This is best explained by example. Let's say you have two models, Foo and Bar, both under version control.
>>> class Bar(models.Model): ... pass ... >>> class Foo(models.Model): ... bar = models.ForeignKey(Bar) If you save an instance of Foo, then the primary key of the referenced Bar is stored in the version. Thus, rolling back a version of Foo will not roll back the version of Bar. However, Reversion allows you to create revisions that group related changes together: >>> @create_revision ... def save_relations(foo, bar): ... foo.save() ... bar.save() This will group the two changes together. They can then be rolled back as a single unit. David. Marek Stępniowski wrote: > On Wed, Oct 1, 2008 at 5:25 PM, David Hall <[EMAIL PROTECTED]> wrote: >> I've just released an open-source version control application for >> Django. It is available for download from Google code. >> >> http://code.google.com/p/django-reversion/ >> >> Features include: >> >> - Roll back to any point in a model's history - an unlimited undo >> facility! >> - Recover deleted models - never lose data again! >> - Admin integration for maximum usability. >> - Group related changes into revisions that can be rolled back in a >> single transaction. >> - Automatically save a new version whenever your model changes using >> Django's flexible signalling framework. >> - Automate your revision management with easy-to-use middleware. >> >> It can be easily added to your existing Django project with an >> absolute minimum of code changes. >> >> It's so far been previewed by a half dozen developers, with good >> feedback. I'd appreciate any comments / suggestions you may have to >> offer. > > How does django-reversion deal with relationships between Django models? > > Version-controlling relationships between entities is an Achilles heel > of such applications. I have read django-reversion docs on google code > wiki, but I couldn't find any information on that matter. > > -- David Hall Technical Lead Etianen.com Tel: 07896 106290 Email [EMAIL PROTECTED] Web www.etianen.com ------------------------------------------------------------------- Ask for help at [EMAIL PROTECTED] Etianen.com is a small, professional web development agency that specialises in fast-paced, creative development. ----------------- enlightened website development ----------------- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
