Create takes a hash of values and creates a row in the database:

  'Group' is the "top level" group we're building the cache for. This is an 
  RT::Principal object

  'Member' is the RT::Principal  of the user or group we're adding
  to the cache.

  'ImmediateParent' is the RT::Principal of the group that this principal
  belongs to to get here

  int(11) 'Via' is an internal reference to CachedGroupMembers->Id of
  the "parent" record of this cached group member. It should be empty if this
  member is a "direct" member of this group. (In that case, it will be set to this 
  cached group member's id after creation)

  This routine should _only_ be called by GroupMember->Create

Delete

Deletes the current CachedGroupMember from the group it's in and cascades the delete to all submembers. This routine could be completely excised if mysql supported foreign keys with cascading deletes.

SetDisabled

SetDisableds the current CachedGroupMember from the group it's in and cascades the SetDisabled to all submembers. This routine could be completely excised if mysql supported foreign keys with cascading SetDisableds.

GroupObj

Returns the RT::Principal object for this group Group

ImmediateParentObj

Returns the RT::Principal object for this group ImmediateParent

MemberObj

Returns the RT::Principal object for this group member