Function headless_lms_server::domain::authorization::can_user_view_chapter

pub async fn can_user_view_chapter(
    conn: &mut PgConnection,
    user_id: Option<Uuid>,
    course_id: Option<Uuid>,
    chapter_id: Option<Uuid>,
) -> Result<bool, ControllerError>

Can be used to check whether user is allowed to view some course material. Chapters can be closed and and limited to certain people only.