September 2003 - Zope

Macromedia and ZPT source code issues when saving
by Jordi 24 Sep '03

24 Sep '03

Hello, I have applied the patch for webdav that changes the object name to an extension that Macromedia will understand <http://mail.zope.org/pipermail/zope/2003-April/134076.html>. So far so good. The problem appears when the designer saves the page template back to Zope. The source code contains the rendered HTML instead of the TAL/TALES/METAL tags. Am I missing something here? TIA Jordi

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Sending Mail from Page Template
by Matthias Suencksen 23 Sep '03

23 Sep '03

Hello! What is the most elegant way to send an email from a page template? My current solution is to call the send() method of the MailHost object from an "External Method". Is there a more direct way? Regards, Matthias Suencksen

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RE: people structuring
by paulporter＠buffalotalks.com 23 Sep '03

23 Sep '03

OK, I am very new to Zope so I might be sending this user on a wild goose chase without meaning to. I hope those who are more experienced will jump in and correct me if I'm wrong; because it is certainly not my intent to do harm. I believe that this Zope Product may give you the flexibility you are looking for. It is called "GroupUserFolder" and is a group user tool for Zope. I am working with it at this time in a similar situation, where I have Divisions, Units and Users to keep track of. I'm not far enough along in my efforts however to say with certainly that it will be the answer to your problem. You can find this product at: http://ingeniweb.sourceforge.net/Products/GroupUserFolder/ HTH; Paul --------------[Original Message]-------------------------- Date: Mon, 22 Sep 2003 17:24:08 +0800 From: Roman Bogoyev <roman(a)maths.uwa.edu.au> Subject: [Zope] people structuring To: zope(a)zope.org Message-ID: <3F6EBFB8.3040501(a)maths.uwa.edu.au> Content-Type: text/plain; charset=us-ascii; format=flowed Hello, Being new to zope, I'm having trouble wrapping my brain around how to structure people objects in our dept. Perhaps this is a common modelling problem which someone has done before: We have people, and people may have many different roles. So for example, a person can be a lecturer and also a fire warden. Now each person has common properties, and then more specific ones as a lecturer or fire warden. So I create a container for common persons, and then containers for lecturers and containers for fire wardens. Each is its own class, with its own properties. Now with my brain still full of relational data base concepts, I use each object's id as a key, so to look up lecturer Joe's telephone number, I say in the context of lecturer, joe.people.joe.telephone which is very ugly and path dependent.... furthermore, if Joe the lecturer has a specific phone number then I want that, not Joe the person's number. Another way could be to have a getTelephone() method and use aquisition, but again, that would be structure dependent - all lecturers and firewardens would have to live in containers within the People container. So can an object 'inherit/acquire' another object's properties without that object being a subclass of the other? Should I forget this altogether and use ZCatalogues? Is there something really obvious staring me in the face? Thanks for any pointers. Roman.

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__before_publishing_traverse__: VHM put into TraversalRequestNameStack
by Tobias Herp 23 Sep '03

23 Sep '03

Hi, you all, I'm running several virtual hosts (Zope 2.6.2) behind an Apache. When I access a virtual host, the __before_publishing_traverse__ method of my site class sees a slash and the VirtualHostMonster on the top of the TraversalRequestNameStack (indexes -2 and -1). Is this a bug, or is it a feature I should rely on? Thanks, Tobias

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MySQLDA, Mac OSX connection problem
by Avni Khatri 23 Sep '03

23 Sep '03

Hi, I'm new to zope / plone. I was wondering if someone could help me out. - I installed plone on mac osx (using the binary) and everything works great. - I then wanted to connect to an RDBMS. So I installed mysql on the same box (osx) and that works great. I gave my db root user a password and set up the permissions. - I then installed mysql-python package and that seemed to go well. - I next installed ZMySQLDA by putting it in the the zope python dir and restarted zope - The product shows up. Ican add a "Z MySQL Database Connection" object type no problem. It says the connection is open. - However when I try the "Test" tab, the resulting page always has the following error: _mysql_exceptions.InternalError Sorry, a site error occurred. Traceback (innermost last): Module ZPublisher.Publish, line 150, in publish_module Module Products.Localizer, line 58, in new_publish Module ZPublisher.Publish, line 106, in publish Module Zope.App.startup, line 222, in abort Module ZODB.Transaction, line 135, in abort Module Shared.DC.ZRDB.TM, line 60, in abort Module Products.ZMySQLDA.db, line 328, in _abort InternalError: (-1, 'connection is closed') - My connection string is db@ip username password which all the docs say is correct? Am I missing something? I am running Plone 1.0.5, Zope 2.6.2b5, Mac OS 10.2.6, MySQL 4.0.15 Does anyone have any ideas / suggestions? I've perused the mailing lists and web sites and haven't been able to find a solution that works. I'd appreciate any help. Thanks much, Avni __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com

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Re: [Zope] Are products the right approach?
by nwingfield＠che-llp.com 23 Sep '03

23 Sep '03

Carsten - > 1) Should Equipment and SparePart be classes or perhaps instead tables in my > RDBMS? (ATM they are classes to facilitate the history/undo functionality in > Zope) I have found Zope's undo feature to be highly unreliable. Just perform a couple operations in sequence, then try to undo the first operation. In my experience Zope throws up its hands and says "I forgot where I put that..." If you want this feature you'll have to do it yourself. > 2) Should I make it all as classes (including the Log)? My only suggestion would be to use either RDBMS or ZODB exclusively. Suppose it comes time to restore from backups. How will you know if your ZODB backups are in sync with your SQL backups? It could be tricky. > 3) How do you make relations between objects in Zope? (For use in eg. > reporting) Check out the ZCatalog. For heavy duty reporting, though, you can't beat relational databases. One final remark on classes: using the ZODB gives you a lot more flexibility in modeling physical objects (Equipment, Spare Parts). If I were to use Zope classes, I would try to create a class that is far more flexible, perhaps an "Inventory" class that can behave as any type of inventory. I might even create an "Inventory Type" class that contains information about the various inventory types (maybe the TV people can even add their own inventory types with some well-designed web methods). If you think in terms of a theatre production, you could treat these two classes as actor and director. There may be lots of actors in a production, but only one director (at the root) that tells each actor how to behave depending on their role they have been assigned. I've used this model very effectively in my own development. - Nathaniel

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Newbie alert
by Michael Shanahan 23 Sep '03

23 Sep '03

Ho folks, golly, I honestly hate doing this so please forgive my apparent arrogance in that my first post is a cry for help. I recently installed Plone, Zope latest releases on a Linux server in front of Apache. Nothing fancy, an almost out of the box installation. All seemed to be working fine until yesterday when everything stopped. I have shell access to the linux box and have tried the following: ./stop ./start -D which produces no errors. Yet. When I attempt to open my zope site or ZMI from within a browser, the browser appears to start loading the site and eventually stops after some considerable time. If anyone can point me in the direction of a starting point then I'd be so deeply grateful. Aside... I've worked as a database programmer for many years and realise how pathetic my problem must seem so please forgive me. Many thanks, Regards, Michael

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use traversed subpath to insert REQUEST variables
by Tobias Herp 23 Sep '03

23 Sep '03

Hi, you all, I have a quite large Python product which publishes (possibly multi-language) pages based on layouts which are chosen based on the user agent. Unfortunately this doesn't cache very well, and there is a lot of REQUEST fiddling during the page computation. So my idea is to put the language and layout information into the URL, e.g. www.my-site.com/en/default/home/ for the english version of the '/home' page, using the 'default' layout, and add the REQUEST variables which are set internally during traversal to the key variables used by the RAM cache manager. I reckon I need to write a __bobo_traverse__ method for my site class (in this example, rewritten to the virtual host www.my-site.com) and return the 'home' page, inserting the appropriate REQUEST variables. Is there a How-To anywhere concerning this? Thanks in advance, Tobias

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AW: GNU tar damage for the 5000th time, was Re: [Zope] z2 startup exception
by Arenz, Ralph 23 Sep '03

23 Sep '03

Hi, please stop the tar-discussion, i was using tar (GNU tar) 1.13.18 on SuSE Linux 8.0 and the Module Splitter exists! Ralph -----Ursprüngliche Nachricht----- Von: Andreas Jung [mailto:andreas@andreas-jung.com] Gesendet: Dienstag, 23. September 2003 06:38 An: Jamie Heilman; 'zope(a)zope.org' Betreff: Re: GNU tar damage for the 5000th time, was Re: [Zope] z2 startup exception What about using a TAR that works for your platform? Stinking or buggy software is not an argument for restructuring the Zope source tree. -aj --On Montag, 22. September 2003 13:31 Uhr -0700 Jamie Heilman <jamie(a)audible.transient.net> wrote: > Arenz, Ralph wrote: >> ImportError: No module named Splitter > > This is usually indicitive of Zope being unpacked with something other > than GNU tar. > > You know, for the frequency this problem occurs you'd think something > could actually be done about it that would solve it forever. Waiting > for all the versions of tar in the world to suddenly agree on how to > handle path names containing over 100 characters isn't a terribly > effective approach. What would be really swift, is if Zope Corp just > restructured their code so there were no longer any paths that > exceeded said limit. > > -- > Jamie Heilman http://audible.transient.net/~jamie/ > "Paranoia is a disease unto itself, and may I add, the person standing > next to you may not be who they appear to be, so take precaution." > -Sathington Willoughby > > _______________________________________________ > 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 ) _______________________________________________ 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 )

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z2 startup exception
by Arenz, Ralph 23 Sep '03

23 Sep '03

Hello, i' ve some trouble by the migration from zope version 2.4.4 to 2.6.2. I use python 2.2 and a "Instance_Home" configuration. After Installing and compiling Zope with python2.2 it works well in the default-environment. In the context of Instance-Home a z2-startup exception appears with the following traceback: 2003-09-22T15:04:13 PANIC(300) z2 Startup exception Traceback (innermost last): File /usr/local/opt/Zope/server/Zope-2.6.2-src/z2.py, line 585, in ? (Object: ZLogger) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Zope/__init__.py, line 46, in startup (Object: startup) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Zope/App/startup.py, line 92, in startup File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/OFS/Application.py, line 409, in initialize (Object: Zope) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/OFS/Application.py, line 567, in install_products (Object: Zope) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/OFS/Application.py, line 629, in install_product (Object: Zope) (Info: PythonScripts) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Products/PythonScripts/ __init__.py, line 41, in initialize File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/App/ProductContext.py, line 335, in registerHelp File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/App/ProductContext.py, line 257, in registerHelpTopic File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/OFS/ObjectManager.py, line 272, in _setObject (Object: Help) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/HelpSys/HelpTopic.py, line 79, in manage_afterAdd (Object: PythonScript_edit.stx) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/HelpSys/HelpTopic.py, line 92, in index_object (Object: PythonScript_edit.stx) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Products/ZCatalog/ZCata log.py, line 500, in catalog_object (Object: catalog) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Products/ZCatalog/Catal og.py, line 377, in catalogObject File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/Products/PluginIndexes/ TextIndex/TextIndex.py, line 309, in index_object (Object: SearchableText) File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/ZODB/Connection.py, line 554, in setstate File /usr/local/opt/Zope/server/Zope-2.6.2-src/lib/python/ZODB/Connection.py, line 590, in _set_ghost_state ImportError: No module named Splitter any ideas ? Ralph

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