October 2009 - Zope - Zope lists

problem with commits in SQLAlchemyDA
by Maric Michaud 27 Apr '10

27 Apr '10

Hi all, I wanted to use SQALchemyDA with a standalone Zope 2.11 (we only depends on CMFCore). i tried to get it up using easy_install, which is pretty straightforward, once removed the incompatible zope.component package needed in the dependencies. It ends up with the following installed packages (skipping zope 3 components) : zope.sqlalchemy-0.4-py2.4.egg z3c.sqlalchemy-1.3.10.1-py2.4.egg SQLAlchemy-0.5.5-py2.4.egg Products.SQLAlchemyDA-0.4.1-py2.4.egg At first glance, this works well, but the DA actually can't manage to commit any sql requests (I try only for insert in Mysql and postgres but I'm sure it's always true). This is quite an unexpectable behavior for a DA. I think the problem is related to this thread I found on tg-trunk newsgroup : http://www.mail-archive.com/turbogears-trunk@googlegroups.com/msg07302.html There is a misleading comment in the docstring of zope.sqlalchemy.datamanager.join_transaction speaking of a DirtyAfterFlush SessionExtension, which I never seen except in plone code. In the last I finally manage to make it work by monkey patching SQLAlchemyDA itself this way : try : from Products.SQLAlchemyDA import da from z3c.sqlalchemy import getSAWrapper, createSAWrapper if '0.4.1' in da.__file__ and not hasattr(da.SAWrapper, '_patched__wrapper_property') : da.SAWrapper._patched__wrapper_property = da.SAWrapper._wrapper def _always_invalidated_wrapper(self): """The property '_wrapper' patched by CFENet to correct what seems to be a bug in SQLAlchemyDA which prevents any commit.""" from zope.sqlalchemy.datamanager import STATUS_INVALIDATED if self.dsn: try: return getSAWrapper(self.util_id) except ValueError: return createSAWrapper( self.dsn, forZope=True, transactional=self.transactional, engine_options={'convert_unicode' : self.convert_unicode, 'encoding' : self.encoding}, extension_options={'initial_state': # the whole # point is here STATUS_INVALIDATED}, name=self.util_id) return None da.SAWrapper._wrapper = property(_always_invalidated_wrapper) except ImportError : pass Anyone has any insights about this problem, any comments on my solution, did it have been reported and corrected, or am I simply missing something ? -- _____________ Maric Michaud

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[Formulator] Anyone fixed it for Zope 2.10/2.11?
by Andreas Jung 16 Nov '09

16 Nov '09

We have a project where we are using Formulator under CMF 1.X + Zope 2.8. Unfortunately Formulator seems to horribly broken Zope 2.11. Has anyone worked on making Formulator working with some modern Zope/CMF version? Andreas -- ZOPYX Ltd. & Co. KG - Charlottenstr. 37/1 - 72070 Tübingen - Germany Web: www.zopyx.com - Email: info(a)zopyx.com - Phone +49 - 7071 - 793376 Registergericht: Amtsgericht Stuttgart, Handelsregister A 381535 Geschäftsführer/Gesellschafter: ZOPYX Limited, Birmingham, UK ------------------------------------------------------------------------ E-Publishing, Python, Zope & Plone development, Consulting

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Local File System Product
by Jan Schulze 23 Oct '09

23 Oct '09

Hi all, I have to upgrade a very old Zope/Plone site, that is using the "Local File System" Product (http://sourceforge.net/projects/localfs/) This Product has not seen any new release since 2002. Is there any successor Product or is it possible to use default Plone mechanisms to do what localfs does? Best Regards, Jan

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Zope3 on Ubuntu 64
by Brian Myers 19 Oct '09

19 Oct '09

I've installed Zope3 on a 64 bit Ubuntu platform and all seems well. I've run mkzopeinstance and the instance directory is there and looks ok. However, when I try to start the instance, it says [fail] for the zserver instance and there are no entries in the z3.log file. The default instance chosen was 9673, not 8080. I wonder if that's saying it's not finding an available port. But I've port scanned the machine and both 9673 and 8080 are open. Any ideas what to try next? How do I enable more logging output? Thanx in advance, Brian

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Prevent a logger from writing to event.log
by Bert Vanderbauwhede 16 Oct '09

16 Oct '09

Hi, Is it possible to have a logger in Zope that doesn't write to the event.log? All the other loggers can write to the event.log, but just this one logger should not. -- Bert Vanderbauwhede -- "I don't know if you noticed or not, but I'm an extremely arrogant man, who thinks all his plans will work." Rodney McKay, Stargate Atlantis

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Problem with Zodb connections pool
by Claudio Battaglino 14 Oct '09

14 Oct '09

Hi all, I've a system with Zope 2.8.8 that since some weeks is very slow. The python process keeps busy the CPU (98-99%) and the memory used by the process is growing up. Every day a script makes a pack of the ZODB and restarts Zope so the Data.fs size is stable (about 350MB). In the event.log I can see many of this warnings: 2009-10-14T11:59:14 WARNING ZODB.DB DB.open() has 8 open connections with a pool_size of 7 What does it mean? I can see also some of these messages: 2009-10-14T12:14:16 INFO ZODB.Conflict database conflict error... According to you, are the two messages related? Thank you very much claudio

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Re: [Zope] [Zope-Annce] ZClasses resurrected
by Allen Schmidt Sr. 05 Oct '09

05 Oct '09

So...we are on 2.8.10 and our biggest app on our site is a ZClass based news object. How close will this provide functionality to just drop our data.fs into 2.12 and have those zclasses work? This is huge news! Thanks Dieter!!!! -Allen Dieter Maurer wrote: > The Zope developers have ripped out the ZClasses functionality from > the Zope core in version 2.12. > > As promised, I have collected the former code in a new package > ("dm.zopepatches.zclasses" on PyPI). When imported, this package > uses monkey patching to restore the ZClasses functionality. > New tests verify the functionality as formerly described in the > Zope book (2.7 edition). > > To make "ZClasses" available again, > the ZODB root database requires "dm.zopepatches.zclasses.ClassFactory" > as "class-factory" option in the Zope configuration file. > When this option is processed, the package is imported > and the monkey patching takes place. > > > The current version does not yet restore the "distribution" functionality > (of Zope products). Let me know when you need this functionality. > >

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Zope 2.12.0 released
by Andreas Jung 01 Oct '09

01 Oct '09

On behalf of the Zope 2 developers community I am pleased to announce the official release of Zope 2.12.0. Major changes: - Ships with ZODB 3.9 - Runs on top of Python 2.5 and 2.6 (no official support for Python 2.4, your mileage may vary) - Fully eggified - you install Zope 2.12 directly from PyPI using *easy_install* or *zc.buildout* - Lots of cleanup on the module level (e.g. ZClasses have gone forever - like it or not) - Ships with the Zope component library (aka Zope 3.4) - RESTified documentation in order to generate nice looking HTML/PDF documents using Sphinx - lots of other small details For more details, check: http://docs.zope.org/zope2/releases/2.12/WHATSNEW.html Release notes: http://docs.zope.org/zope2/releases/2.12/CHANGES.html Especially read the installation instructions since the installation process is different from all other Zope versions (because of the eggification process). Keep in mind that we do no longer provide the traditional all-in-one source tarball: http://docs.zope.org/zope2/releases/2.12/INSTALL.html The official Zope 2.12 project page on PyPI can be found here: http://pypi.python.org/pypi/Zope2/ If you have found a bug, please report it on Launchpad: https://bugs.launchpad.net/zope2/ I would like to thank all people having contributed to this release. Special thanks to Tres Seaver for his tireless efforts in fixing bugs and maintaining the Zope 2 codebase and Hanno Schlichting who worked hard and steadfast on the eggification of Zope 2 and on the cleanup of various dark corners of the Zope 2 codebase. In addition we launched the dedicated zope2.zope.org microsite today. This is one of the first steps for relaunching the Zope sites (including www.zope.org) asap. Andreas Jung Zope 2 Release Manager -- ZOPYX Ltd. & Co KG \ ZOPYX & Friends Charlottenstr. 37/1 \ The experts for your Python, Zope and D-72070 Tübingen \ Plone projects www.zopyx.com, info(a)zopyx.com \ www.zopyx.de/friends, friends(a)zopyx.de ------------------------------------------------------------------------ E-Publishing, Python, Zope & Plone development, Consulting

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zope2.zope.org launched
by Andreas Jung 01 Oct '09

01 Oct '09

I am pleased to announce the launch of a new website dedicated to the Zope 2 application server: zope2.zope.org This site gives the Zope 2 application a much better representation on the web (which was more than necessary after having lived for years with the current old www.zope.org site). zope2.zope.org is not a community site. You will not be able to register or upload personal content (use www.zope.org for the time being). We will publish content on request (events, news etc.) - please contact the webmaster in such a case. It took more than half a year in order to get this site done and I would like to thank the following people for their involvement in this project: - Alma Ong (Design) - Robert Rottermann and Gerhard Hug (implementation of the Plone theme) - Jens Vagelpohl (server setup, technical support, content review) - Matthew Wilkes (content review) - Sidnei da Silva (moving Zope 2 downloads to Launchpad) - Michael Haubenwaller (the Zope webmaster) Andreas Jung Zope 2 Release Manager

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