory container
    ObjectFactory.Initialize(x =>
    {
        x.For().Use();
        x.For().Use();
        x.For().Use(); 
    });
}

and code to create controllers is like this

public class IocControllerFactory : DefaultControllerFactory
{
    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
    {
        return (Controller)ObjectFactory.GetInstance(controllerType);
    }
}