public static Notification MeetupUpdated(Meetup newMeetup, DateTime originalDateTime, string originalVenue)
{
var notification = new Notification(NotificationType.MeetupUpdated, newMeetup);
// Be sure that OriginalDateTime and OriginalVenue properties have private setters to prevent them
// from being changed. They can only be changed when the right factory method is called.
notification.OriginalDateTime = originalDateTime;
notification.OriginalVenue = originalVenue;
return notification;
}
private Notification(NotificationType type, Meetup meetup)
{
if (meetup == null)
{
throw new ArgumentNullException("meetup");
}
Type = type;
Meetup = meetup;
DateTime = DateTime.Now;
}
public static Notification MeetupCancelled(Meetup meetup)
{
return new Notification(NotificationType.MeetupCancelled, meetup);
}
[ValidateAntiForgeryToken] // This is to prevent Cross-site Request Forgery (CSRF) attacks.
public ActionResult Create(MeetupFormViewModel viewModel)
{
// If our view model is not valid, return the user back to the Create view with
// validation messages showing.
if (!ModelState.IsValid)
{
// We have to re-initialize our Categories list or a null exception will be thrown.
viewModel.Categories = _context.Categories.ToList();
return View("MeetupForm", viewModel);
}
var meetup = new Meetup
{
GroupId = User.Identity.GetUserId(),
DateTime = viewModel.GetDateTime(),
CategoryId = viewModel.Category,
Venue = viewModel.Venue,
Title = viewModel.Title,
Description = viewModel.Description
};
_context.Meetups.Add(meetup);
_context.SaveChanges();
return RedirectToAction("Mine", "Meetups");
}
