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ZMYSQLDA 2.0.9 lock problem
by Dennis Allison 21 Jun '05

21 Jun '05

IE, Zope 2.7.6, Python 2.4.1, MYSQLDA 2.0.9 One of our developers is reporting a curious problem, which I have not been able to track down. It appears to be threading related, somewhere in the ZBMYSQLDB adaptor. The database connection string is bare of transaction indicators. The database is local. All tables are MyISAM which is non-transactioal. Unfortunately the user does not remember the exact sequence of events which generate the problem so I am unable to duplicate. What we do know is that the problem occurs at the beginning of a development session begun with a cold boot of the client machine and a fresh browser and it occurs once and only onece during the development session. The developer normally has two active Zope threads going--one working with the application and one working with the ZMI. He moves between them using the Open/View tab and other buttons. He reports that the first time he moves focus from the ZMI to the application, he gets the following error: ------------------------------------------------------------------- Time 2005/06/20 07:12:03.478 GMT-7 User Name (User Id) XXXX (XXXXX) Request URL http://xxx.xxxxxxxx.com/logged_in Exception Type error Exception Value release unlocked lock Traceback (innermost last): * Module ZPublisher.Publish, line 107, in publish * Module Zope.App.startup, line 222, in commit * Module ZODB.Transaction, line 260, in commit * Module ZODB.Transaction, line 377, in _finish_many * Module Shared.DC.ZRDB.TM, line 59, in tpc_finish * Module Products.ZMySQLDA.db, line 376, in _finish error: release unlocked lock -------------------------------------------------------------------- The lock being released is a transactional lock. None of our locks should be transactional locks, given our setup. I traced through the __init__() method for DB and did not see how transactional locking could be specified so the lock relaease code could run--I must be missing something. No thread in our system uses transactional locking as the tables do no support transactions. The logged_in method references the MySQL database in several places; a couple of them are compound queries where multiple queries are joined by "<dtml-var mysql_delimiter>" values. Many of our queries use this in combination with the "use <database name>" SQL query. The system is using ZODB filestorage (Data.fs) with ZEO and is pretty much out of the box. Has anyone else encountrered a similar problem. Any suggestions as to how to find this bug?

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Zope Foundation ideas
by Rob Page 20 Jun '05

20 Jun '05

In preparation for tomorrow's IRC session (reminder/details below) we have prepared some initial ideas about the Zope Foundation. These are available online at: o http://tinyurl.com/74pd3 Note -- the document is written with phrases like "the Foundation will", "Contributors shall", etc. This is NOT to be interpreted as though these terms/conditions are predetermined. It is written to close in on specific language that avoids misinterpretation. Zope Foundation IRC Session --------------------------- IRC Session Summary: - Who: Zope Corp and Zope Community - What: IRC session to discuss the Zope Foundation - When: Tue, 21 Jun 2005 10a - 12p (US EDT) - Where: irc.freenode.net #zope Please send specific questions to: mailto:irc_agenda_topics@zope.com Hope to see you there. Regards, Rob -- Rob Page V: 540.361.1710 Zope Corporation F: 703.995.0412

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developing with zmi: how to move a patch from data from devel to live?
by gabor 20 Jun '05

20 Jun '05

hi, my problem is the following... imagine that you develop something for the customer using zope. while developing you use the ZMI a lot... to set some settings, to create python scripts and so on. you do this on the 'devel' server. then you deliver the solution to the customer (to the 'live' server). you can simply copy the data.fs stuff to the live server. after some time the either customer wants some new features, or there's a bug to fix or something like that. now you create the fix/improvement on the devel server. but now how do you move the improvement/fix to the live server? you cannot just copy the data.fs over. the customer already has some content/data in it... one way seems to be to not use the ZMI at all. you create an install python script, which calls the methods of the ZMI interface. this way works, but it seems for me to waste my time. finding the right method that the gui calls to call it from the install script seems stupid for me. but it solves the problem. with the script i can really make the changes i need on the devel server. so, is there a solution where i can use the ZMI? how do you solve this kind of problem? gabor

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Re: [Zope] Getting information about current method
by Jan-Ole Esleben 20 Jun '05

20 Jun '05

No, I'm sorry; I only get system paths. Ole 2005/6/17, Peter Bengtsson <peterbe(a)gmail.com>: > On 6/17/05, Jan-Ole Esleben <esleben(a)gmail.com> wrote: > > Unforunately, this just gives me the pythonic path to the method; what > > I need for a TALES expression is the ZOPE path - i.e. what I get from > > the stack frame is > > ... E:\zope\Extensions\req.py ... > > but what I need is > > ... http://localhost:8080/ReqTest ... > > > > Ok, maybe inspect.stack()[1] was the wrong one. Can't remember nor > test it for you but try any of the others in that list. Eg. > inspect.stack()[0] or inspect.stack()[2] > > You can maybe find something by going through REQUEST.PARENTS > > > > Ole > > > > > > 2005/6/17, Peter Bengtsson <peterbe(a)gmail.com>: > > > Then, in your External method, try:: > > > > > > import inspect > > > print inspect.stack()[1] > > > > > > > > > On 6/17/05, Jan-Ole Esleben <esleben(a)gmail.com> wrote: > > > > I want to know the name (and path) of the _External Method_ from > > > > inside it. What I _can_ get is the name of the DTML method. > > > > > > > > I want to build generic scaffolding code for functions that > > > > conditionally redispatch as asynchronous calls (via ZASync); that > > > > part, however, isn't a problem at all - everything works fine as long > > > > as I use an HTTP request directly and redispatch with information from > > > > the REQUEST. The problem is that I need a TALES expression to call the > > > > function again (asynchronously this time), and for that I need the > > > > ZOPE path to it. > > > > > > > > Ole > > > > > > > > 2005/6/17, Peter Bengtsson <peterbe(a)gmail.com>: > > > > > > is there a generic way to find out from Python code which method has > > > > > > been called (in other words: find out where the current method is > > > > > > located in the ZOPE hierarchy and what its name is)? If I call an > > > > > > External Method via a DTML method, of course the REQUEST object > > > > > > contains the path to the DTML method because the External Method > > > > > > hasn't been called via HTTP. I haven't been able to figure out any > > > > > > other way of getting this information. > > > > > > > > > > > I don't get it. Do you want to know the name of the DTML method from > > > > > inside the External method? > > > > > Perhaps I'll be able to help if you tell us more about the intention > > > > > of this code. > > > > > > > > > > > Thanks in advance, > > > > > > Ole > > > > > > _______________________________________________ > > > > > > Zope maillist - Zope(a)zope.org > > > > > > http://mail.zope.org/mailman/listinfo/zope > > > > > > ** No cross posts or HTML encoding! ** > > > > > > (Related lists - > > > > > > http://mail.zope.org/mailman/listinfo/zope-announce > > > > > > http://mail.zope.org/mailman/listinfo/zope-dev ) > > > > > > > > > > > > > > > > -- > > > > > Peter Bengtsson, > > > > > work www.fry-it.com > > > > > home www.peterbe.com > > > > > hobby www.issuetrackerproduct.com > > > > > > > > > _______________________________________________ > > > > Zope maillist - Zope(a)zope.org > > > > http://mail.zope.org/mailman/listinfo/zope > > > > ** No cross posts or HTML encoding! ** > > > > (Related lists - > > > > http://mail.zope.org/mailman/listinfo/zope-announce > > > > http://mail.zope.org/mailman/listinfo/zope-dev ) > > > > > > > > > > -- > > > Peter Bengtsson, > > > work www.fry-it.com > > > home www.peterbe.com > > > hobby www.issuetrackerproduct.com > > > > > _______________________________________________ > > Zope maillist - Zope(a)zope.org > > http://mail.zope.org/mailman/listinfo/zope > > ** No cross posts or HTML encoding! ** > > (Related lists - > > http://mail.zope.org/mailman/listinfo/zope-announce > > http://mail.zope.org/mailman/listinfo/zope-dev ) > > > > -- > Peter Bengtsson, > work www.fry-it.com > home www.peterbe.com > hobby www.issuetrackerproduct.com >

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RE: [Zope] custom_persist_obj
by Pascal Peregrina 20 Jun '05

20 Jun '05

You have a built-in Zope object for this : PersistentMapping. dict1=PersistentMapping({'a':1,'b':1,'c':1, ...}) dict1=PersistentMapping({'a':2,'d':4,'e':6}) The only thing you can not do compared to dictionaries is : for key in dict1: do something (you need to use for key in dict1.keys():...) Pascal -----Message d'origine----- De : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]De la part de Tamas Hegedus Envoyé : lundi 20 juin 2005 11:12 À : zope(a)zope.org Objet : [Zope] custom_persist_obj Hi, I am new to Zope and not a programmer. It is a little bit complex for me. I am very frustrated, as I can not find the solution for a pretty simple task: I would like to have persistent object with dictionaries. I think I do not need a ZClass or Product, just a simple object for holding mutable and persistent dictionaries (Manipulating with Script). Like MyObject: dict1 = [ a:1, b:1, c:1, ...] dict2 = [ a:2, d:4, e:6] etc. Thanks for your help in advance, Tamas _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

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where is the appendix in the online book
by Michael Rosenberg 20 Jun '05

20 Jun '05

i was searching for the same thing today, and i found it at: http://plone-book.agmweb.ca/ you have to chexk out each chapters errata, from there you have links to each chapters relavant scripts and links. a little tricky, huh ? hope to have been of some help, michi

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Graphical front end for Zope?
by John Poltorak 20 Jun '05

20 Jun '05

I don't suppose there is such a thing as a graphical front end for building Zope sites... I've just been trying out a Flash based product called SiteMaker http://www.moonfruit.com/ which made designing web pages a doddle. Just wish there was something which would simplify the building of a Zope site. -- John

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Passing parameters using DTML
by John Poltorak 20 Jun '05

20 Jun '05

Can someone provide an example of passing parameters using DTML? I'm sure this must be doable, but don't see an example in the Zope Book. I assume it would go something like <dtml-var var1 parm1 parm2> but how would var1 pick up parm1 parm2? -- John

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custom_persist_obj
by Tamas Hegedus 20 Jun '05

20 Jun '05

Hi, I am new to Zope and not a programmer. It is a little bit complex for me. I am very frustrated, as I can not find the solution for a pretty simple task: I would like to have persistent object with dictionaries. I think I do not need a ZClass or Product, just a simple object for holding mutable and persistent dictionaries (Manipulating with Script). Like MyObject: dict1 = [ a:1, b:1, c:1, ...] dict2 = [ a:2, d:4, e:6] etc. Thanks for your help in advance, Tamas

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Error Compiling Zope
by Blackberry 19 Jun '05

19 Jun '05

I'm trying to compile Zope on a remote (hosting) server. It gets pretty far, but then I get this error: copying and adjusting test.py -> /home/furlist/public_html/GroupServer-0.1rc3/Zope-2.7.4-0/build-base/python-2.4/build-scripts error: /home/furlist/public_html/GroupServer-0.1rc3/Zope-2.7.4-0/build-base/python-2.4/build-scripts/mkzeoinstance.py: No such file or directory make: *** [build] Error 1 There is no mkzeoinstance.py but there is a mkzopeinstance.py. Is there a spelling error somewhere, or a missing file?

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