public async Task <IActionResult> Edit(TagView result)
{
var tag = await _tagService.Get(result.Id);
if (tag.Name != result.Name)
{
if (await _tagService.CheckIfTagExist(result.Name))
{
ModelState.AddModelError("", "Tag o tej nazwie już istnieje");
}
}
if (!ModelState.IsValid)
{
return(View(result));
}
await _tagService.Update(TagHelpers.MergeViewWithModel(tag, result));
return(RedirectToAction("List"));
}