public async Task <IActionResult> Edit(int id, [Bind("Id,FullName")] Url url)
{
if (id != url.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
var prevUrl = await _context.Urls.FindAsync(id);
_context.Entry(prevUrl).State = EntityState.Detached;
url.FullName = UrlHelpers.AppendProtocol(url.FullName);
if (prevUrl.FullName != url.FullName)
{
url.ShortName = UrlHelpers.ShortenUrl(url.FullName);
_context.Update(url);
await _context.SaveChangesAsync();
}
}
catch (DbUpdateConcurrencyException)
{
if (!UrlExists(url.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(url));
}
public void Update(Url url)
{
_context.Update(url);
}