#73 — Migration from 0.9.0b1 (and earlier) to 1.0

A Plone 2.5 site has been using CMFBibAT for some time and has migrated from 0.8 to 0.9.0b1. On migration to Plone 3 and version 1.0, schemas of a sub-set of the bib items in the site appeared not to have updated. These turned out to be items created by earlier versions of CMFBibAT. A manual solution was to use the archetypes_tool > Update Schemas tab, selecting the Remove schema attributes from instance option.

Another possibility would be to adjust line 278 of migrations/cmfbib08to09.py

obj._updateSchema(remove_instance_schemas=True)

which would catch any 0.8 content migrating to 1.0

and in cmfbib09to10.py

do a spot check of the first 10 created bib items on the site and examine whether they have 'identifiers' as a field, if true, update the schemas with remove_instance_schema=True.

I've attached my version of cmfbib09to10.py - it needs testing, but has worked for me.