pub async fn init_for_users(
conn: &mut PgConnection,
course_id: Uuid,
user_ids: &[Uuid],
) -> ModelResult<()>Expand description
Starts chapter locking in the course for the users: every chapter without a status gets
not_unlocked_yet, and users whose chapters are all not_unlocked_yet get the starting
chapters unlocked. For courses with chapter locking on.