-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dieter Maurer wrote:
Andreas Jung wrote at 2006-1-28 09:04 +0100:
--On 27. Januar 2006 22:32:07 +0100 Dieter Maurer <dieter@handshake.de> wrote:
Andreas Jung wrote at 2006-1-27 07:04 +0100:
... Importing stuff from a new Zope version into an older Zope version was _never_ a supported feature. Only import between _identical_ versions. Anything else makes little sense and is unsupported.
Of course, you might be happy when you can import into a newer Zope version from an older one. At least, that makes some sense :-)
Of course we would be happy if we could do that. But export/import was never designed to deal with migration issue.
Export/import is essentially what the ZODB does all the time.
If export/import does not work between given Zope versions, it is quite likely that the same Zope versions will have difficulties with storages exchange -- and this *IS* a migration issue, Zope should be concerned with (and not the applications).
If it does, export/import will simply follow (in most cases).
Agreed: for "forward-migration" of data, Zope has historically tried *very* hard to ensure that objects which had been created under an older version of Zope would be unpicklable under a newer version: we have treated the exceptions as serious bugs (where the problem was not due to third-party application code, anyway). However, the original poster wants to be able to import a .zexp file exported from a *newer* version of Zope into an *older* version. Keeping that path open has *not* been a goal for Zope, and so the OP needs to find another way to solve his problem. Tres. - -- =================================================================== Tres Seaver +1 202-558-7113 tseaver@palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFD2/hz+gerLs4ltQ4RAjcnAKC8wR36zfc8Q5X8PduwYnWYr26tOgCdE0ca GTQkMwmmhXM76Y67b3PBg7w= =s9Qh -----END PGP SIGNATURE-----