Note: After some coding, I found out that it might be more clever to start building a generic migration API that could be used for other kind of migrations before actually implementing the class migration part. Thus I'll rename the project to application-migrator and the project ID to MIGRATOR. Thanks, Clément On 07/28/2018 08:33 AM, Clément Aubin wrote:

Hi again,

On 07/28/2018 08:24 AM, Clément Aubin wrote:

...

Hi devs,

I would like to start a new contrib extension called application-class-migrator.

What is it? If you want to maintain an application, you might need to perform some migrations on the data structure used by the app (rename xproperties, add some, remove some, refactor some, …).

The idea of this application is simply to provide a user friendly solution for application developers to handle migrations. Those migrations can be described in a specific XObject in a page. The migrations will be executed on extension upgrade.

I'll take care of creating the repo and the project on JIRA.

Done, see the following links:

* https://github.com/xwiki-contrib/application-class-migrator * https://jira.xwiki.org/projects/CLASSMIG

Have a nice day

...

Thanks, Clément