Interface for plugin classes that want to support Learning Progress.
getLPNotAttempted()
Get all user ids with LP status not attempted.
getLPStatusForUser($a_user_id)
Get current status for given user.
getLPInProgress()
Get all user ids with LP status in progress.
getLPFailed()
Get all user ids with LP status failed.
getLPCompleted()
Get all user ids with LP status completed.