CODEWITHSUNDEEP
c#umbracosimple-injector
Johan
Johan

Reputation: 35213

Preventing simple injector from conflicting with Umbraco controllers

Despite only regestering my own mvc controllers in my Umbraco solution, simple injector seems to affect Umbraco's backoffice controllers too. If I run the snippet below, the Umbraco backoffice controllers are getting exceptions, similar to the problems in this thread.

Do I need to add something like a custom controller activator too?

protected void Application_Start(object sender, EventArgs e) {

    var container = new Container();
    container.Options.DefaultScopedLifestyle = new WebRequestLifestyle();

    var registeredControllerTypes = 
    SimpleInjectorMvcExtensions.GetControllerTypesToRegister(
        container, Assembly.GetExecutingAssembly())
    .Where(type => type.IsSubClassOf(typeof(MyController)));

    foreach (var controllerType in registeredControllerTypes)
    {
        container.Register(controllerType, controllerType, Lifestyle.Transient);
    }

    container.Verify();

    DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(container));
}

Upvotes: 1

Views: 137

Answers (1)

Johan
Johan

Reputation: 35213

Solved with an updated version of @Steven's comment:

public class UmbracoConstructorBehavior : IConstructorResolutionBehavior
{
    public IConstructorResolutionBehavior DefaultBehavior { get; set; }
    public ConstructorInfo GetConstructor(Type implementationType)
    {
        return implementationType.Namespace != null 
          && implementationType.Namespace.Contains("Umbraco")
            ? GetUmbracoConstructor(implementationType)
            : DefaultBehavior.GetConstructor(implementationType);
    }

    private ConstructorInfo GetUmbracoConstructor(Type i) => 
       i.GetConstructors().OrderBy(c => c.GetParameters().Length).FirstOrDefault() 
       ?? DefaultBehavior.GetConstructor(i);
}

Upvotes: 3

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