plone/Products.Archetypes — pull request #5 by jfroche (2012-07-09 13:18:52+00:00)
Title: Use getParentNode to get the parent object in computed.pt

Continue the work done in 555160ca02e2d0998d16546c9b2ce309457319c2 . Use getParentNode on computed field just like field.pt does