April 2006 - Zope - Zope lists

DTML-In with filter
by Martin Koekenberg 04 May '06

04 May '06

Hello, Is it possible to use a DTML-In to display all DTML Documents in a folder exept the one's with a centain value in a property ? Example. DTML Document one with property a=bc DTML Document two with property a=de DTML Document three with property a=bc Now I want to use DTML-IN to display all the dtml documents except the ones with property a=de. I also use the size and batchsize property to create links to the next 10 documents..... If I use an if statement the next 10 can be 9 ore less 9 items because there could be one ore more documents with a=de. Who can help me ? regards, Martin Koekenberg

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Windows Server 2003, II6 and ASP404 vs form posts
by Steve McMahon 01 May '06

01 May '06

Anyone out there using Zope inside IIS 6 on Server 2003 via the ASP404 technique? I've done this successfully on Windows 200 and XP, but on Server 2003, IIS does not seem to be passing the post data to the error handler. When Win2003 was young, there was some list traffic on a similar problem, and Brian Sullivan figured out that IIS was reporting a REQUEST_METHOD of "GET" even for POST requests. However, the POST data was still passing, so it was possible to check Request.totalBytes (this is the ASP Request, not Zope's) to determine the real nature of the request. Now, though, many an IIS patch later, IIS is invoking the error handler with http content length set to zero (even though it reports that content type is www-urlencoded). So, form submissions do nothing. And, if there's nothing to be done about this, does anyone know if the Fresh Logic or Enfold ISAPI solutions have any way to intermix serving of IIS and Zope content? If I didn't have to do that, I'd be using Apache, and be done by now ;) . Thanks!

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Missing content! Urgent
by Michael Havard 01 May '06

01 May '06

We're missing 16 days worth of content. Python 2.3.5, Zope 2.8.4, Plone 2.1.2, and a host of other products. ZEO configuration. Persistent disk caching is on. Yesterday everything was fine. All the content was there and accessible. Today I try to log in and the server doesn't respond. I go out and restart the zope client, still no response. I restart the zeo server and the site delivers content. Problem! The content is from two weeks ago. All of the content from the last 16 days is missing. Thinking maybe someone restored from an older backup I went out to our daily backups and pulled the previous days data.fs backup. A restore didn't work. It still shows the outdated content. I went out to look at the backups again and noticed that the date on the data.fs was 4/14 while the date on data.fs.tmp was 4/26. data.fs.tmp is a 9 meg file. Is the missing content somehow captured in data.fs.tmp or is it somewhere else that I can retrieve it? If it is how do I get it back?

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zope 2.8.5 becomes unresponsive.
by Erik Myllymaki 29 Apr '06

29 Apr '06

Environment is RHEL 3, Zope v2.8.5 (Python 2.3.5). Every couple of days the zope instance will become unresponsive and require a restart. ZMI is inaccessible at these times so I have to do run "service my_zope_service restart" in the usual redhat way. There is nothing in the logs, and if I do "service y_zope_service status" I am told "program running; pid=22671" This is a service under very light load. I viewed the chanelog for v2.8.6 and didn't see any changes that address this, and for various reasons I do not want to move into the v2.9.x builds. Any guidance appreciated.

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ImportError: No module named CMFActionIcons:1.5
by Sebastian Tennant 29 Apr '06

29 Apr '06

Hi all, I've just apt-installed zope2.8.6 and CMF1.5 on Debian Sarge courtesy of backports.org: zope-cmf1.5 zope-cmfactionicons1.5 zope-cmfcalendar1.5 zope-cmfcore1.5 zope-cmfdefault1.5 zope-cmfsetup1.5 zope-cmftopic1.5 zope-cmfuid1.5 zope-dcworkflow1.5 I believe Debian does things slightly different so here's where everything lives: Zope home: /usr/lib/zope2.8 Zope software home: /usr/lib/zope2.8/lib/python/ Instance directory: /var/lib/zope2.8/instance CMF packages: /usr/share/zope/Products I've created an instance and added a 'products /usr/share/zope/Products' directive in that instance's zope.conf but CMF is not being imported on start up, and I'm getting the following event log message for each of the CMF packages mentioned above: 2006-04-29T12:36:05 ERROR Zope Could not import Products.CMFActionIcons:1.5 Traceback (most recent call last): File "/usr/lib/zope2.8/lib/python/OFS/Application.py", line 698, in import_product product=__import__(pname, global_dict, global_dict, silly) ImportError: No module named CMFActionIcons:1.5 Any help much appreciated. sdt

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InterfaceError: already closed
by Jeff Gentry 29 Apr '06

29 Apr '06

I have a Product which uses ZPsycoPG (and thus psycopg), currently running on 3 systems. On two of them I never see this, but on the third I get intermittent errors of the nature: "Interface Error: already closed". These errors strike pretty much from any area that access the DB, and "solving" the issue seems as simple as hitting the back button and trying again (and I'm currently using the standard_error_message to fire these back to a more user friendly page explaining this). It would be nice to make these simply go away though :) I've seen a few references here and there that such errors might be related to firewalls/proxying, and the affected host definitely is in such an environment, but I don't know that I buy that this is what is going on. Is anyone familiar with this problem, and if so, any ideas as to where to look? Thanks -J

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[ANN] TextIndexNG 3.1.9 released
by Andreas Jung 29 Apr '06

29 Apr '06

I am pleased to announce the release of TextIndexNG V 3.1.9. TextIndexNG V 3 is a complete new implementation based on Zope 3 technologies and can be used both in Zope 2.8 or in Zope 3. What's new? - multi-field indexing and query support - multi-lingual support - configurable converters (through ZCML) - new indexing API (allowing you to hook your custom content types with TextIndexNG through Zope 3 adapters). Changes in V 3.1.9: - added explicit check for the existence of the extension module so TextIndexNG3 will now fail at startup time with an exception instead of failing when creating new index instances - added UI support for valid word separators - added IObjectWrapper interface to core indexer engine to provide generic support for objects wrapped into some kind of wrapper. The purpose of the interface is to attach IObjectWrapper to wrapper classes using five:implements without having the need to modify exisiting code. - added support to deal better with indexing CMF content where the content object is wrapped inside a CMFCore.CatalogTool.IndexableObjectWrapper instance. TextIndexNG3/adapters/configure.zcml contains some commented configurations to attach a marker interface to IndexableObjectWrapper and in an addition an adapter to extract the wrapped object without having the need to add some CMF knowledge to the core indexing engine - added IExtensibleIndexableObjectWrapper for better integration with Plone (whose CatalogTool wraps Plone objects as ExtensibleIndexableObjectWrapper instances) - optimized internal datastructures (existing indexes should be cleared and reindexed) Requirements: - Zope 2.8+, Zope 3.2+ Download: http://sf.net/projects/textindexng Project page: http://opensource.zopyx.biz/OpenSource/TextIndexNG3 For installation and documentation issues refer to doc/README.txt from the archive. It's basically the same procedure as with former versions except you *need* to recompile the extension modules. Windows binaries of the required extension modules are currently not available (any volunteers?). TextIndexNG V 3 is published under the ZPL. Andreas Jung ----------------------------------------------------------------------- - Andreas Jung ZOPYX Ltd. & Co KG - - E-mail: info(a)zopyx.com Web: www.zopyx.com, www.zopyx.de - -----------------------------------------------------------------------

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Defining constants for an Interface in a Zope2 product.
by Marco Bizzarri 28 Apr '06

28 Apr '06

Hi all. I would like to be able to define an interface which specifies both methods and constants, something like this: class IMyTest(Interface): A = Constant(1) B = Constant(2) C = Constant(3) def aMethod(self, a_value): """ something """ A, B and C could be any meaningful constant for this interface, like possible return values for the aMethod. Then I could possibly test any class using and object which implements this simply by testing it against the IMyTest and if the return values are IMyTest.A, IMyTest.B, IMyTest.C. Is this possible in some way? Regards Marco -- Marco Bizzarri http://notenotturne.blogspot.com/

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pointers in zope (newbie question)
by thomas desvenain 27 Apr '06

27 Apr '06

hello, i need to have the same object at different places, more properly, i need to refer an object at different places, in different folders, of my zope application (i use formulator, and i would like that when i modify properties of the "same" field in different forms, all the others are updated) is it possible ? thanks thomas

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coercing to Unicode: need string or buffer, NoneType found
by Dennis Allison 27 Apr '06

27 Apr '06

Zoe 2.9.0, Python 2.4.2 ## Script (Python) "ascript" ##bind container=container ##bind context=context ##bind namespace= ##bind script=script ##bind subpath=traverse_subpath ##parameters= ##title= ## root = container.restrictedTraverse('/') objs = root.ZopeFind(container.this(), obj_metatypes=['External Method'], search_sub=1) for path, method in objs: method.reloadIfChanged() print method.title, path return printed ERROR: Exception Type TypeError Exception Value coercing to Unicode: need string or buffer, NoneType found Traceback (innermost last): * Module ZPublisher.Publish, line 113, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 40, in call_object * Module Shared.DC.Scripts.Bindings, line 311, in __call__ * Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec * Module Products.PythonScripts.PythonScript, line 323, in _exec * Module None, line 4, in ascript <PythonScript at /draPlay/ascript> Line 4 * Module Products.ExternalMethod.ExternalMethod, line 154, in reloadIfChanged TypeError: coercing to Unicode: need string or buffer, NoneType found >From ExternalMethod.py: 152: def reloadIfChanged(self): # If the file has been modified since last loaded, force a reload. ==> ts=os.stat(self.filepath())[stat.ST_MTIME] if (not hasattr(self, '_v_last_read') or (ts != self._v_last_read)): self._v_f=self.getFunction(1) self._v_last_read=ts Any idea what is causing this error. Looks to me to be a Python Bug. A bit of Googling shows this error showing up in a number of different contexts. Any suggestions for a workaround?

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