public void AddFeed(Feed feed)
{
feed.ThrowIfNull();
db.Feeds.Add(feed);
db.SaveChanges();
if (FeedAdded != null)
{
FeedAdded(this, new FeedAddedEventArgs(feed));
}
}
public void DeleteFeed(Feed feed)
{
feed.ThrowIfNull();
// Feed deletion handlers need relationships to FeedItem entities to be intact, so fire
// event before db deletion.
if (FeedDeleted != null)
{
FeedDeleted(this, new FeedDeletedEventArgs(feed));
}
db.Feeds.Remove(feed);
db.SaveChanges();
}
public FeedDeletedEventArgs(Feed deletedFeed)
{
DeletedFeed = deletedFeed.ThrowIfNull();
}
public FeedAddedEventArgs(Feed addedFeed)
{
AddedFeed = addedFeed.ThrowIfNull();
}
public FeedModifiedEventArgs(Feed modifiedFeed)
{
ModifiedFeed = modifiedFeed.ThrowIfNull();
}
public void ModifyFeed(Feed feed)
{
feed.ThrowIfNull();
if (db.GetEntityState(feed) != EntityState.Modified) return;
db.SaveChanges();
if (FeedModified != null)
{
FeedModified(this, new FeedModifiedEventArgs(feed));
}
}
public bool FeedExists(Feed feed)
{
feed.ThrowIfNull();
return db.Feeds.Any(f => f.ID == feed.ID);
}