[Yanel-dev] versioning

[Josias Thöny]

Hi all,

Finally we have some basic versioning with checkin/checkout and the
possibility to view old revisions. Restoring old revisions is not
possible yet, but not much is missing.
Note that there is no real gui yet.

If you want to try it out, you have to switch to the new repo
implementation. To do so, replace the content in:
src/realms/yanel-website/config/repository.xml 
by:

<repository class="org.wyona.yarep.impl.repo.fs.FileSystemRepository">
  <name>Yanel Website Repository</name>
  <paths src="../paths">
    <ignore pattern=".*\.svn"/>
  </paths>
  <content src="../content"/>
</repository>

When you edit and save a document with yulup, a new revision will be
created. With the request parameter yanel.resource.meta one is able to
see a list of revision numbers.
An old revision can be visualized by appending the request parameter
yanel.resource.revision=1234 with the corresponding revision number.

The versioning also includes checkin/checkout, which means that if user
A opens a document in yulup and then user B wants to do the same, he
will get an error message saying that the document is already checked
out by user A.
The problem is that if user A closes yulup without saving, the document
remains in checked out state. This should be fixed somehow.

Any feedback is welcome.
Any ideas for the gui? Should it be done within yulup?

Josias