April 2004 - Zope - Zope lists

DTML inside zope products
by Stephen Rudd 20 Apr '04

20 Apr '04

Dear Zope users and helpers; I have another problem and am stumped. I am creating a product that generates a load of dynamic bioinformatics information. Some content is displayed through DTML documents and methods that live within the ZMI. Other content lives in a collection of python classes within the product. I have a couple of instances when I would like a product to read some parsed DTML from the ZMI (to allow changes in layout / requested content etc). I collect the text from the Zope documents by for object in self.objectValues(): text += object.read() This works well, but the returned DTML remains as unparsed DTML. What should I be doing to recover the parsed DTML? Any help would be very gratefully received Thanks Stephen ----------------------------------------- Dr Stephen Rudd - genome astronomer Bioinformatics group Turku Centre for Biotechnology Tel. +358 2 333 8611 Fax. +358 2 333 8000 ------------------------------------------

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ZPT and SQL
by Samuele Giovanni Tonon 20 Apr '04

20 Apr '04

hi, i would like to access to results from a Query without knowing before names returned from the SQL and all with ZPT i think it could be clear with this example: suppose you have ZPT with this inside: <table tal:define="list_ppl container/show_list"> <tr tal:repeat="res list_ppl"> <td tal:content="res/name">Name</td> <td tal:content="res/lastname">Lastname</td> </tr> </table> show_list is this SQL method " SELECT * from ppl" this work, but i would like to make that table dynamic, so that i haven't to call esplicit the name of the column "name" and "lastname". Also it means that the number of td will change (so i should nest some tal:repeat inside ). i saw it's possible to ref to data inside res with index ( (res[0], res[1]) and i tried something like this but it's not working. Any tips ? <table tal:define="list_ppl container/show_list"> <tr tal:repeat="res list_ppl"> <span tal:define="num python:range(len(res))"> <span tal:repeat="vars python:res[num]"> <td tal:content="vars">vars</td> </span> </span> </tr> </table> i tried to search on google for some example of this kind but got no clue TIA Samuele

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LDAP UserFolder with dead slow LDAP server
by huima＠huima.net 20 Apr '04

20 Apr '04

Hi all, we are facing few problems with LDAP UserFolder in cases where authentication from the server takes long - even 20 seconds. For that time the thread of Zope naturlly freezes to wait for the server to return data. This is problematic since the centraliced LDAP-server will for sure return a lot of the queries in that fashion - and we really can't have the application to freeze down if X number of users try to login. Has anyone implemented anything that would come over similar problems with external authentication sources? -huima

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[Q] Persistence support for C wrapper extension
by Ames Andreas (MPA/DF) 20 Apr '04

20 Apr '04

Hi all, I'm in the course of low-level wrapping the ODBC api. Just in case you wonder: I know of mxODBC and pyodbc, they don't fit my needs as well license-wise as technically (I want better metadata access, thread-safety etc.). I'll use my wrapper from within Zope. There will be some python wrapper around the low-level stuff and I wonder if it makes sense to add pickle-support to that python wrapper. The ODBC api is object-based and exhibits four object types: environment, connection, statement and descriptor objects each of which has a set of methods and properties. Pickle-wise I'm not so concerned about persistence across shutdown/restart cycles (I think it's reasonable to re-create your ODBC environments, connections etc. after restart) but rather about consistency across ZEO-instances. My lack of experience makes me ask here for expert advise. 1) Does the ZEO scenario demand some pickle support, e. g. to use consitent environments/connections etc. across ZEO instances or do I just misunderstand ZEO? 2) If pickle support is a good idea: What scope would you find reasonable? I. e. I can imagine that persistence of environments/descriptors could be useful while persistent connections/statements could cause more trouble than they are worth. As you can see the whole thing isn't very clear to me and so I'd appreciate your comments. TIA, andreas

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help with product/zClass
by Michael Ruberto 19 Apr '04

19 Apr '04

I am trying to build a Product like this: adding an instance generates a folder containing an HTML template with a custom property set, and several Epoz Documents. The template has variables to render the contents of the Epoz Documents in the editable regions. I have gotten most of this to work as individual pieces so far but no luck in building a product. I know I can just write a DTML or Python script to make copies of a folder containing the files but I would then have to change every instance should the property set be revised later on. Ultimately I need for the user to be able to select the product from the add list and input the properties on the addForm. Then the constructor method would create the folder and files in the current directory. It seems simple enough but my lack of understanding of products and Zclasses is hampering me. I have closely studied all the examples and tutorials and learned a lot but none of it is helping. I would greatly appreciate any advice, pointers or suggestions. Thanks! Mike

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Community chat follow-up: Zope.org volunteering
by Paul Winkler 19 Apr '04

19 Apr '04

Unfortunately I wasn't able to attend the zope community IRC chat this week, but I read the transcript here: http://www.zopezen.org/Members/zopista/News_Item.2004-04-13.3929 I wanted to comment on one issue: <ChrisW> what happened to: <ChrisW> http://www.zope.org/About/ <ZCBrian> ChrisW: I'm __really__ anxious to get traction on that... <ZCBrian> ...but so far I haven't heard from anyone ;( <ZCBrian> Getting the process to work is the key to everything else Brian, you've hit the nail on the head with that last comment. To clarify - you "haven't heard from anyone" - do you mean you haven't heard from working group leaders, or you haven't heard from volunteers? If the latter, please note that to me, it is still not at all clear *how* to volunteer. I read http://www.zope.org/About with interest when it was announced several months ago. I noticed that the "Online click-through" agreement mentioned for content reviewers & site managers does not seem to exist (or if it does, I could not find it). I suppose one could email the working group leaders and ask about this, but their email addresses are not given. I checked again today, and that's still how things look. So, from my vantage point it looks like you're still getting the process worked out and aren't really ready to handle volunteers yet. Am I wrong? Please don't take this message as griping, I know you guys don't have a lot of time to spend on these issues, and I appreciate your efforts. P.S. On http://www.zope.org/About there are several mentions of a zweb(a)zope.org mailing list. http://www.zope.org/Resources/MailingLists does not mention a zweb list. Should that be zope-web(a)zope.org ? -- Paul Winkler http://www.slinkp.com

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Problems installing Zope 2.7.0
by Thorsten Scherler 19 Apr '04

19 Apr '04

Hello everyone, I am running Python version 2.3.3 on Linux 2.4.23-ck1 #5 i686 GNU/Linux. I downloaded the version 2.7.0 from http://zope.org/Products/Zope/2.7.0. I did the following: 1) thorsten@gatos:~/bin/Zope-2.7.0$ ./configure Configuring Zope installation Testing for an acceptable Python interpreter... Python version 2.3.3 found at /usr/bin/python The optimum Python version (2.3.3) was found at /usr/bin/python. - Zope top-level binary directory will be /opt/Zope-2.7. - Makefile written. Next, run make. 2) thorsten@gatos:~/bin/Zope-2.7.0$ make install "/usr/bin/python" "/home/thorsten/bin/Zope-2.7.0/setup.py" \ build --build-base="/home/thorsten/bin/Zope-2.7.0/build-base/python-2.3" --build-lib="/home/thorsten/bin/Zope-2.7.0/build-base/python-2.3/build-lib" --build-scripts="/home/thorsten/bin/Zope-2.7.0/build-base/python-2.3/build-scripts" --build-temp="/home/thorsten/bin/Zope-2.7.0/build-base/python-2.3/build-temp" Traceback (most recent call last): File "/home/thorsten/bin/Zope-2.7.0/setup.py", line 41, in ? import distutils.core ImportError: No module named distutils.core make: *** [build] Error 1 ...I am new to Python (but know Java) so if this would be Java I would say that is a classpath problem. ...but hopefully somebody knows what is going wrong with my installation. King regards Thorsten -- Thorsten Scherler Departamento de Desarrollo de Proyectos Sociedad Andaluza para el Desarrollo de la Sociedad de la Información S.A.U. Avda. de la Arboleda s/n 41940 - Tomares, (Sevilla) Tlfn: (+34) 955 062 627 e-mail: thorsten.scherler.ext(a)juntadeandalucia.es Este correo electrónico y, en su caso, cualquier fichero anexo al mismo, contiene información de carácter confidencial exclusivamente dirigida a su destinatario o destinatarios. Queda prohibida su divulgación, copia o distribución a terceros sin la previa autorización escrita de "Sociedad Andaluza para el Desarrollo de la Sociedad de la Información, S.A.U.". Si no es Ud. el destinatario del mensaje le ruego lo destruya sin hacer copia digital o física, comunicando a Sociedad Andaluza para el Desarrollo de la Sociedad de la Información S.A.U. vía e-mail o fax la recepción del presente mensaje. Toda declaración de voluntad contenida deberá ser tenida por no producida. Gracias. ____________________________________________________________________________ ___________________ The information in this e-mail and in any attachments is confidential and solely for the attention and use of the named addressee(s). You are hereby notified that any dissemination, distribution or copy of this communication is prohibited without the prior written consent of "Sociedad Andaluza para el Desarrollo de la Sociedad de la Información, S.A.U.". If you are not the formal receiver of this message please destroy it without making any digital or physical copy and inform "Sociedad Andaluza para el Desarrollo de la Sociedad de la Información S.A.U." , by e-mail or fax, of the reception of the present message. Any whatsoever involuntary declaration contained herewith must be taken as having no legal effect. Thank you.

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2.6.3 --> 2.7.0: Where's my w_pcgi?
by Wolfgang Müller 19 Apr '04

19 Apr '04

Hi, Positive: Firstly thanks to all involved with Zope for the great system. I have been runing Plone over 2.6.3, and just got my 2.7.0 running and had the data moved from a to b using just an export and an import. Great! Negative: I am missing pcgi. Till now I have been using the w_pcgi installation script. However, in the 2.7.0 tgz I got from zope.org, the pcgi directory does not contain any files. WEBSERVER.txt tells me quote To install PCGI, please get the PCGI support package from XXX, and read the pcgi/README.txt file from that package. unquote Can anyone on this list tell me, what's XXX or alternatively how to make my exsisting pcgi configuration work with the new Zope? If it's a FAQ I would be also glad to be pointed to TFM which solves my problem. Cheers, Wolfgang

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Ape & MySQL: Error adding ZODB MountPoint
by Elena Schulz 19 Apr '04

19 Apr '04

Hi, I want to add a ZODB MountPoint for an ape MySQL-Storage (My environment: MySQL-Server version 4.0.0-alpha-nt, Zope 2.7, WinXP). The MySQL-Server is running and I added a database named 'ape'. Trying to add a MySQL-connection to the Zope root object I always get an "Access denied for user: '@localhost' to database 'ape' " Error if I use just 'ape' as connection string. A connection is possible with a user from the acl_users. So I have some questions: 1. What should be the id for that MySQL-connection? 2. What user have to be added to acl_users? 3. What should be the connection string? Whenever I try to add a ZODB MountPoint I get the below error: Can anybody give some hints how to solve that? -- Thanks, Elena The error traceback: Error adding ZODB MountPoint Error Type: OperationalError Error Value: (1044, "Access denied for user: '@localhost' to database 'ape'") Error error_tb: Traceback (innermost last): * Module ZPublisher.Publish, line 100, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 40, in call_object * Module Products.ZODBMountPoint.MountedObject, line 283, in manage_addMounts * Module Products.ZODBMountPoint.Mount, line 120, in _test * Module Products.ZODBMountPoint.Mount, line 86, in _getOrOpenObject * Module Products.ZODBMountPoint.Mount, line 70, in _getMountedConnection * Module Products.ZODBMountPoint.MountedObject, line 138, in _getDB * Module DBTab.DBTab, line 96, in getDatabase * Module DBTab.DBTab, line 113, in _createDatabase * Module Zope.Startup.datatypes, line 172, in open * Module Products.Ape.datatypes, line 48, in createDB * Module Products.Ape.datatypes, line 36, in open * Module apelib.zodb3.storage, line 44, in __init__ * Module apelib.core.io, line 55, in open_connections * Module apelib.sql.dbapi, line 291, in connect * Module <string>, line 0, in ? * Module MySQLdb, line 63, in Connect * Module MySQLdb.connections, line 115, in __init__ * Module MySQLdb.connections, line 41, in _make_connection OperationalError: (1044, "Access denied for user: '@localhost' to database 'ape'")

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Pan European Portals Conference 2004 - Nottingham, UK
by Paul Browning 19 Apr '04

19 Apr '04

Apologies for multiple sightings. PEPC 2004 The programme is now finalised for this year's Pan European Portals Conference (PEPC) being held at the University of Nottingham on the 18-20th July 2004. Booking for the conference can be made online at <http:www.nottingham.ac.uk/pepc2004>. All delegate bookings received before 7th May 2004 will qualify for a 10% discount on the conference package. (This does not apply to accommodation). Paul -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bris.ac.uk URL: http://www.bris.ac.uk/

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