Deleting fields content on item copied

Today we were assisting content publishing on a site we built, and I have been asked to possibility to clear some fields when they were copying item. Well here is what we did:

1- Creating the class that will delete the field:

The class will be used as an handler in the On Item Copied event. Here is the code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Sitecore.Data.Items;
using Sitecore.Events;
using MyProject.Common.Constants;
using Sitecore.Configuration;

namespace MyProject.Business.Sitecore.Events.ItemCopied
{
    public class ClearFields
    {
        /// 

        /// Clear fields to avoid duplicate data when copying or duplicating item on Authoring
        /// 
        /// 
        /// 
        protected void OnItemCopied(object sender, EventArgs args)
        {
            if (args != null)
            {
                Item item = Event.ExtractParameter(args, 1) as Item;
                if (item == null)
                    return;
                foreach (var field in GetFieldsToClear())
                {
                    if (!string.IsNullOrEmpty(item[field]))
                    {
                        item.Editing.BeginEdit();
                        item.Fields[field].Value = "";
                        item.Editing.EndEdit();
                    }
                }
            }
        }

        private static List GetFieldsToClear()
        {
            string strFields = Settings.GetSetting(SitecoreSettings.ClearFieldsName);
            return strFields.Split('|').Select(strField => strField.Trim()).ToList();
        }
    }
}

You will notice we have stored the field names in a sitecore settings so we could add more if need to extend it later on.

2- Hook the event in the configuration file:

      < event name="item:copied">
        < handler type="MyProject.Business.Sitecore.Events.ItemCopied.ClearFields, MyProject.Business" method="OnItemCopied" />
      < /event>

Here we go, now when copying an item you will be able to clear the Rich Text Editor field, the Meta Data...