public async Task <IActionResult> ArrangeTask(EditTaskViewModel viewModel)
{
if (!ModelState.IsValid)
{
return(View(viewModel));
}
return(await tasksManager.ArrangeTask(viewModel.Description, viewModel.DateDeadline)
? (IActionResult)RedirectToAction("Index", "Tasks").PushAlert("Task was created")
: View(viewModel.WithAlert("Arranging task failed")));
}