September 2008 - Zope

Re: [Zope] convert python to dtml
by Jaroslav Lukesh 06 Aug '09

06 Aug '09

> Odesílatel: Exteam <exteam6(a)yahoo.co.in> > hi all, > i'm stuck at this point, > can some one convert thge following python code in to > dtml & help me. > i'm not able to convert it in to dtml. Why do you want to recode into DTML? I think that is piece of good code and much faster than DTML. You could try following replacing (original line of your code, follows with DTML code), but not tested: > rec = context.test_select_sql() <dtml-call "REQUEST.set(rec , test_select_sql())"> > print "Fields definitions" Fields definitions > recordset = rec.dictionaries() <dtml-let "recordset = rec.dictionaries()" > rownum = 1 <dtml-call "REQUEST.set(rownum,1)" > for record in recordset: <dtml-in recordset> > print "Row %d" % (rownum), "check", record Row <dtml-var rownum>, check <drml-var sequence-item><br> > rownum = rownum + 1 <dtml-call "REQUEST.set(rownum,rownum+1)" </dtml-in> and so on on the rest of code. > for key in record.keys(): > print key, "=", record[key] > print "-" * 80 > return printed

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read-only-database
by Ulla Theiss 17 Mar '09

17 Mar '09

Hello list, I want to run the database in read-only mode from CD and configured it accordingly in the zope.conf: read-only-database on enable-product-installation off zserver-read-only-mode on Starting Zope, I get the following error: Traceback (most recent call last): File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 56, in ? run() File "\Programme\Zope\lib\python\Zope2\Startup\run.py", line 21, in run starter.prepare() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 98, in pre pare self.startZope() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 257, in st artZope Zope2.startup() File "E:\Programme\Zope\lib\python\Zope2\Startup\__init__.py", line 47, in sta rtup starter.setConfiguration(cfg) File "D:\Programme\Zope\lib\python\Zope2\App\startup.py", line 56, in startup File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 96, in getDatabase File "D:\Programme\Zope\lib\python\DBTab\DBTab.py", line 113, in _createDataba se File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 163, in o pen DB = self.createDB() File "E:\Programme\Zope\lib\python\Zope2\Startup\datatypes.py", line 160, in c reateDB return ZODBDatabase.open(self) File "D:\Programme\Zope\lib\python\ZODB\config.py", line 97, in open File "D:\Programme\Zope\lib\python\ZODB\config.py", line 133, in open File "D:\Programme\Zope\lib\python\ZODB\FileStorage\FileStorage.py", line 112, in __init__ File "D:\Programme\Zope\lib\python\ZODB\lock_file.py", line 57, in __init__ IOError: [Errno 13] Permission denied: '\\Zope-Instance/var/Data.fs.lock' r+ means opening the file for updating. This has not to do anything with read-only. Does anybody know what I have to configure additionaly, that read-only works? I run Zope 2.8.4 on windows. Many thanks in advance, Ulla.

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webdav upload - controlling type, hook
by Jakob Schou Jensen 11 Oct '08

11 Oct '08

When uploading a file to the zope db using the webdav interface zope select on object type based on the file contents (or extension?). For instance when I upload a html file it becomes a DTML document. Is there any way to control what type of object is selected? Additionally I would like to execute some script code after a webdav upload. Is there any way to get a hook or callback or something similar? Thanks, Jakob

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Zope hangs
by Nico Grubert 11 Oct '08

11 Oct '08

Hi there in the last days my Zope server seems to hang and the CPU is almost every time at 100 %. I installed DeadlockDebugger and see a lot of these entries: ----------------------------------------------------------------------------- File "/usr/local/Zope-2.10.5/lib/python/OFS/Traversable.py", line 288, in unrestrictedTraverse return obj File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 767, in setstate raise File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 820, in _setstate obj._p_serial = serial File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 605, in setGhostState obj.__setstate__(state) File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 597, in getState return unpickler.load() File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 471, in _persistent_load return self.load_oid(reference) File "/usr/local/Zope-2.10.5/lib/python/ZODB/serialize.py", line 537, in load_oid return self._conn.get(oid) File "/usr/local/Zope-2.10.5/lib/python/ZODB/Connection.py", line 225, in get return obj File "/usr/local/Zope-2.10.5/lib/python/ZODB/FileStorage/FileStorage.py", line 562, in load self._lock_release() File "/usr/local/lib/python2.4/threading.py", line 109, in acquire return rc ----------------------------------------------------------------------------- I am wondering what the last line File "/usr/local/lib/python2.4/threading.py", line 109, in acquire return rc does exactly mean. Are the threads blocked? My configuration: -Zope 2.10.5 running with 8 threads on a 2-CPU machine with 8 GB of RAM -Python 2.4.4 -LDAPUserfolder -Silva CMS 2.0.8 -ZODB size: ~6 Gbyte -Only 6-10 people work in the CMS and no public access (spy bots, crawlers) access the Zope server Regards Nico

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concerns with nfs
by David Bear 04 Oct '08

04 Oct '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Since I have started using vmware ESX as a hosting platform for zope, I've been mostly happy. However, I am wondering if I should have any concerns with storing the zodb on nfs. All our file systems on ESX are nfs mounted and lately we have had some interesting issues with the LAN that nfs runs on. So I'm am wondering if I should be concerned about storing the zodb on nfs mounted filesystems. - -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFI4lSfcjLlygO2EbARAne3AJ9qQg6SZQ9yMQOKnPu38Yg6B/NbggCggnVi 5P0tQ/wxNg7wBZBhAyiuVKQ= =SD8c -----END PGP SIGNATURE-----

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anyone seen these errors with Zope 2.11.1?
by Chris Withers 03 Oct '08

03 Oct '08

Hi All, I recently ugpraded to Zope 2.11.1 and now get the following errors every so often: Module Products.PageTemplates.ZopePageTemplate, line 330, in _exec Module Products.PageTemplates.ZopePageTemplate, line 427, in pt_render Module Products.PageTemplates.PageTemplate, line 96, in pt_render Module zope.pagetemplate.pagetemplate, line 115, in pt_render - Warning: Macro expansion failed - Warning: zope.tal.taldefs.METALError: macro nesting limit (100) exceeded by u'template/macros/showbullet' Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 534, in do_optTag_tal Module zope.tal.talinterpreter, line 516, in no_tag Module zope.tal.talinterpreter, line 346, in interpret Module zope.tal.talinterpreter, line 745, in do_insertStructure_tal Module Products.PageTemplates.Expressions, line 200, in evaluateStructure Module Products.PageTemplates.Expressions, line 232, in _handleText Module Products.PageTemplates.unicodeconflictresolver, line 69, in resolve Module zope.publisher.http, line 931, in getPreferredCharsets ValueError: too many values to unpack There appear to be two contradictory errors going on here: 1. - Warning: Macro expansion failed - Warning: zope.tal.taldefs.METALError: macro nesting limit (100) exceeded by u'template/macros/showbullet' 2. Module zope.publisher.http, line 931, in getPreferredCharsets ValueError: too many values to unpack Has anyone seen either? cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Moving zope data.fs
by Jakob Carlsson 01 Oct '08

01 Oct '08

Hi everybody, I have two Data.fs files and the Products directory from a server that was running two Plone websites (don't know anything more about Zope or Plone versions than it was Plone 2.5.x) that I'm trying to get up and running on the new server with no access to the old installation (we re-installed the server) but I can't get it to work in any way I have tried. I can't get Zope to read the database or it will not start at all. When I tried with the universal installer for Plone 2.5.3 (I think it was this version I got the longest with) I got it to read the database files but then I get program errors on almost every page in the ZMI so I can't go on with the installation. Anybody got a clue on how to get the pages up and running again or do I have to start over and add all information manually in two new Plone pages? I'm posting it here because I see it as a Zope error because I don't get near Plone before it fails. //jakob

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Strange redirect problem -- can someone assist?
by Dennis Allison 30 Sep '08

30 Sep '08

We frequently use a design pattern which uses a multi-part form on a page. The form is populated from a RDBMS. Multiple submit buttons capture the function to be performed. The form action routine breaks into a case-like if-elif-else statement. Each action (e.g,, 'add', 'edit', 'delete') is implemented as a separate block of code. The form uses <POST> to transfer parameters (all strings or empty) to the action. The action grabs the parameters, performs its function, and then continues in the application flow as needed, transferring control using a redirect to the desired URL with appended CGI parameter. Frequently the redirect simply return to the original form for further modification. My problem: In one form for one submit button, the redirect appears to fail. The action is performed but the page to which the action redirects upon completion is never displayed. Other actions from the same form work fine. We have been trying to isolate the problem, but have not been successful--everything looks correct, but we still see the one failure. Nearly identical code in other parts of the system works fine. Any suggestions would be appreciated. Is there somthing subtle and unusual about the way Zope 2.11 manages redirects? Zope 2.11 Python 2.4.X x86_64 processor running Centos 5.1 Thanks. -d --

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A question about __setstate__ in Shared/DC/ZRDB/Connection.py
by Marco Bizzarri 30 Sep '08

30 Sep '08

Hi all. I'm working on an application which uses Zope (2.8, at the moment) and ZPsycopgDA (toghter with a number of other products). While writing an acceptance test, I encountered a strange problem: the test locks up. A further investigation shown that there were two connections at the database; one of them was not committed, the other one was blocked waiting for the other to commit. I therefore used the pdb in order to stop the execution of the test inside the connect method of the ZPsycopgDA.DA. Once I had that breakpoint, I was able to get the logs of the two transactions on the database, and I had the confirmation that indeed there were two different transactions. So, I wondered what could possibily happen, I mean why during a test there could be a second connect to the database. I issued a "bt" to see the stack of calls leading to the connect, and what I could see was that the coonect was called inside the __setstate__ method of Shared/DC/ZRDB/Connection.py. I assume therefore that the ZPsycopgDA object has been "ghostified", during the transaction. But this "assumption" is not supported by any evidence. In particular, it is not supported by my knowledge of the internal behaviour of ZODB on objects during a single transaction. Can anyone provide suggestion on this topic? Regards Marco -- Marco Bizzarri http://notenotturne.blogspot.com/ http://iliveinpisa.blogspot.com/

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delete a variable from REQUEST
by indrajit926 indra 30 Sep '08

30 Sep '08

Hi All, Iam relatively new to zope. I want to delete a variable and it value from REQUEST.I used python pop() and __delattr__() ,but getting attribute error. Hoping someboby helps me. thanks , Indrajit.

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