using System;
using System.Web.Mvc;

namespace SEIeSCM
{
    public class ComnInfoModelBinder : IModelBinder
    {
        private const string comnSessionKey = "_user_info_";

        public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            if (bindingContext.Model != null)
            {
                throw new InvalidOperationException("Cannot updte instances");
            }
            ComnInfo comnInfo = controllerContext.HttpContext.Session["_user_info_"] as ComnInfo;
            if (comnInfo == null)
            {
                comnInfo = new ComnInfo();
                controllerContext.HttpContext.Session["_user_info_"] = comnInfo;
            }
            return comnInfo;
        }
    }
}