public async Task <IActionResult> Delete(string id)
{
try
{
if (string.IsNullOrWhiteSpace(id) || !await tourDAL.IsExistedTourIdAsync(id))
{
return(NotFound());
}
if (!await tourDAL.HasOrderByTourIdAsync(id))
{
if (!await tourDAL.DeleteTourByIdAsync(id))
{
ModelState.AddModelError("", "Delete tour failed");
}
else
{
return(RedirectToAction(nameof(Index)));
}
}
else
{
ModelState.AddModelError("", "Delete failed\nTour already has orders");
}
return(RedirectToAction(nameof(Details), new { Id = id }));
}
catch (Exception ex)
{
logger.Error(ex.Message);
throw;
}
}