Blog: Use item wrappers as models in Sitecore MVC - 3.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Sitecore.Mvc.Pipelines.Response.GetModel;
using Sitecore.Mvc.Presentation;
using UnitTestingDemo.Website.Domain;
using UnitTestingDemo.Website.Models;

namespace UnitTestingDemo.Website.Pipelines
{
    /// <summary>
    /// This processor can be used in the mvc.GetModel pipeline to resolve the current CDM based model,
    /// from the context item or the datasource (if defined).
    /// The rendering must have the parameter 'typedmodel=1' defined, or else this processor will leave it alone.
    /// </summary>
    public class CreateTypedRenderingModel : GetModelProcessor
    {

        public override void Process(GetModelArgs args)
        {
            if (args.Result == null && "1".Equals(args.Rendering.Parameters["typedmodel"]))
            {
                args.Result = CreateTypedModel(args.Rendering);
            }
        }

        /// <summary>
        /// Uses reflection to create a CDM based model for a rendering
        /// </summary>
        /// <param name="rendering"></param>
        /// <returns></returns>
        protected virtual object CreateTypedModel(Rendering rendering)
        {
            Type targetType = ItemWrapper.GetTypeForTemplateId(rendering.Item.TemplateID);
            var d1 = typeof(RenderingModel<>);
            Type[] typeArgs = { targetType };
            var makeme = d1.MakeGenericType(typeArgs);
            return Activator.CreateInstance(makeme);
        }
    }
}