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Conflict errors
by Sudesh soni 30 Jul '07

30 Jul '07

BlankHi, I am frequently recieving conflict errors like below in Zope logs. We have ZEO implemented with 2 Zope servers accessing the storage and even then its not minimizing . Could anyone suggest whats happening here that cause this error. Is my Apache configuration also needs to be looked for to fix this OR its an inherent ZOPE bug ------------------------------------------------------------------------------------------------------------ Exception Type ConflictError Exception Value database conflict error (oid 0x09, class Products.Transience.Transience.Increaser, serial this txn started with 0x036f460d13550f66 2007-07-27 17:17:04.531000, serial currently committed 0x036f460e67cca9dd 2007-07-27 17:18:24.328000) --------------------------------------------------------------------------------------------------------------- SuSon

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Inconsistency in the SVN repository with download package (Zope 2.9.8)?
by donat.hutter＠bluemail.ch 29 Jul '07

29 Jul '07

This refers to ZOPE 2.9.8 When I did an analysis with "fsrefs.py" of a Plone database (Data. fs) I got a lot of "missing" messages. I crosschecked the file "fsrefs.py" of the downloaded ZOPE package with the SVN repository. I recognized, that the file from ZODB/tags/3. 6.3/src/scripts commented as "tagged for Zope 2.9.8" (this works perfect, see change history below) is not identical with the on in the download package. I didn't check any other files. > Zope: ZODB/tags/3.6.3/src/scripts/fsrefs.py > _____ > Revision 77338 - (Modified Tue Jul 3 13:32:55 2007 UTC (3 weeks ago) by andreasjung > File length: 5885 byte(s) > 3.6.3 (tagged for Zope 2.9.8) > _____ > Filename: ZODB/branches/3.6/src/scripts/fsrefs.py > Revision 69277 - (Modified Thu Jul 27 21:55:20 2006 UTC (11 months, 3 weeks ago) by tseaver > File length: 5885 byte(s) > fsrefs.py was reporting spurious 'missing' classes. > > It seems that for the download package the file from "ZODB/trunk/src/ZODB/scripts" is taken ??? regards, Donat

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TOC ondelete event
by jbusato＠libero.it 28 Jul '07

28 Jul '07

Hi, I'm setting up a Session data Manager with a Transient Object Container that call a python script session_delete(sdo,toc). I want to show a message like ("your session was terminated due inactivity") so I tried to write this #PYTHON SCRIPT (NOT EXTERNAL) session_delete(sdo,toc) request = container.REQUEST RESPONSE = request.RESPONSE RESPONSE.redirect(container.mywarningpage.absolute_url()) Launched manually it gives me no errors but when the session is terminated only "onadd" script make effects. Are there not permitted operations in this case? Could anyone explain me where I mistake or another way to do tha same thing? (AFAIK sdo parameter is the old session so I can't store any info in it) Thank you so much Jary Busato ------------------------------------------------------ Scegli infostrada: ADSL gratis per tutta lestate e telefoni senza canone Telecom http://click.libero.it/infostrada

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acquisition failure puuzzle or maybe something else
by Dennis Allison 27 Jul '07

27 Jul '07

Zope 2.9.X Python 2.4 Centos 4.4 Linux Firefox 2.0.0.5 (Linux and Win XP) I have a dtml method is a folder C and a folder setup / A B C scripts In the dtml method, there is a call to a script passing in a composed string made up of variables passed in through request inside of a dtml-let, <dtml-let someval="scripts.cleanfilename(cgivar1+'_'+cgivar2)" > --- methods that use someval --- </dtml-let> a pattern we have used in many places without a problem. In this particular case, Zope throws an error Traceback (most recent call last): File "/usr/local/src/zope/Zope2.9/lib/python/ZPublisher/Publish.py", line 115, in publish request, bind=1) File "/usr/local/src/zope/Zope2.9/lib/python/ZPublisher/mapply.py", line 88, in mapply if debug is not None: return debug(object,args,context) File "/usr/local/src/zope/Zope2.9/lib/python/ZPublisher/Publish.py", line 41, in call_object result=apply(object,args) # Type s<cr> to step into published object. File "/usr/local/src/zope/Zope2.9/lib/python/OFS/DTMLMethod.py", line 144, in __call__ r=apply(HTML.__call__, (self, client, REQUEST), kw) File "/usr/local/src/zope/Zope2.9/lib/python/DocumentTemplate/DT_String.py", line 476, in __call__ try: result = render_blocks(self._v_blocks, md) File "/usr/local/src/zope/Zope2.9/lib/python/DocumentTemplate/DT_In.py", line 630, in renderwob if self.elses: return render_blocks(self.elses, md) File "/usr/local/src/zope/Zope2.9/lib/python/DocumentTemplate/DT_In.py", line 703, in renderwob try: append(render(section, md)) File "/usr/local/src/zope/Zope2.9/lib/python/DocumentTemplate/DT_Let.py", line 75, in render else: d[name]=expr(md) File "/usr/local/src/zope/Zope2.9/lib/python/DocumentTemplate/DT_Util.py", line 196, in eval return eval(code, d) File "<string>", line 1, in <expression> AttributeError: cleanfilename The failing line is (literally) <dtml-let sname="scripts.cleanfilename(user_lastname+'_'+user_firstname)" which is part of a <dtml-let> with several components. Now, the failing element is part of a method that fundamentally has a if-elif structure and the actual code fragment is embedded in a pair of nested <dtml-in> blocks which have internal <try>-<except>-<else> blocks, but that is all control structure and should not impact name/attribute resolution, or so I believe. A trace through the executing method shows the control flow is functioning as expected. Security settings appear to be correct--and the correct execution of simple test methods (see below) tend to support that conclusion. Moving the script into the same folder as the method (that is, moving it from the folder scripts to the folder C in the layout above) is a workaround, but it breaks our coding conventions. i Simple test methods in folder C <dtml-var standard_html_header> <dtml-let sss="scripts.cleanfilename('able baker charlie ')"> <dtml-var sss> </dtml-let> <dtml-var standard_html_footer> work fine and do not throw the attribute error. I suspect that this is a problem caused by some trivial error, but we've been unable to find it. Any help/suggestions as to how to resolve this puzzle would be appreciated.

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Extracting all files from Zope DB
by Nokin Jérôme 26 Jul '07

26 Jul '07

Hello, In order to migrate from Zope to "..." (I don't know yet), we are trying to extract all the information located inside the Zope database. I've found the FTP interface to the Zope database, I can browse inside the subfolder but, I can see any files !? If I post a new file via the web page, a folder is created (I see it via FTP) but the folder is empty ?! Could you please tell me if there is a way to do that ? Could you please give me some hints ? Thank you very much ! Jerome Nokin

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ZCatalog indexes and unit testing
by Eric Bréhault 26 Jul '07

26 Jul '07

Hello, I have created a ZCatalog object where I declare the following index: self.addIndex('featureType','FieldIndex') which works fine in my application But when I run it in my unit tests, I get the following error: self.addIndex('featureType','FieldIndex') File "/opt/Plone3/lib/python/Products/ZCatalog/ZCatalog.py", line 971, in addIndex raise ValueError, "Index of type %s not found" % type ValueError: Index of type FieldIndex not found I am using the unitest package, I have declare a lot of stuff in configurationSetUp, but something is probably missing: (is there something to import from PluginIndexes ?) import unittest from zope.component.testing import setUp, tearDown from zope.configuration.xmlconfig import XMLConfig from zope.testing import doctest from zope.testing.doctestunit import DocFileSuite def configurationSetUp(self): setUp() import Products.zgeo import zope.component import zope.annotation import zope.app.publisher.browser import Products.Five import Products.Archetypes import Products.CMFCore import Products.GenericSetup XMLConfig('meta.zcml', zope.component)() XMLConfig('meta.zcml', zope.app.publisher.browser)() XMLConfig('meta.zcml', Products.Five)() XMLConfig('meta.zcml', Products.GenericSetup)() XMLConfig('meta.zcml', Products.CMFCore)() XMLConfig('configure.zcml', zope.annotation)() XMLConfig('configure.zcml', Products.Five)() XMLConfig('configure.zcml', Products.GenericSetup)() XMLConfig('configure.zcml', Products.Archetypes)() XMLConfig('configure.zcml', Products.zgeo)() Thanks, Eric

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ANN: eGenix EuroPython 2007 Presentations & Videos
by eGenix Team: M.-A. Lemburg 26 Jul '07

26 Jul '07

________________________________________________________________________ eGenix EuroPython 2007 Presentations & Videos ________________________________________________________________________ eGenix is pleased to announce the immediate availability of PDF and Flash video versions of the presentations we gave at this years EuroPython 2007 conference in Vilnius. This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/EuroPython-2007-Presentations.html ________________________________________________________________________ INTRODUCTION The EuroPython Conference is the one of the premier conferences for Python & Zope users and developers. This year it was being held from the 9th to 11th July in Vilnius, Lithuania. eGenix was one of the founding members of the EuroPython conference team and played a major role in organizing the first EuroPython conference in the year 2002. Since then we have attended every EuroPython conference to meet up face-to-face with the people from the Python & Zope communities and have given regular talks at these conferences. ________________________________________________________________________ TALKS AT EUROPYTHON 2007 We gave the following two talks at the conference. The presentations are available for viewing and download from our Presentations and Talks section: http://www.egenix.com/library/presentations/ As special feature, we have added talk videos in addition to providing the slide PDFs. You can view the talks online if you have the Adobe Flash Player 8 or later installed. * Parsing Languages with mxTextTools mxTextTools comes with a high performance Tagging Engine for text and Unicode data which can be used to tokenize and parse languages. The resulting abstract syntax tree can then be hooked up to a generator to build a complete and fast compiler in pure Python. The talk gives a short introduction to the way the mxTextTools Tagging Engine works and how it can be used to build compilers. mxTextTools is an eGenix Open Source product available as part of the eGenix mx Base Distribution. * An introduction to working with relational databases from Zope Although Zope has been around for quite a while, it continues to find new users particularly amongst non-programmers who are looking for a way to work with existing data which is usually in some relational database (PostgreSQL, MySQL, MS SQL, Oracle, DB2, etc.). One of the reasons for this is that Zope provides an extremely powerful, yet secure, through-the-web programming environment. The presentation is directed towards new users and will provide a brief introduction by example into the Zope way of doing things. At the same time it highlights how working within Zope is automatic training in good programming methodology: data management is delegated to ZSQL methods, PythonScripts act as controllers and Zope Page Templates provide the views. Together they encourage modularity and reusability. The sample application and database are available for download. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jul 26 2007) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ :::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611

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Unit Testing DTML and ZPT
by Chris Gray 26 Jul '07

26 Jul '07

Is there any standard way of unit testing the two page templating methods in Zope 2? Chris

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Telling Psycopgda2 to return unicode strings
by Andreas Elvers 26 Jul '07

26 Jul '07

Hi, I don't know if this is common knowledge, but I couldn't find anything about it on the web. So I hacked it myself. When querying a Postgresql database using unicode in Zope 2.10 via ZPsycopgda2, the adapter will return unicode data in plain strings. To force unicode strings to be returned go to your Products folder and create a directory like ZPsycopgda2SetUnicode. In this directory put an __init__.py file containing this code: import psycopg2 import psycopg2.extensions psycopg2.extensions.register_type(psycopg2.extensions.UNICODE) After this restart Zope. ZPsycopgda2 should now return unicode strings. - Andreas

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Question about AdvancedQuery
by julian 26 Jul '07

26 Jul '07

Hi, I want use a query like : query['getPresta_chambres'] = { 'query': ["15"], 'range': 'min' } But with AdvancedQuery I don't see how make it : --------------------------------------------------------------------- query = And(Eq('portal_type', 'Meubles')) query = query & Eq('review_state', 'published') # This query don't run : query = query & Eq('getPresta_chambres', { 'query': ["15"],'range': 'min' }) --------------------------------------------------------------------- Could you help me :p ? Julian

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