public async Task <IActionResult> RemovePeople([FromForm] RemovePeopleFromCity remove)
{
if (remove.CityId == Guid.Empty)
{
ModelState.AddModelError(string.Empty, "The Id could not be fetched.");
return(BadRequest(ModelState));
}
var result = await _service.RemovePeople(remove);
if (result.Message == ActionMessages.Updated)
{
return(RedirectToAction(nameof(Details), "City", new { id = result.City.Id, updated = true }));
}
else if (result.Message == ActionMessages.NotFound)
{
ModelState.AddModelError(string.Empty, "The requested city could not be found.");
return(NotFound(ModelState));
}
else
{
ModelState.AddModelError(string.Empty, $"Error Type: {result.Message.ToString()}");
return(BadRequest(ModelState));
}
}
public async Task <CityWithMessage> RemovePeople(RemovePeopleFromCity remove)
{
try
{
if (remove.CityId == Guid.Empty)
{
throw new Exception();
}
if (remove.PeopleId == null || remove.PeopleId.Count == 0)
{
return(new CityWithMessage {
Message = ActionMessages.Empty
});
}
var city = await _db.Cities
.Include(x => x.People) // IMPORTANT: Forget this and it won't remove any people.
.Include(x => x.Country) // And this for the View.
.SingleOrDefaultAsync(x => x.Id == remove.CityId);
if (city == null)
{
return(new CityWithMessage {
Message = ActionMessages.NotFound
});
}
foreach (var personId in remove.PeopleId)
{
var person = await _db.People.SingleOrDefaultAsync(x => x.Id == personId) ?? throw new Exception();
if (city.People.Contains(person))
{
city.People.Remove(person);
}
}
await _db.SaveChangesAsync();
return(new CityWithMessage {
City = city, Message = ActionMessages.Updated
});
}
catch (Exception)
{
return(new CityWithMessage {
Message = ActionMessages.Failed
});
}
}
