August 2008 - Zope - Zope lists

Re: [Zope] Page Template help
by Garito 11 Aug '08

11 Aug '08

Hi Philipp! Thank you so much for your response but in this lines is were the engine loads the possibilities but not were evaluate the current expression I would like to evaluate some condition before to load the class who resolves the expression (and witch is loaded in the code you point me) More clear? Thanks! 2008/8/11 Philipp von Weitershausen <philipp(a)weitershausen.de> > Garito wrote: > >> Could someone point me where the page template code decide if an >> expression is a path expression or a string or python one, please? >> >> I'm studying the zope page template classes and I would like to understand >> where this decision is taken >> > > Products.PageTemplates.Expressions.createZopeEngine(): > > for pt in ZopePathExpr._default_type_names: > e.registerType(pt, ZopePathExpr) > > ZopePathExpr._default_type_names contains, among others, the name > 'standard', which makes this expression type the default expression type. > > _______________________________________________ > 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 ) > -- Mis Cosas http://blogs.sistes.net/Garito Zope Smart Manager http://blogs.sistes.net/Garito/670

2 1

Thesaurus / ontology / taxonomy support in Zope-Plone
by Benjamin Michiels 11 Aug '08

11 Aug '08

Hi, (I'm new to Zope and Plone, so don't hesitate to indicate me a more appropriate mailing-list if necessary) I am curently looking for a library (idealy, ready-for-Plone3.x-Zope2.10) allowing the creation and management of a thesaurus. Our requirements are the following: - creation of our own thesaurus (that is, terms AND relations between terms), and indexing (and retrieving) documents with terms defined in our thesaurus, - "thesauraus management facilities", such as batch editing of content items (e.g. for all documents indexed by keyword "A" and "B", replace keywords "A" and "B" by keyword "C"). - user-friendly interface. This could a be tree-like structure (with - ideally - several levels of indexing), such as: Shape - TS: Square + TS: Triangle - TS: Scalene triangle + TS: Equilateral triangle - [...] - [...] - [...] - [...] After some - basic - searches, it appears that there are not many thesaurus management developed for Plone/Zope (and maybe even in python) yet, but as I'm new to Zope-Plone, I may be mistaking: - PloneOntology looked interesting (http://plone.org/products/ploneontology) but is it still maintened (no release for one year)? - icSemantic / pyThesaurus (http://plone.org/products/icsemantic-thesaurus http://www.platecom.com/) looks promising but there isn't much documentation and the website is only in Spanish for the moment). - Tabajara (http://plone.org/products/tabajara) looks like a dead project (only works for Plone 2.1??). - I don't think Portal Taxonomy (http://plone.org/products/portal_taxonomy) or AT Vocabulary Manager (http://plone.org/products/atvocabularymanager) are suited for thesaurus - pyWordNet (http://osteele.com/projects/pywordnet/index.html) appears to be more a back-end to WordNet thesaurus than a thesaurus mangement tool. - so far, TextIndexNG3 (http://www.zopyx.de/projects/TextIndexNG3) looks the most promising, event if it doesn't appear to offer thesaurus management tools yet... What do you think of it and/or is there already a discussion on this topic? Thank you in advance, Benjamin Michiels -- Software AG Benelux

3 2

ZClasses deprecation and upgrades
by Behrens Matt - Grand Rapids 11 Aug '08

11 Aug '08

I am wondering about is the nature of the problems with ZClasses that led to their deprecation. If I move a 2.5.1 installation to 2.11, are my several existing ZClass-based products going to break in any known way I should be aware of? Should I consider a last-known-good upgrade target instead? Not really looking for ironclad assurances so much as general experience here.

2 1

Re: [Zope] Asking advice on best way to perform an interaction with an external webservice
by Marco Bizzarri 03 Aug '08

03 Aug '08

On Sat, Aug 2, 2008 at 11:36 AM, Andreas Jung <lists(a)zopyx.com> wrote: > > > --On 2. August 2008 10:11:10 +0200 Marco Bizzarri <marco.bizzarri(a)gmail.com> > wrote: > >> Dieter, thanks for your answer. >> >> I've to implement a SOAP client, and I wonder how to interact with >> the external webservice from a transactional point of view: I don't >> want to call twice the same service because of ZPublisher redoing >> transactions, and this sort of things. > > The transaction module or the ZODB provides a post-commit hook. > > -aj Thanks Andreas; I assume the post-commit hook is not available in the Zope 2.8 world, am I right? (In the meantime, Marco writes another "+1" to the item on his checklist named "porting to Zope 2.10") -- Marco Bizzarri http://iliveinpisa.blogspot.com/

1 0

Asking advice on best way to perform an interaction with an external webservice
by Marco Bizzarri 02 Aug '08

02 Aug '08

Hi all. I need to implement an interaction with an external web service. The external webservice basically can either provide or accept messages from my zope application. The messages are either produced by my application (and need to be "sent" to the external application via web service) or produced by the external application, and must be processed by mine. I'm asking then for best practice for this sort of interaction. Following what I have read in other threads, I would assume that, for example for sending, I should do something like: - create a queue of objects which needs to be sent, in one transaction; - sent the objects which need to be sent, in another transaction; The problem, of course, is to minimize (if not avoid at all) the chance to have a Conflict with a double sending of the message. In some sense, this is very close to sending an email via an smtp server, therefore, I assume I should at the right products to look for inspirations. Thanks you all for your time. Marco -- Marco Bizzarri http://iliveinpisa.blogspot.com/

3 3

Mouting + Logging Errors after Zope Upgrade 2.7.4 --> 2.11.1
by Wolfgang Lausenhammer 02 Aug '08

02 Aug '08

Hello! My company wants me to upgrade the timeworn zope-2.7.4 to one of the newest ones available. I decided to take zope-2.11.1 but after installing and running it in debug-mode i get the following error-messages: 2008-08-01T09:04:39 ERROR Zope.ZODBMountPoint Failed to mount database. ZODB.lock_file.LockError (Couldn't lock 'D:\\workspace_zope\\xla-2008/var/Stdcontainer_o.fs.lock') Traceback (most recent call last): File "D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", line 257, in _getOrOpenObject File "D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", line 147, in _getMountedConnection File "D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", line 157, in _getDB File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 288, in getDatabase db = factory.open(name, self.databases) File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 186, in open DB = self.createDB(database_name, databases) File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 183, in createDB return ZODBDatabase.open(self, databases) File "D:\zope\2.11.1\Zope\lib\python\ZODB\config.py", line 97, in open File "D:\zope\2.11.1\Zope\lib\python\ZODB\config.py", line 135, in open File "D:\zope\2.11.1\Zope\lib\python\ZODB\FileStorage\FileStorage.py", line 113, in __init__ File "D:\zope\2.11.1\Zope\lib\python\ZODB\lock_file.py", line 80, in __init__ File "D:\zope\2.11.1\Zope\lib\python\ZODB\lock_file.py", line 42, in _lock_file LockError: Couldn't lock 'D:\\workspace_zope\\xla-2008/var/Stdcontainer_o.fs.lock' .... TypeError: not all arguments converted during string formatting Traceback (most recent call last): File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 731, in emit File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 617, in format File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 405, in format File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 276, in getMessage self.cfg.eventlog() These are not the only ones, I get the first one for 5/18 databases and the second one 6 times when running the /manage site Do I have to be worried about those error messages or not? Another thing is that those messages appear only once every restart but the functionality of the pages hostet isn't affected... Hope you can help me, -- Wolfgang

3 3

CorruptedDataError: How to fix a corrupted
by Remy Pinsonnault 02 Aug '08

02 Aug '08

For an unknown reason, it seems our data.fs got corrupted last night. In the event.log I can see the following: ------ 2008-07-30T22:51:59 ERROR ZODB.Connection Couldn't load state for 0x086540 Traceback (most recent call last): File "C:\PloneExt\Zope\lib\python\ZODB\Connection.py", line 704, in setstate self._setstate(obj) File "C:\PloneExt\Zope\lib\python\ZODB\Connection.py", line 740, in _setstate p, serial = self._storage.load(obj._p_oid, self._version) File "C:\PloneExt\Zope\lib\python\ZODB\FileStorage\FileStorage.py", line 549, in load h = self._read_data_header(pos, oid) File "C:\PloneExt\Zope\lib\python\ZODB\FileStorage\format.py", line 193, in _read_data_header raise CorruptedDataError(oid, s, pos) CorruptedDataError: Error reading oid 0x086540. Found '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' at 10020462 ------ We tried to use the fsrecover.py utility but it gives us the following error when we run against the damaged data.fs: "input is not a file storage" Now is there anybody that knows how we could restore our data.fs because we have important data in it? Thanks in advance Remy

3 4

manage_cutObjects/manage_pasteObjects problem ...
by Ajay Deshpande 02 Aug '08

02 Aug '08

Hi all: Ive been trying to cut objects from one context and paste them into another using a script python. But I get a "CopyError" when I try doing this. This is my code snippet and the traceback ... Snippet... ... obj = context.restrictedTraverse(path) obj_parent = obj.aq_inner.aq_parent dest_folder = context.Dest # this is a folder object copy_info = obj_parent.manage_cutObjects((context.getId())) dest_folder.manage_pasteObjects(copy_info) ... Traceback: Traceback (innermost last): Module ZPublisher.Publish, line 115, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 41, in call_object Module OFS.CopySupport, line 194, in manage_pasteObjects Module OFS.CopySupport, line 527, in _verifyObjectPaste Copy Error: <HTML> <HEAD> <TITLE>Not Supported</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF"> <FORM ACTION="manage_main" METHOD="GET" > <TABLE BORDER="0" WIDTH="100%" CELLPADDING="10"> <TR> <TD VALIGN="TOP"> <BR> <CENTER><B><FONT SIZE="+6" COLOR="#77003B">!</FONT></B></CENTER> </TD> <TD VALIGN="TOP"> <BR><BR> <CENTER> The object <em>dtmij.txt</em> does not support this operation. </CENTER> </TD> </TR> <TR> <TD VALIGN="TOP"> </TD> <TD VALIGN="TOP"> <CENTER> <INPUT TYPE="SUBMIT" VALUE=" Ok "> </CENTER> </TD> </TR> </TABLE> </FORM> </BODY></HTML> .... I cannot perform this operation directly using the ZMI also. So it is not a problem with the script. Some issue in CopySupport. I searched for the resolution and found that CopySupport needs to be patched. But I couldnt find the patch anywhere. My Zope is 2.9.4-final, Python2.4.3. Any help is greatly appreciated. TIA, Aj "And the trees are all kept equal By hatchet, axe, and saw"

4 4

Timeout on server when python script is running
by sguglia＠arrows.it 02 Aug '08

02 Aug '08

Hello everybody! I have a python script running from a plone site..it takes a lot of time (1 hour maybe more) but I need to run it just for data recovery if something goes wrong. after about 20 minutes a "Timeout on server" message pops up.. I tried and found where to change timeouts in zope.conf, but nothing changed. Wrong place? Please help, thanks! Stef

4 3

Asking advice on a Zope "stuck" (or: what did I do wrong?)
by Marco Bizzarri 02 Aug '08

02 Aug '08

Hi all. While using ab to perform stress tests on an application, I've run in a situation where I have a "locked" Zope. I installed DeadlockDebugger, and tried to have a dump from it, but it is unable to answer, at leasts it seems to me. So, I followed the recipe from ZopeLabs: http://www.zopelabs.com/cookbook/1073504990 and got a traceback from gdb. info threads gives the following: * 5 Thread 0xb5b29b90 (LWP 17713) 0xffffe410 in __kernel_vsyscall () 4 Thread 0xb5322b90 (LWP 17714) 0xffffe410 in __kernel_vsyscall () 3 Thread 0xb4b21b90 (LWP 17715) 0xffffe410 in __kernel_vsyscall () 2 Thread 0xb4320b90 (LWP 17716) 0xffffe410 in __kernel_vsyscall () 1 Thread 0xb7d4b8c0 (LWP 17687) 0xffffe410 in __kernel_vsyscall () I'm including the traceback. As you can see, the last lines tell (for all the threads) are: File "/var/local/zope28/base288/lib/python/Shared/DC/ZRDB/Results.py", line 55, in __init__ if n != name: aliases.append((n, SQLAlias(name))) File "<string>", line 1, in ? Just one note: environment is Linux, Zope 2.8.8, python2.3 I understand Zope+python is quite old, so I'm just asking if there is some "general" purpose advice on what to do in this case. Regards Marco -- Marco Bizzarri http://iliveinpisa.blogspot.com/

1 0