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Re: Zope 3 Developer's Handbook
by Philipp von Weitershausen 03 Feb '05

03 Feb '05

Sorry for the flooding, it seemed that GMane rejected my messages because my computer clock was set month ahead (no idea why) while in fact the messages were posted. Philipp.

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what does (2014, "Commands out of sync; You can't run this command now") mean??
by robert 03 Feb '05

03 Feb '05

Hi there, we are using a MySQLdb adapter, and get sometimes a (2014, "Commands out of sync; You can't run this command now") error. Most of the time things are working fine. But up a sudden we get a traceback like the following: Thanks for any hints Robert Traceback (innermost last): Module ZPublisher.Publish, line 101, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Products.CMFCore.FSPythonScript, line 104, in __call__ Module Shared.DC.Scripts.Bindings, line 306, in __call__ Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec Module Products.CMFCore.FSPythonScript, line 160, in _exec Module None, line 2, in zr_edit_setFieldValues - <FSPythonScript at /intranet/zehnder/zr_edit_setFieldValues used for /intranet/zehnder/servicetickets/ticket.2005-01-28.8948828769> - Line 2 Module Products.CMFCore.CMFCatalogAware, line 69, in reindexObject Module Products.RedNotify.RedNotifyCatalogTool, line 135, in reindexObject Module Products.CMFCore.CatalogTool, line 262, in reindexObject Module Products.CMFCore.CatalogTool, line 235, in catalog_object Module Products.ZCatalog.ZCatalog, line 528, in catalog_object Module Products.ZCatalog.Catalog, line 381, in catalogObject Module Products.PluginIndexes.TextIndex.TextIndex, line 287, in index_object Module Products.ZehnderRequest.ZehnderRequest.ZehnderTicketBase, line 60, in SearchableText Module Products.ZehnderRequest.ZehnderRequest.ZehnderDb, line 1135, in getAllDbTextForTicket Module Products.ZehnderRequest.ZehnderRequest.ZehnderDb, line 239, in sql_query_first Module MySQLdb.cursors, line 95, in execute Module MySQLdb.cursors, line 114, in _execute Module MySQLdb.connections, line 33, in defaulterrorhandler ProgrammingError: (2014, "Commands out of sync; You can't run this command now")

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Re: [Zope3-dev] Zope 3 Developer's Handbook
by hpinson＠indepthl.com 03 Feb '05

03 Feb '05

Three cheers for Stephan. I just can't think of a higher priority, beyond building the software, than documenting it. Harlow Pinson Indepth Learning Email: hpinson(a)indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678

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RE: [Zope] Re: when can a product be refreshed?
by Hayles, S. 03 Feb '05

03 Feb '05

I would imagine you'd have to look in the Product initialisation code to see if it does anything that would cause a different outcome if repeated on the same ZOPE process. Steven > -----Original Message----- > From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of > martin f krafft > Sent: 03 February 2005 08:41 > To: zope users > Subject: [Zope] Re: when can a product be refreshed? > > > also sprach Chris Withers <chris(a)simplistix.co.uk> > [2005.02.03.0917 +0100]: > > Lots of complex things that can't be easily summed up ;-) > > Now say I really wanted to know, where would I look? > > -- > martin; (greetings from the heart of the sun.) > \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck > > invalid/expired pgp subkeys? use subkeys.pgp.net as keyserver! > spamtraps: madduck.bogus(a)madduck.net > > the only difference between a car salesman and a computer salesman > is that the car salesman knows he's lying. >

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Authorization problem with python module
by Etienne Desgagné 03 Feb '05

03 Feb '05

Hi Everyone, I have a security problem with a python script in Zope (2.7.0). I try to import a not very common python module to use some of is method in my script. In the _init_.py of the product that use this module, I have checked if "allow_module" and "allow_class" is correctly set ans all seems to be ok. The problem is when I use one of the method of a class of that module in my script, a message box appear asking for my login and password and if I write my user name and password (manager) it doesn't work. I receive message like: you have not the authorization to access this method in that context... Someone have an idea of what I'm doing wrong? Is there a way to bypass this security check? Thanks a lot Etienne

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Re: [Zope] Global variables in ExternalMethod modules
by Dave Cinege 02 Feb '05

02 Feb '05

You might want to do something like what's below and call GetDBC() upon every EM entry. It will reuse the current connection if it's present, otherwise it opens a new one. kisSQL is my own module that wraps around mysql. What drove me crazy for a bit and resulted in tons of hung db conenctions was I stupidly a forgot to put a delete method in my kisSQL class. ( def __del__(self):) to actually close the connections, as CloseDBC() would not always get called. ------------------- def GetDBC (): import kisSQL global sql if 'sql' not in globals(): sql = kisSQL.kisSQL(db=dbname,user=dbuser,passwd=dbpass) def CloseDBC (): global sql if 'sql' in globals(): del(sql)

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How to POST java serialized object to a zope(python) script?
by Gary G Zhu 02 Feb '05

02 Feb '05

Hello, I am trying to find a way to pass data from a java applet into zope. Don't know how to get the serialized object into the zope python script. With html forms I'd just use container.REQUEST, but it doesn't work in this case. Any help is appreciated. Thanks, -- Gary Zhu

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errata & bug day (Re: Zwiki 0.38 released, news roundup)
by Simon Michael 02 Feb '05

02 Feb '05

Errata: > doing its job. It's the first zwiki installation which allows switching > between the standard and plone zwiki skins (alt -, alt +). The version running there will give an error if you try this without logging in first. > http://page.axiom-developer.org/zope/mathaction/ is another interesting Bill Page runs this site. And, I want to propose and invite you to a Zwiki Bug Day on #zwiki, on the first friday of each month. The next will be this friday february 4th. Start the month with a healthy round of bugfixing - learn about the fun darcs revision control system - get insight into Zwiki's internals - sucker others into solving that issue that's been bugging you - come one, come all. Best wishes -Simon

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Cache values may only be in one cache
by martin f krafft 02 Feb '05

02 Feb '05

Hi folks, I am experiencing weird, sporadic errors while using and developing a Plone 2.0.5 site: ValueError: Cache values may only be in one cache. * Module ZPublisher.Publish, line 107, in publish * Module Zope.App.startup, line 222, in commit * Module ZODB.Transaction, line 241, in commit * Module ZODB.Transaction, line 356, in * _commit_objects * Module ZODB.Connection, line 459, in commit __traceback_info__: (('BTrees.OOBTree', 'OOBTree'), '\x00\x00\x00\x00\x00\x00\x00L', '') What is going on, and how can I prevent these errors? Thanks, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck invalid/expired pgp subkeys? use subkeys.pgp.net as keyserver! spamtraps: madduck.bogus(a)madduck.net "i have smoked pot. it is a stupid business, like masturbation." -- thomas pynchon

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Global variables in ExternalMethod modules
by Ben Last (Zope) 02 Feb '05

02 Feb '05

Dear Zopistas I'm trying to work out what the rules are for global (that is, module-level) variables in a module that contains external methods. The scenario: we have a single module (.py file) in the Extensions subdirectory of the instance directory, which contains all our external methods plus many helper methods. Amongst other things, this module contains a lot of methods that perform database queries to an associated MySQL database. The same module is also used by non-Zope Python tasks, so the queries are all direct, not via Zope SQL products. As part of the ongoing optimization of the code, I've been looking at having a single MySQLdb connection per Zope thread, and re-using this for all SQL queries. My understanding was that if I declare a connection variable at module level, like so: databaseConnection = None I could then initialize it in a method that's called at the start of handling every request, but re-use the value between requests. However, it *appears* that the value of the databaseConnection variable is (nearly) always None when any new request starts, as though the module were being reloaded afresh for every one. Thus there seems to be no way to keep per-thread module-level variables. This is on our test platform, where the Zope instance is running in debug-mode. We've also noticed an odd connection leak on our production server, where Zope is not running in debug-mode. It *appears* as though the __del__ methods of MySQLdb.Connection objects are not being called (and thus the connections are remaining open indefinitely). We've recently started wrapping Connection objects in a class of our own, and tracing __init__ and __del__ calls for that also appears to bear out that theory. All this on Zope 2.7.3, Python 2.3.4, Linux. So; is there a quick-n-easy summary of how module-level variables behave in ExtensionMethod modules? Is there any reason that, in a non-debug environment, the __del__ methods of simple Python objects may not be called? Regards to all Ben Last

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