Adds the last write time of a file, to a querystring parameter, for busting local caches.
Usage: @UrlHelpers.CachebustPath("~/path/to/styles.css")
using Umbraco.Core;
namespace MyWebsite.Core.Helpers
{
public static class UrlHelpers
{
/// <summary>
/// Takes a path, and adds a querystring value matching the last write time, to bust eventual browser caching.
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static string CachebustPath(string path)
{
var file = System.Web.HttpContext.Current.Server.MapPath(path);
if (System.IO.File.Exists(file))
{
return path + "?" + System.IO.File.GetLastWriteTime(file).Ticks.ToString().ToUrlSegment();
}
else
{
return path + "?404";
}
}
}
}