WFFM : custom SQL provider to store form data

CustomSqlFormsDataProvider.cs

using Sitecore.Diagnostics;
using Sitecore.WFFM.Abstractions.Analytics;
using Sitecore.WFFM.Abstractions.Shared;
using Sitecore.WFFM.Analytics.Providers;
using System;
using System.Collections.Generic;
using System.Web;

namespace Website.WFFM.Providers
{
    public class CustomSqlFormsDataProvider : SqlFormsDataProvider
    {
        public CustomSqlFormsDataProvider(string connectionStringName, ISettings settings, IDbConnectionProvider connectionProvider) : base(connectionStringName, settings, connectionProvider)
        {

        }

        public override void InsertFormData(FormData form)
        {
            try
            {
                Assert.ArgumentNotNull(form, "form");
                Assert.ArgumentNotNull(form.Fields, "form.Fields");

                //custom logic starts here    
                InsertBrowserDetails(ref form);
                //custom logic ends here

                base.InsertFormData(form);
                Log.Audit("Form data is successfully saved to db ", this);

            }
            catch (Exception e)
            {
                Log.Error("Exception occured while saving Form data " + e.Message, this);
            }
        }

        /// <summary>
        /// Insert Browser Name and Version
        /// </summary>
        /// <param name="fields"></param>
        public void InsertBrowserDetails(ref FormData form)
        {
            List<FieldData> fieldDataList = new List<FieldData>(form.Fields);
            var request = HttpContext.Current.Request;
            FieldData browserFieldData = new FieldData()
            {
                Id = Guid.NewGuid(),
                FieldId = new Guid("{2908AEEB-8663-4127-9BFD-FD7E6FCE2602}"),
                FieldName = "BROWSER DETAILS",
                Value = "Browser Name : " + request.Browser.Browser + " Browser Version : " + request.Browser.Version,
                Data = null
            };
            fieldDataList.Add(browserFieldData);
            form.Fields = fieldDataList;
        }
    }
}