public Task <bool> SaveChangesAsync()
{
return(Task.Run(() =>
{
if (FilmsToAdd.Count() <= 0 && ActorsToAdd.Count() <= 0 &&
DirectorsToAdd.Count() <= 0 && FilmsToDelete.Count() <= 0 &&
ActorsToDelete.Count() <= 0 && DirectorsToDelete.Count() <= 0)
{
return false;
}
foreach (var film in FilmsToAdd)
{
film.Id = Films.Count() + 1;
Films.Add(film);
}
foreach (var actor in ActorsToAdd)
{
actor.Id = Actors.Count() + 1;
Actors.Add(actor);
}
foreach (var director in DirectorsToAdd)
{
director.Id = Directors.Count() + 1;
Directors.Add(director);
}
foreach (var film in FilmsToDelete)
{
var filmInList = Films.Where(f => f.Id == film.Id).FirstOrDefault();
Films.Remove(filmInList);
}
foreach (var actor in ActorsToDelete)
{
var actorInList = Actors.Where(f => f.Id == actor.Id).FirstOrDefault();
Actors.Remove(actorInList);
}
foreach (var director in DirectorsToDelete)
{
var directorInList = Directors.Where(f => f.Id == director.Id).FirstOrDefault();
Directors.Remove(directorInList);
}
Initialize();
return true;
}));
}
public void Add <T>(T entity) where T : class
{
switch (entity.GetType().ToString())
{
case ("Films.Core.Director"):
DirectorsToAdd.Add(entity as Director);
break;
case ("Films.Core.Film"):
FilmsToAdd.Add(entity as Film);
break;
case ("Films.Core.Actor"):
ActorsToAdd.Add(entity as Actor);
break;
default:
break;
}
}