public FeedRepo(UlearnDb db)
{
this.db = db;
notificationsRepo = new NotificationsRepo(db);
visitsRepo = new VisitsRepo(db);
}
public FeedRepo(UlearnDb db, NotificationsRepo notificationsRepo, VisitsRepo visitsRepo)
{
this.db = db ?? throw new ArgumentNullException(nameof(db));
this.notificationsRepo = notificationsRepo ?? throw new ArgumentNullException(nameof(notificationsRepo));
this.visitsRepo = visitsRepo ?? throw new ArgumentNullException(nameof(visitsRepo));
}