July 2006 - Zope - Zope lists

Zope performance experiences
by Sinang, Danny 17 Jul '06

17 Jul '06

Dear All, Can anyone share their experiences on Zope's performance, what your hardware / Zope configs are, and how you plan to scale ? Regards, Danny

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Re: [Zope] question on simple_send in MailHost
by knitti 17 Jul '06

17 Jul '06

On 7/17/06, Andreas Jung <lists(a)zopyx.com> wrote: > Put this in the bugtracker...otherwise it will be lost. > will do on one of the next days... --knitti

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RE: [Zope] Recreating catalog contents
by Sinang, Danny 17 Jul '06

17 Jul '06

Already tried, but we're getting multiple-undo errors. -----Original Message----- From: Andreas Jung [mailto:lists@zopyx.com] Sent: Monday, July 17, 2006 4:55 PM To: Sinang, Danny; zope(a)zope.org Subject: Re: [Zope] Recreating catalog contents --On 17. Juli 2006 16:51:06 +0800 "Sinang, Danny" <D.Sinang(a)spi-bpo.com> wrote: > Hello, > > Am using Zope 2.7.6-final. > > We accidentally clicked on the "Clear Catalog" button and all the > catalog contents were zapped. > > However, the folder containing the said catalog still has the > information we need. > > We can still list down the once-cataloged list of workflow processes > using the object_values() function. > > Can anyone here guide me on how to recatalog these objects ? > > Try "Undo", try using the "Find" tab. -aj

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Recreating catalog contents
by Sinang, Danny 17 Jul '06

17 Jul '06

Hello, Am using Zope 2.7.6-final. We accidentally clicked on the "Clear Catalog" button and all the catalog contents were zapped. However, the folder containing the said catalog still has the information we need. We can still list down the once-cataloged list of workflow processes using the object_values() function. Can anyone here guide me on how to recatalog these objects ? Regards, Danny Sinang Senior Software Architect Publishing SPi T: 632 855 9469 M: 63 918 9178020 E: d.sinang(a)spi-bpo.com <mailto:ed.sinang@spi-bpo.com> www.spi-bpo.com <http://www.spi-bpo.com/> The contents of this e-mail message may be privileged and onfidential. Therefore, if this message has been received in error, please delete it without reading it. Your receipt of this message is not intended to waive any applicable privilege. Please do not disseminate this message without the permission of the author.

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installing zope with appropriate python version
by Noah 17 Jul '06

17 Jul '06

Hi there, I am attempting to install zope and currently there are two versions of python on the machine 2.3.5 and 2.4.3. The zope installed is telling me it is going to use the older version of python of 2.3.5 . Is this proper and welcome behavior? -- snip --- # ./configure Configuring Zope installation Testing for an acceptable Python interpreter... Python version 2.4.3 found at /usr/local/bin/python Python version 2.3.5 found at /usr/local/bin/python2.3 The optimum Python version (2.3.5) was found at /usr/local/bin/python2.3. - Zope top-level binary directory will be /opt/Zope-2.8. - Makefile written. Next, run make. ---- snip ---

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Inavlid Refernce Counts in Temporary Storage
by Philip Kilner 16 Jul '06

16 Jul '06

Hi All, I have an RDBMS application, which resides in a Plone site, but uses only Zope techniques. Aside from Plone, the only use of the ZODB is to hold session variables for users (search parameters etc.), and the load on that part of the system is very light (10 users, accessing the script in question once every couple of minutes at the most). The session variables are written by simple TTW Python scripts, and read back by TALES expressions - all very simple. For the last three days, we have been plagued by slowdowns and temporary lock-ups, which have on a couple of score occasions culminated in a Conflict Error, indicting transactional problems in the temporary storage. On four or five occasions, Zope has apparently "locked up", and a restart has been required. Today, I am seeing errors when I try to pack this storage: - ------ 2006-07-13T15:09:11 ERROR Zope.SiteErrorLog http://10.0.0.7:8080/Control_Panel/Database/temporary/manage_pack Traceback (most recent call last): File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\ZPublisher\Publish.py", line 114, in publish request, bind=1) File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\ZPublisher\mapply.py", line 88, in mapply if debug is not None: return debug(object,args,context) File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\ZPublisher\Publish.py", line 40, in call_object result=apply(object,args) # Type s<cr> to step into published object. File "D:\Program Files\Enfold Server\Zope\lib\python\App\ApplicationManager.py", line 426, in manage_pack t=db.pack(t) File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\ZODB\DB.py", line 634, in pack self._storage.pack(t, referencesf) File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\tempstorage\TemporaryStorage.py", line 350, in pack self._takeOutGarbage(oid) File "D:\PROGRA~1\ENFOLD~1\Zope\lib\python\tempstorage\TemporaryStorage.py", line 321, in _takeOutGarbage raise ReferenceCountError, ( ReferenceCountError: An error occured while decrementing a reference to an object in the commit phase. The object's reference count was below zero. (Oid '\x00\x00\x00\x00\x00\x00\x00;' had refcount -1) ------ This seems to indicate that the temporary storage is corrupt in some way - am I right? If so, what do I do about it? Could this indicate a RAM or disk problem, since the application has not changed significantly, at least at the level of my TTW code? Any input welcome - aside from this simple use of the session, I never have to manipulate the ZODB, so this is pretty new to me! -- Regards, PhilK "Human language continually changes, innit." - Stephen Juan

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__bobo_traverse__ and a no-object
by Garito 15 Jul '06

15 Jul '06

Hi all! Please, look at this code: def __bobo_traverse__(self, REQUEST, name): obj = getattr(self, name, None) if obj is not None: return obj else: obj = self.Dame(name) if obj is not None: return obj else: if 'Parametros' in self.REQUEST: self.REQUEST['Parametros'] = self.REQUEST['Parametros'] + [name] else: self.REQUEST['Parametros'] = [name] return self self.Dame is a function that seeks for an object with the name "name" I wonder why I can do this on a Page Template: <tal:b tal:replace='python: here.Texto' /> Where Texto is a adquired property, but not this: <tal:b tal:replace='here/Texto' /> because zope raises an unauthorized error How can I solve this point? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito

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Zope 3 clues for getting started
by Dale Strickland-Clark 14 Jul '06

14 Jul '06

We're considering Zope 3 for some new sites and for re-factoring some existing projects. Initially, we want to use it as an authentication engine for the existing sites and then then it will control the new sites as they come online. This is early stages (I haven't managed to install Zope 3 yet) so we have some reading to do but I wonder if I could get some answers to a couple of simple questions: 1. I assume the Zope 3 authentication engine is at least as capable as the Zope 2 one in that you can assign roles to users and require roles for a page to display? 2. Is it possible to keep the users' passwords in clear text so they can be emailed if the user requests it? 3. Where is the API documented that we call to check if a user/password combination is valid? 4. Where is the rest of Zope 3 documented? I've found this http://www.zope.org/Wikis/DevSite/Projects/ComponentArchitecture/FrontPage/… but it doesn't seem complete. Thanks for any help. -- Dale Strickland-Clark Riverhall Systems Ltd - www.riverhall.co.uk London UK

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Alternate Forms of Authentication
by Benjamin Menking 14 Jul '06

14 Jul '06

Hello all, Just getting into Zope and loving it! I do have a question about the basic authentication that Zope uses... I have a login page (ZPT) and would love for Zope to display that page instead of the basic auth dialog when it determines it needs to authenticate. Is this possible? Is there a Product that does this? I have looked at the PluggableAuth and related Products but they either don't seem to do what I want or I can't find enough text to determine what would fit my needs. Thanks! -- Ben Menking IT Security Consulting (864) 420-5603 (864) 751-1638 fax IT and Business Solutions

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Re: [Zope] Creating and displaying lists
by larrymcdonnell＠att.net 14 Jul '06

14 Jul '06

Hi Jonathon, I will adjust my code. I have written some Python code but very simple tasks and would like to do more. I don't program that often. I work for a school system in Connecticut. So if you have an example of what your are talking about I am willing to try it. Thanks again, Larry -------------- Original message from "Jonathan" <dev101(a)magma.ca>: -------------- > > ----- Original Message ----- > From: larrymcdonnell(a)att.net > To: zope(a)zope.org > Sent: Thursday, July 13, 2006 4:03 PM > Subject: [Zope] Creating and displaying lists > > I need to collect a list of student id numbers from one table so I can take > this list, find them in another table, and display their names so their > teachers can give them a score. > > I still like to use DTML but I do not know if I have the sequence-number in > the proper format. This is what I have been playing with: > > > > > > > > > > > > , > > > > > > > > I think there is some confusion here. You should break this into 2 sections > (and it would be much easier in a python script), but if you want to use > dtml... > > The first section should build the list you are trying to display in the > SELECT statement. It looks like you are trying to create a list of 'tuples' > where each tuple consists of (id, lastname, firstname). I don't know where > your data is coming from, but you could do something like: > > # creates an empty list > > > # add one > tuple (record) to the list > > > After you have built your list test it by displaying it: > studentList> to see if you have the right data in your list. > > You can then proceed to the next section where you are building your SELECT > statements (warning: not tested and very ugly dtml) > > > > " > > , > "_['sequence-item'][2]"> > > > > > > hth & Good Luck > > > Jonathan >

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