Le 04/05/10 09:10, Denis Gervalle a écrit :
On Mon, May 3, 2010 at 21:54, Ludovic Dubost <[email protected] <mailto:[email protected]>> wrote:


    Hi Denis,

    Thanks for the feedback and testing


    Le 03/05/10 21:20, Denis Gervalle a écrit :

        Hi Ludovic,

        I have made some quick testing of this application in our
        sandbox, and I
        have discovered weird issues in relation with the document
        history.

        Here is what I have noticed so far:

    I've seen indeed some issue with the history. I thought it was
    limited to having to resave the document to fix it.


Resaving may be not possible due to the exception you may get when you save.
There is reset history that allows to fix the page if the history is broken (however that's not enough. we need to find the source of the issue)

    I will look into it. I had to add some code specially for handling
    attachments. I suspect that is what is creating the problems


No attachment in my test, just a very small page. The issue is in the way you manage archives.
I meant "caused by the code for attachments" not "caused when there is attachments"


         - Checking out new document from the repository, the document
        does not have
        an history at all, and the creator of the document is not set
         - Checking out a existing document from the repository
        (reverting a
        change), cause the history of the document to be somewhat
        inverted, the
        current document being 1.1 version and the history containing
        later
        versions... (except when only 1.1 version were existing). The
        document also
        cause an exception when you try to save some modification to it:

        Detailed information:
            Error number 3201 in 3: Exception while saving document
        Main.TestPage2
         Wrapped Exception: Failed to commit or rollback transaction.
        Root cause []
         com.xpn.xwiki.XWikiException: Error number 3201 in 3:
        Exception while
        saving document Main.TestPage2
         Wrapped Exception: Failed to commit or rollback transaction.
        Root cause []
         at
        
com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:638)
         ...
         Wrapped Exception:
         org.hibernate.StaleStateException: Batch update returned
        unexpected row
        count from update [1]; actual row count: 0; expected: 1

        The change is then recorded in the archive and not in the
        document, creating
        the same "inverted" history situation. I suspect it happen due to
        a discrepancy between the cache and the database, since after
        a restart, the
        1.1 (current) version is no more in the history.

         - After a restart, I also got some "C" status, which are not
        documented,
        and I imagine, means conflict. But since this is just a
        restart that cause
        them, this not expected. Looking at the details, this append
        on groups,
        because of object GUID changes without any other changes, and
        it may be
        unrelated to your application in particular.

    Interesting. How come would GUID change in groups ?


I do not investigate, just noticed that after a tomcat restart, one GUID has changed on all groups.
Maybe the GUID is not set before. This is something to look at.

    Indeed this does not seem related to the SVN app.
    Either this is normal and then we could change the comparaison to
    ignore such GUID changes. However the GUID is important data.


Probably it is not related and would not do that.

         - At an initial attempt to go back to the list after
        committing and then
        updating a new page, it has shown a status of '?' in place of
        'M', but I
        have not reproduced that later :(

    The only reason to show ? is that either

     there is a change both in SVN and in the Wiki


Does this means C and not "?" ?
Right C is conflict. ? when there is no status info (except if pages are identifical, in this case they are not reported)

    OR
     the status information is not filled in


Agree, and I have get that while the status is available, but I was unable to reproduce :(

         - SVN operations also cause the recycle bin to contains
        deleted document,
        is it intended ?

    This is possible.. I have to check


        I also have a question regarding the usage of the status
        field. Why it is
        required to keep this status ? if needed, why coding it in
        place of keeping
        it with each document (in an xobject) ?

    I thought about that but did not want the SVN application to have
    any impact on the wiki you want to commit to SVN


Well, it would be nice, but it has more than you expect, and the way you get rid of the Tag object could also be an issue, due to the bad way object are deleted currently in documents.
Do you really need that status information ?
Yes we could have removed it, but i wanted NO impact on the pages of the wiki so that it could be used in shared wikis environments without changing the data too much. I did not find a way to do without the status that would not mean going through the whole history until you find the matching data, and this solution would be way to slow.

Ludovic


Denis

        On Thu, Apr 22, 2010 at 19:42, Ludovic
        Dubost<[email protected] <mailto:[email protected]>>  wrote:

            Hi,


            If you are following the xwiki comments, you might have
            seen that I've been
            working on an SVN application for XWiki.

            I've published this application here:
            http://code.xwiki.org/xwiki/bin/view/Applications/SVNApplication

            The objective of this application is to bring to XWiki
            Applications more
            professional development practices.
            One of them is the ability to do version management of
            XWiki applications.
            Of course XWiki contains versioning but this versioning
            does not apply
            accross wikis and makes it difficult to contribute code
            back to the
            community.

            With the SVN application you can now directly contribute
            code and code
            updates to the XWiki SVN contrib repository or to any
            other SVN repository.
            You can even commit in multiple SVN repositories in the
            same Wiki.

            The SVN Application supports:

            1/ Compare the Wiki (limited to a list of spaces) with the
            SVN repository
            listing
              - added pages in the wiki
              - modified pages in the wiki
              - new pages in SVN
              - modified pages in SVN
              - conflicting pages modified in both SVN and the Wiki
            2/ Commit in the SVN Repository
            3/ Update from the SVN Repostory
            4/ Show differences between SVN and the Wiki (in XML)

            The SVN Application does not provide merging and conflict
            resolution. The
            SVN Application normalizes XWiki XML allowing the cleanup
            the XML to not
            have the user, the dates, comments. This is necessary to
            provide concurrent
            development on multiple XWiki server without telling you
            that the pages have
            changed all the time.

            The source code is of course in SVN at
            http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xwiki-svn/

            Ludovic

            --
            Ludovic Dubost
            Blog: http://blog.ludovic.org/
            XWiki: http://www.xwiki.com
            Skype: ldubost GTalk: ldubost


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-- Ludovic Dubost
    Blog: http://blog.ludovic.org/
    XWiki: http://www.xwiki.com
    Skype: ldubost GTalk: ldubost




--
Denis Gervalle
SOFTEC sa - CEO
eGuilde sarl - CTO



--
Ludovic Dubost
Blog: http://blog.ludovic.org/
XWiki: http://www.xwiki.com
Skype: ldubost GTalk: ldubost

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