[Zope] _allowed_meta_types

[Richard Jennings]

Hi,

This is a subject which has already appeared in the mailing list, but I could not see
an outcome, eg:

Jeff Kowalczyk jtk at adelphia.net 
 Wed, 1 May 2002 01:09:20 -0400 et al.

I have some meta_types which depend on some services which can be started/stopped. 
It would be elegant to stop the addition of instances when the services are not
running by adding and removing the classes from the add list, as appropriate.

Has anybody solved the problem of modifying the add-list programmatically?

TIA
Richard Jennings