The only requirement for an object to be stored in zodb is that it is pickeable. However, if an object is mutable (as most user-defined objects are) its class should subclass Persistent so that updates to it are automatically saved and it will get put as its own "record" in the database. Practically-speaking, all user-defined objects stored in zodb should subclass Persistent. Not doing so either implies that you really know what you are doing, or the opposite 8^).
-Casey On Apr 6, 2010, at 5:54 PM, george hu wrote: > In the official documentation, the tutorial of zodb wiki shows a Page class > who is inherited from the the Persistent. When I look at the Feeds Tool > example on Karl, none of the model classes are inherited from the Persistent, > but the objects are saved into the zodb. So I would like to know the details > of inheriting from the Persistent, or the consequence of not inherit? > > Thanks > > George Hu > _______________________________________________ > Repoze-dev mailing list > Repoze-dev@lists.repoze.org > http://lists.repoze.org/listinfo/repoze-dev _______________________________________________ Repoze-dev mailing list Repoze-dev@lists.repoze.org http://lists.repoze.org/listinfo/repoze-dev
