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Unable to join zope.org
by Hamish Lawson 11 Mar '01

11 Mar '01

A developer from the Midgard project wrote to me as his only Zope-related contact to say that he was unable to join zope.org (in order to participate in the ZPT wiki). I've just tried creating a test account and got the error below: SMTPRecipientsRefused {'hbl(a)st-andrews.ac.uk': (550, 'relaying to prohibited by administrator')} --- Hamish Lawson ____________________________________________________________ Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie

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Image refresh
by Patrick 11 Mar '01

11 Mar '01

Hi, let's say I have a set of logos I want displayed in a certain cell in a table. So far, I have the following code for this <dtml-var standard_html_header> <table width=100%> <tr> <td> <dtml-var render-image_dtml> </td> <tr> ...... </tr> </table> And this works fine.Now, I want to change render-image_dtml so that new images are loaded everytime the page is refreshed by a certain user and so that the images change automatically if the same page is viewed for say, 5 minutes. Any ideas? Thanks, Patrick.

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dtml-in sort by generic function
by Oleg Broytmann 11 Mar '01

11 Mar '01

Hello! For quite some time we, the Russian users of DTML (mostly we use DTML, not entire Zope), have a problem with dtml-in sorting. The sort is not locale-aware. The problem is that DT_In.py just calls s.sort(), and this is wrong way for locale-aware sort. For locale-aware one needs to write special comparisonfunction . In the most simple case the call is just s.sort(locale.strcoll). Well, I thought I'd write a patch for DT_In.py that would add another flag to dtml-in, something like <dtml-in seq sort=surname use_locale>, but a colleague of mine, Dennis Otkidach suggested more general approach - to make a patch that will allow to pass a generic function to sort(), something like <dtml-in seq sort=surname sort_func=foobar> where sort_func points to a Python function (like locale.strcoll), or Python Script function, or such. Any opinion? I see a minor problem here - if I want just locale-aware sort, I would write <dtml-in seq sort=surname sort_func=_.locale.strcoll>, but module locale is not available in DTML. Oleg. ---- Oleg Broytmann http://www.zope.org/Members/phd/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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ZHTTP Server allows server name
by Oleg Broytmann 11 Mar '01

11 Mar '01

Hello! Our system/network admins scanned our local network and found on my computer strange proxy :) > telnet localhost 8080 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. GET http://www.zope.org/ HTTP/1.0 Host: localhost Then Zope returned root page of localhost, not www.zope.org, so it is not security hole, but anyway I think ZServer should not accept server name in he request. Instead an error (perhaps HTTP error 400) should be returned. Should I report this to Collector? Oleg. ---- Oleg Broytmann http://www.zope.org/Members/phd/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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Keys from dictionaries
by Axel.Missbach＠t-online.de 11 Mar '01

11 Mar '01

Hi people, please tell me a way to get the keys and/or values form an dictonary in an DTML-Document I want to get the keys from the SQL-Method. I thought it has to look like this: <dtml-in Query> <dtml-var sequence-key> <dtml-var sequence-item> </dtml-in> The result ist only the first key and some curious value (perhaps the rest of the address string). Trying the equivalent in python-script, like for x in Query: print x.keys() return printed is rejected by the parser with regards Axel

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Adding languages to Zope-based Site
by Anton A. Zotov 11 Mar '01

11 Mar '01

Urgent: Could anybody please give me peace of advice on how to implement multilingual sites in Zope environment ? Thanks in advance.

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XML and Cocoon-type features
by Mayers, Philip J 11 Mar '01

11 Mar '01

All, Is there any way to do a similar type of thing that Cocoon does, namely publish documents written in an XML-ish type format into multiple formats automatically? Ideally, we'd like to author in DocBook or similar and be able to publish to XHTML (live), text, PDFs and possibly even WML. I know Cocoon can do this - is there anything similar in Zope? Regards, Phil +----------------------------------+ | Phil Mayers, Network Support | | Centre for Computing Services | | Imperial College | +----------------------------------+

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ZMySQL and MySQLdb
by Olaf Zanger 11 Mar '01

11 Mar '01

hi there, i had a zope 2.3 installation under suse 7.0 (python 1.5.2) running wonderfully with connection to mysql (don't know the version anymore) now i installed the same mysql-data,. zope-data on suse 7.1. with mysql 3.22.30 and ZMySQL da 1-2-0 and MySQLdb 0.1.2, python 2.0 now i can use the database, so the data and passwords should be correct. unfortunately, if i connect to the database i get the error message printed in the addendum. is it possible, that i have to recompile the MySQLdb ? what else could be the problem? thanks for help olaf addendum -------------------- Zope Error Zope has encountered an error while publishing this resource. BadRequest Invalid connection string: ipOperate soli-con Traceback (innermost last): File /home/soli-con/ipOffice/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /home/soli-con/ipOffice/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/soli-con/ipOffice/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File /home/soli-con/ipOffice/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/soli-con/ipOffice/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_open_connection) File /home/soli-con/ipOffice/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_open_connection) File /home/soli-con/ipOffice/lib/python/Shared/DC/ZRDB/Connection.py, line 220, in manage_open_connection (Object: RoleManager) File /home/soli-con/ipOffice/lib/python/Shared/DC/ZRDB/Connection.py, line 240, in connect (Object: RoleManager) File /home/soli-con/ipOffice/lib/python/Products/ZMySQLDA/db.py, line 155, in __init__ BadRequest: (see above) -- soli-con Engineering Zanger, Dipl.-Ing. (FH) Olaf Marc Zanger Lorrainestrasse 23, 3013 Bern / Switzerland fon:+41-31-332 9782, mob:+41-76-572 9782 mailto:olaf.zanger@soli-con.com, http://www.soli-con.com

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Saturday morning SELECT
by Paz 11 Mar '01

11 Mar '01

Morning/Afternoon/Night, Lazy Saturday morning, and I can't be bothered to leave the house. I've made a little template, but Im wondering if its Pandora's box... >ZSQL Method< select:required as:optional from:required where:optional select <dtml-var select> <dtml-if "as">as <dtml-var as></dtml-if> from <dtml-var from> <dtml-if "where">where <dtml-var where></dtml-if> <dtml-if "operand"><dtml-var operand></dtml-if> <dtml-if "equals"><dtml-var equals></dtml-if> It renders any way you please... Obviously you need very tight security on this as to who can access it... But other than using AUTHENTICATED_USER, is there any possible way you might exploit this? I have a habit of doing most of my work in the db, and something like this would totally ease the way I build forms..... Thanks, Paul Zwarts

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IPC9 Thoughts aka YACR
by ender 11 Mar '01

11 Mar '01

Yet Another Conference Report from IPC9 my thoughts on spending a few days at the conference. it was a blast. i finally got to put some faces to some names that i see on this list and other python lists, and got a chance to hang out with some DC folks. these guys like to party. word to the wise, beware those bearing snake tatoos:) Zope Stuff -DC reaches out to developers. DC in its everlasting wisdom has seen the light. namely, that zope should be KISSing developers not forcing them on the infamous Z (rotate 90%) learning curve. Zope will grow its market share and walk new roads when Zope embraces the developers that use it so they can create kickass products with their favorite appserver. so how does this mystical feat happen. (check list) 1. DC realizes that this is a good thing (TM). X Check 2. Zope goes modular, components and interfaces all the way. (Its coming). 3. Documentation is driven by interfaces and written for developers. (Its Coming) -Interfaces and Components This talk by Michel Pelletier was cool. Michel demonstrated some of the ideas and technologies that Zope will be embracing. I think this part has been overlooked by most of the conference reports, but i feel it is the best thing to happen to zope since.... well zope. nutshell version. components, interfaces, services, adaptors, something i forgot. basically everything zope has an interface, instead of subclassing a half-dozen classes to get standard zope behavior you can have your objects implement the proper interface and be done with it. Interfaces are all about separating the API from the implementation. which in the case of zope is desparetly needed. but wait there's so much more. you can hook up objects with different interfaces via adaptors. you can have some objects provide services like discovery of objects with particular interfaces... michel didn't finish his presentation but the kicker was a demo of a new type of publishing based on the component/interface architecture. drool factor X. i could use this in applications right now, if only DC would release the code (hint, hint, hint...). oh well, i'll settle for the paper for now. basically it worked like this, the publishing method would take an object and the Interface of the request (standard would be HTTPRequest) and a factory object would return an adaptor object which could connect the two interfaces. the publish method would call the adaptors traverse function to get the next object if didn't exist then it would call the last object found's publish method. imagine the possbililties, selectively opening up your zope objects to new protocols (xmlrpc, soap). traversing sql/ldap databases. zope arch outside of the web.... but there is so much more to the component model, you can walk up to an object and ask it what interfaces it supports so you can interact with it dynamically at run time. you can generate accurate documentation about your objects from the interfaces. you could create some nifty translators that would make your objects xpcom accessible, generate wdsl. (these are michel's ideas not mine). zope developers, get excited. the changes won't come all at once but the gradual changes might be astonishing enough. to see some examples of interfaces, basic components in action dig through the CMF. interfaces are in 2.3 btw lib/python/Interfaces side note - i heard a saying that sometimes when you think you've got an idea you can talk to jim fulton, and he can just say you're wrong, and bam it hits you. you're wrong. and then it happened to me:) -Debugging the zope way. check it out, (it helps if you're running zeo so you can browse and type), else shutdown your zope. cd lib/python/ python >import Zope >Zope.debug('http://localhost:8080/foo/index_html?bar=a) (theres lots more to it than that but thats what i remember). if something breaks you get to keep both pieces. aka i'm not being held responsible if you hose something. -emacs is cool. diehards unix types already knew this (whats vi?), but kenM of dc has a patch that jim fulton was using when demonstrating zope debuging that moved you to the appriopate file and method call.... my jaw is still recovering from the floor. i guess nowadays, when every python ide worth its salt (wing, komodo) can do this its no longer amazing, but damm i was impressed. -ZEO is distributed zope (duh) i don't know why this didn't hit me before, but zeo lets you do all sorts of new apps with zope, basically offering cheap python distributed communication and interaction. i've been searching for ways to interact with zope my python proggies, but my thoughts previously have always focused on shared external data stores, i hadn't really thought long enough about ZEO possibilities. -Pythonlabs goes ZODB - nough said - new berkely db zodb storage (no reference counting). - multimaster replication is good for you. (many moons will pass). - can you say zope has great documentation. not yet, but it looks like its coming. - Emacs is the life, but wingide just took my soul. i can't say enough good things about wing. bottom line, it saves me a lot of typing. i think the company is cool, they're giving back to the community both with key pieces of technology and offering open source developers free licenses. (please buy a copy anyways, they need the loot to make it boot). did i mention that the source browser kicksass and you can debug zope with it:) - I need more speed Scotty, philip elby and ty sarna are back at it again. they're trying to make your head hurt, but this time they're armed with documentation, so the not so oo, AOP, GP, enlightened can grasp on to something. meet transwarp, the successor to zpatterns. (interestingly enough philip admitted that zpatterns was one glorious hack on delegation in zope). and even better its not zope dependent. um... i can't really say much about this one just check out philip's zope.org page for more info. he started weaving and i started dodging:) between this and the component technology that should come into zope Other Web Stuff -webware - what can i say.... i like it. its not mature yet, but the source is readable (i will never accept the 1 letter variable name optimizations in zope), and its based on existing mature technologies namely java servlets, j2ee's entity beans (the MiddleKit OR mapper) and Apple Enterprise Web Objects. since i'm posting to the zope list, i'll let you find the url. i think there is some potential for cross-pollination of ideas and code here, if the license issues are compatible (i think they are). TaskKit a generic python daemon scheduler would be extremely cool to have in zope. -pywx/aolserver - Micheal Haggerty and Titus Brown have pulled off one hell of a piece of enginerring IMO. they took aolserver, an extermely high performance multithreaded webserver (it powers aol, and ArsDigita.com bet their business on it a long time ago), that was years ahead of its time (it came out in like 95), and comes with persistent db connections, a rich api that rivals some operating systems, and tcl as scripting language, and they made python a first class peer with tcl in it. (i like run ons, can you tell). i watched them at the conference where they basically made a webware adaptor in like 20 mins. zopitistas take note, these guys are seriously investigating replacing zserver with aolserver. besides having a high performance web server written in c, it will also allow you much greater flexibility in caching, since you can use aolserver to cache in memory (shared by all threads). incidentally i use aolserver with the acs (arsDigita) and its a nice platform, but if i could use python with it yikes, its scary. i can't even imagine using zope with it.... Random Artifacts -java in zope. JPE ... nough said, check it at also check phil harris's post on the matter to zope-dev a few months ago. http://www.arakne.com/jpe.htm -berkely db - robin dunn, updated cvs sometime today, because i just got the latest berkely db 3.2.9 linked up with bddb3 (the python module), and it passed the 130 odd unit tests included. very cool, nice work robin. Sign This Petition - IPC10 in amsterdam. well that was the petition at ipc9. dtml-contract - part shameless plug, part sheepless grin. i got some pointers from mr fulton on how to make this product work better, but i put out two releases which had indent errors in the same day. yikes, i think beer affects debugging:). anyways this very cool dtml tag is now functional and ready for downloads at http://www.zope.org/Members/k_vertigo/ZopeProducts/PageContract btw, if enough people bug me about the license being obnoxious i'll switch it to the LPGL (ChrisW, what are you waiting for:) this concludes YACR cheers kapil thangavelu

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