public Person DeletePerson(Person personToDelete)
{
using (EventSchedulerContext dbContext = new EventSchedulerContext())
{
bool found = dbContext.People.Any(p => p.JMBG.Equals(personToDelete.JMBG));
if (found)
{
Person foundPerson = dbContext.People.Include(p => p.ScheduledEvents).SingleOrDefault(p => p.JMBG.Equals(personToDelete.JMBG));
List <Event> updatedEvents = new List <Event>();
foreach (Event e in foundPerson.ScheduledEvents)
{
updatedEvents.Add(dbContext.Events.First(ev => ev.EventId.Equals(e.EventId)));
}
Person deletedPerson = dbContext.People.Remove(foundPerson);
try
{
dbContext.SaveChanges();
}
catch (Exception e)
{
logger.Error($"Error in DbMenager. Message: {e.Message}");
}
logger.Info($"DeletePerson successful");
IObserverPattern foundObserver = _eventNotifier.Observers.FirstOrDefault(p => ((Person)p).JMBG.Equals(personToDelete.JMBG));
_eventNotifier.UnregisterObserver(foundObserver);
deletedPerson.ScheduledEvents = new List <Event>(updatedEvents);
return(deletedPerson);
}
return(null);
}
}
public Person ModifyPerson(Person personToModify)
{
using (EventSchedulerContext dbContext = new EventSchedulerContext())
{
bool found = dbContext.People.Any(p => p.JMBG.Equals(personToModify.JMBG));
if (found)
{
Person foundPerson = dbContext.People.Include(p => p.ScheduledEvents).SingleOrDefault(p => p.JMBG.Equals(personToModify.JMBG));
dbContext.People.Attach(foundPerson);
foundPerson.JMBG = personToModify.JMBG;
foundPerson.FirstName = personToModify.FirstName;
foundPerson.LastName = personToModify.LastName;
foundPerson.LastEditTimeStamp = DateTime.Now;
foreach (Event e in personToModify.ScheduledEvents)
{
Event foundEvent = dbContext.Events.FirstOrDefault(ev => ev.EventId.Equals(e.EventId));
if (foundEvent != null)
{
dbContext.Events.Attach(foundEvent);
if (foundPerson.ScheduledEvents.Contains(foundEvent, new EventComparer()))
{
Event eventInPerson = foundPerson.ScheduledEvents.FirstOrDefault(eve => eve.EventId.Equals(foundEvent.EventId));
foundPerson.ScheduledEvents.Remove(eventInPerson);
foundPerson.ScheduledEvents.Add(foundEvent);
}
else
{
foundPerson.ScheduledEvents.Add(foundEvent);
}
}
else
{
foundPerson.ScheduledEvents.Add(e);
}
}
try
{
dbContext.SaveChanges();
}
catch (Exception e)
{
logger.Error($"Error in DbMenager. Message: {e.Message}");
}
logger.Info($"ModifyPerson successful");
IObserverPattern personObserver = _eventNotifier.Observers.FirstOrDefault(p => ((Person)p).JMBG.Equals(personToModify.JMBG));
_eventNotifier.UnregisterObserver(personObserver);
_eventNotifier.RegisterObserver(new PersonObserver(foundPerson));
return(foundPerson);
}
return(null);
}
}
public virtual void UnregisterObserver(IObserverPattern observer)
{
Observers.Remove(observer);
}
public virtual void RegisterObserver(IObserverPattern observer)
{
Observers.Add(observer);
}