Property Inheritance in Episerver CMS

InheritAttribute.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace AllanTech.Web.PropertyInheritance
{
    public class InheritAttribute : Attribute
    {
        /// <summary>
        /// Name of Boolean property that indicates if this property should be inherited
        /// </summary>
        public string SwitchPropertyName { get; set; }

        /// <summary>
        /// Inherit this value if it's null
        /// </summary>
        public bool InheritIfNull { get; set; }

        /// <summary>
        /// Inherit this value if it's null or empty
        /// </summary>
        public bool InheritIfNullOrEmpty { get; set; }

        /// <summary>
        /// Name of property on parent content to inherit from. Default is same name.
        /// </summary>
        public string ParentPropertyToInheritFrom { get; set; }

        /// <summary>
        /// Keep searching ancestors until Root
        /// </summary>
        public bool SearchAllAncestors { get; set; }

    }
}

PropertyInheritor.cs

using EPiServer.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using AllanTech.Web.Helpers;
using EPiServer.ServiceLocation;
using EPiServer;
using EPiServer.Data.Entity;
using System.Reflection;

namespace AllanTech.Web.PropertyInheritance
{
    public static class PropertyInheritor
    {

        public static T PopulateInheritedProperties<T>(this T Content) where T : PageData
        {
            var rt = (Content as IReadOnly).CreateWritableClone() as PageData;
            var props = Content.GetPropertiesWithAttribute(typeof(InheritAttribute));
            bool modified = false;
            foreach (var prop in props)
            {
                var attr = prop.GetCustomAttribute<InheritAttribute>(true);

                if (
                    (!String.IsNullOrEmpty(attr.SwitchPropertyName) && ((bool)Content.GetType().GetProperty(attr.SwitchPropertyName).GetValue(Content))) ||
                    ((attr.InheritIfNull || attr.InheritIfNullOrEmpty) && (prop.GetValue(Content) == null)) ||
                    (attr.InheritIfNullOrEmpty && ((prop.PropertyType == typeof(ContentArea)) && (prop.GetValue(Content) as ContentArea).Count == 0))
                    )
                {
                    //Resolve Inherited Properties
                    var repo = ServiceLocator.Current.GetInstance<IContentRepository>();
                    foreach(var a in repo.GetAncestors(Content.ContentLink).Take((attr.SearchAllAncestors)?1000:1))
                    {
                        var parentprop = (a as IContentData).Property[attr.ParentPropertyToInheritFrom ?? prop.Name];
                        if (parentprop!=null && !parentprop.IsNull)
                        {
                            prop.SetValue(rt, parentprop.Value);
                            modified = true;
                            break;
                        }
                    }
                }
            }
            if (modified)
            {
                rt.MakeReadOnly();
                return rt as T;
            }
            return Content;

        }

        
    }
}