/// <summary>
/// Index Get Method. Its return Index view
/// </summary>
/// <param name="id"></param>
public ActionResult Index(string id)
{
// check id is empty or not, if not empty then search long url from database.
// then redirect to long url
if (!string.IsNullOrEmpty(id))
{
if (!db.tblSUrls.Any(x => x.ShortUrl == id))
{
return RedirectToAction("Error");
}
else
{
tblSUrl longUrl = new tblSUrl();
longUrl = db.tblSUrls.First(x => x.ShortUrl == id);
return Redirect(longUrl.LongUrl);
}
}
ViewBag.message = "welcome back, Guest";
return View();
}
/// <summary>
/// Deprecated Method for adding a new object to the tblSUrls EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddTotblSUrls(tblSUrl tblSUrl)
{
base.AddObject("tblSUrls", tblSUrl);
}
/// <summary>
/// Create a new tblSUrl object.
/// </summary>
/// <param name="sUrl_ID">Initial value of the SUrl_ID property.</param>
/// <param name="longUrl">Initial value of the LongUrl property.</param>
/// <param name="shortUrl">Initial value of the ShortUrl property.</param>
public static tblSUrl CreatetblSUrl(global::System.Int32 sUrl_ID, global::System.String longUrl, global::System.String shortUrl)
{
tblSUrl tblSUrl = new tblSUrl();
tblSUrl.SUrl_ID = sUrl_ID;
tblSUrl.LongUrl = longUrl;
tblSUrl.ShortUrl = shortUrl;
return tblSUrl;
}
public ActionResult ShortUrlReturn(string longurl)
{
// shortUrlid variable is used for saving randomly generated short url
string shortUrlid = null;
// check longurl parameter is empty or not.
// if longurl parameter is empty then return to Index view with ViewBag message
if (string.IsNullOrEmpty(longurl))
{
ViewBag.error = "Please, enter your long url";
return View();
}
// else check long url is valid or not.
// if long url is not valid then return to Index view with ViewBag message
else
{
if(!IsUrlValid(longurl))
{
ViewBag.error = "Please, enter a valid url";
return View();
}
if (db.tblSUrls.Any( x => x.LongUrl == longurl))
{
tblSUrl searchLongUrl = new tblSUrl();
searchLongUrl = db.tblSUrls.First(x => x.LongUrl == longurl);
ViewBag.success = "Your short url " + ConfigurationManager.AppSettings["WebsiteUrl"] + "/" + searchLongUrl.ShortUrl;
return View();
}
}
// saving randomly generated short url
shortUrlid = shortUrl();
// check short url already contains in the database or not
if (db.tblSUrls.Any(x => x.ShortUrl == shortUrlid))
{
// if short url already contains in the databse
// then its re-generated new short url
shortUrlid = shortUrl();
}
// if firstly generated short url is not present in the database
// then long url and short url save in the database
// and initialize ViewBag message
else
{
// create a object for SUrl table
tblSUrl singleSUrl = new tblSUrl();
// initialize long url
singleSUrl.LongUrl = longurl;
// initialize short url
singleSUrl.ShortUrl = shortUrlid;
// save long url and short url into SUrl table
db.tblSUrls.AddObject(singleSUrl);
db.SaveChanges();
ViewBag.success = "Your short url " + ConfigurationManager.AppSettings["WebsiteUrl"] + "/" + shortUrlid;
}
// return Index View
return View();
}