[Zope] Upgrading Zope

[Andreas Jung]

--On 18. Oktober 2006 14:55:33 +0200 Nightflyer <nightflyer73 at gmail.com> 
wrote:

> Hi All,
> 	I've been asked to migrate an ancient Zope server from 2.1.x to the
> latest 2.x or 3.x version.
>
> This server only have a couple of applications, both using Z SQL Methods,
> DHTML methods and documents, some products and some external methods. They
> don't use ZPT or Script (python) at all.

Nobody will promise you that a migration to the latest 2.X version will 
work. You install a new Zope instance and figure it out own our own. If 
there are problems, come back. Nobody knows what your application is doing 
so is bascially a trial-and-error game. Using only DTML and ZSQL 
methods...does not sound so impossible for a migration...just try it.

>
> I'd like to know if you think that such migration is feasible or if I'll
> encounter some problems.
>
> Do you think it is better to migrate to the latest version of the 2.x or
> 3.x branch?
>

Zope 2 and Zope 3 are totally incompatible. Stick with the latest 2.X 
version unless you really want to migrate your code *manually* to the 
complete new architecture of Zope 3 (Z3 has no ZSQL methods - it has 
something similar but nothing that is compatible).

-aj
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