Hi devs.
I am testing the migration from XEM 4.5.4 to XE 5.2 (local build). Sorin
has already reported some problems in JIRA.
For me, the problem occurs when I use the "upgrade all wikis" option.
Let me explain it:
= Prerequisites =
1. Install a new XEM 4.5.4.
2. Create a workspace with WorkspaceManager (called 'workspace1')
3. Create a new subwiki with WikiManager (called 'subwiki1') - I create it
from a XAR template which is xwiki-enterprise-ui-all.
= Upgrade, part 1 =
1. Replace the webapp with a 5.2.
2. Put your own maven directory as the extension repository. (in
xwiki.properties:
extension.repositories=local:maven:file://${sys:user.home}/.m2/repository)
3. Upgrade the main wiki
It works:
- For example Main.SpaceIndex is in version 2.1.
- In the "installed extensions" menu, I can see all extensions correctly
upgraded.
= Upgrade, part 2 =
== Scenario 1 ==
1. In the DW, choose "Upgrade all wikis. Choose this option if all wikis
are administrated by the same entity.".
It displays "All extensions are up to date. "
But:
'workspace1' is not upgraded:
- for example Panels.WorkspaceInformationPanel is still in version 1.1
- In the "installed extensions" menu, I see 'XWiki Enterprise - UI All'. It
has not been upgraded because there is no new version for it. It has been
replaced by xwiki-enterprise-ui-wiki-all.
'subwiki1' is not upgraded:
- for example Main.SpaceIndex is still in version 1.1
- In the "installed extensions" menu, I see 'XWiki Enterprise - UI All '
with the message 'Installed but not valid'. It has not been upgraded
because there is no new version for it. It has been replaced by
xwiki-enterprise-ui-common.
== Scenario 2 ==
1. In the DW, choose "Upgrade only the current wiki. Choose this option if
each wiki is administrated by a separate entity. In this case it's best if
each wiki is upgraded by its owner. ".
2. Go to every subwiki, logged as Admin. You will see the DW.
3. Select "Yes, this is an upgrade".
Note: if you upgrade a subwiki, the proposed UI will be XWiki Enterprise -
UI - Common meanwhile if you upgrade a workspace, it will be XWiki
Enterprise - UI - Wiki. It is normal.
4. You will see "Administration Application - 5.2-SNAPSHOT - Installed
version 4.5.4 is not valid", and the same for several extensions.
5. Click on "continue", anyway.
All is OK. In the "installed extensions" menu, I can see all extensions
correctly upgraded.
= Conclusion =
- The scenario 1 don't work at all.
- In the scenario 2, it displays "Installed version 4.5.4 is not valid"
which is disturbing, because everything go right in the end.
As Marius and Thomas explained me:
> When you have an extension installed with version X, and then a new
> version Y is released but with the id changed, extension manager is not
> able to detect it. Ideally the EM should detect this and propose the user
> to upgrade from version X to Y even if the extension id has changed between
> version X and Y.
>
How can we solve these issues?
Thanks,
Guillaume Louis-Marie Delhumeau
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