disabledDatePredicate.or(feed.disabledUntil.lt(new Date()));
HibernateQuery query = newQuery().from(feed);
if (lastLoginThreshold != null) {
QFeedSubscription subs = QFeedSubscription.feedSubscription;
QUser user = QUser.user;
query.join(feed.subscriptions, subs).join(subs.user, user).where(disabledDatePredicate, user.lastLogin.gt(lastLoginThreshold));
} else {
query.where(disabledDatePredicate);
}