public IActionResult AddEvent(AddEventTagViewModel viewModel)
{
if (ModelState.IsValid)
{
int eventId = viewModel.EventId;
int tagId = viewModel.TagId;
List <EventTag> existingItems = context.EventTags
.Where(et => et.EventId == eventId)
.Where(et => et.TagId == tagId)
.ToList();
if (existingItems.Count == 0)
{
EventTag eventTag = new EventTag
{
EventId = eventId,
TagId = tagId
};
context.EventTags.Add(eventTag);
context.SaveChanges();
}
return(Redirect("/Events/Detail/" + eventId));
}
return(View(viewModel));
}
public IActionResult AddEvent(AddEventTagViewModel viewModel) // many to many
{
if (ModelState.IsValid) // for post requests, to validate should have a tag id and event id
{
int eventId = viewModel.EventId;
int tagId = viewModel.TagId;
List <EventTag> existingTags = context.EventTags
.Where(et => et.EventId == eventId)
.Where(et => et.TagId == tagId)
.ToList();
if (existingTags.Count == 0)
{
EventTag eventTag = new EventTag
{
EventId = eventId,
TagId = tagId
};
context.EventTags.Add(eventTag);
context.SaveChanges();
}
return(Redirect("/Events/Detail/" + eventId));
}
return(View(viewModel));
}
// responds to URLs like /Tag/AddEvent/5 (where 5 is an event ID)
public IActionResult AddEvent(int id)
{
Event theEvent = context.Events.Find(id);
List <Tag> possibleTags = context.Tags.ToList();
AddEventTagViewModel viewModel = new AddEventTagViewModel(theEvent, possibleTags);
return(View(viewModel));
}
