public async Task <IActionResult> Add(AddLabelViewModel model)
{
if (!ModelState.IsValid)
{
return(View(model));
}
if (!await _todoRepository.AddLabelAsync(new TodoItemLabel(model.Value)))
{
ModelState.AddModelError("Value", "Label is already added.");
return(View(model));
}
return(RedirectToAction("Index"));
}