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OQL
by Steve Alexander 24 Jun '00

24 Jun '00

Rogerio Atem de Carvalho <r.carvalho(a)cefetcampos.br> wrote: > I have a question: Will ZODB have something like OQL? > The problem in using ZODB is to do simple queries and > link different class object instances in queries (SQL > join). > It is hard to do simple things in ZODB like aggregate > functions (sum, max ...) > That's why I use an external RDBMS... The XPath and XQuery support that ought to be coming along with the new XML support will handle this, although not with OQL as such. The functionality will be about equivalent, though. http://www.zope.org/Wikis/zope-xml/XPath%20in%20Zope -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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DTMLTemplate in a ZClass
by RC Compaan 24 Jun '00

24 Jun '00

I have a DTMLTemplate inside the methods of a ZClass in which I defined blocks of text. when I reference the DTMLTemplate from another method of the ZClass I get a a "not authorised" error although i've set the DTMLTemplate and the calling method's proxy roles to manager and owner. Roché

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Zope 2.2.0b2 - PythonMethods
by Oleg Broytmann 24 Jun '00

24 Jun '00

Hello! Today my memory proved to be even worse than I thought yesterday (or may be I just forget how bad 'twas yesterday? :)! I remember DC submitted PythonMethods into CVS, but I cannot find PythonMethod in 2.2.0b2. Are PythonMethods for later versions? Or it will be separated Product forever? I have downloaded latest PythonMethods and successfully installed the component, but shouldn't it be in distribution? Or I just don't understand something? Oleg. (All opinions are mine and not of my employer) ---- Oleg Broytmann Foundation for Effective Policies phd(a)phd.russ.ru Programmers don't die, they just GOSUB without RETURN.

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Problem to init a DTML Document by uploading a file
by Fr�d�ric Quin 24 Jun '00

24 Jun '00

Hi all, I did'nt manage to init a DTML Document by uploading a file. I wrote : <dtml-call "manage_addDTMLDocument('my_id_html','','/home/index.html') I tried too : <dtml-call "manage_addDTMLDocument('my_id_html','',file='/home/index.html') And also : <dtml-call "manage_addDTMLDocument('my_id_html','',file_path) Zope always creates a DTML Document and init his body with the path of the file : it never uploads the file... I encounter the same problem with manage_addImage which is a bigest problem... Frederic

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(no subject)
by Jay, Dylan 24 Jun '00

24 Jun '00

Here's a feature I just submitted to the collector. It seems to me that a few tweaks to the dtml-if syntax would be beneficial something like the following would certainly clean up some of the logic I end up writing. <dtml-if X> <a href="a_url"> <dtml-always> link text <dtml-else> (no link currently available) <dtml-then> </a> </dtml-if> What do people think? I've not implemented it but I wouldn't imagine its very hard.

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Starting Zope on FreeBSD 2.2.8---Python dumps core
by Loren M. McCarter 24 Jun '00

24 Jun '00

I'm having difficulty starting Zope. Versions: Zope: 2.1.6, compiled from source with "python wo_pcgi.py" Python: 1.5.2, (#2, Jan 17 2000) [GCC 2.7.2.1] on freebsd2 Python is compiled with pthreads enabled. FreeBSD: 2.2.8 (yes, I know it is outdated). Problem Description: The compilation process seems to go just fine, with no errors reported. When I invoke the "start" script, I get the following output: ------ 2000-06-23T19:42:58 PROBLEM(100) ZServer Computing default hostname ------ 2000-06-23T19:43:19 PROBLEM(100) ZServer Computing default hostname ------ 2000-06-23T19:43:40 PROBLEM(100) ZServer Computing default hostname ------ 2000-06-23T19:44:01 PROBLEM(100) ZServer Computing default hostname .... continues I've read that this PROBLEM(100) is no big deal, and that the Zope server eventually starts on most installations. Unfortunately with my installation, the server never starts, I cannot resolve 127.0.0.1:8080 and with each iteration, python dumps core. I don't know if it helps, but 'gdb -c python.core' returns the following: Core was generated by `python'. Program terminated with signal 10, Bus error. #0 0x2ef23 in ?? () (gdb) What I've tried: (1) I changed the permissions on the various Zope subdirectories (e.g., id= root, nobody, lorenmc) so that Zope can write to files, but this seems to have no effect; (2) Reviewed ./var/Z2.log, but it is empty; (3) I ran through "z2.py" line-by-line and noticed that python exits when it reaches the portion of the script that calls the "zdaemon.run" function, which seems to be a function that forks processes. Has anyone had this problem? Any advice besides "upgrade to a newer version of FreeBSD or switch to Linux?" Thanks. Loren ------------------------------ Loren McCarter Graduate Student, Behavioral Neuroscience UC Berkeley

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RE: [Zope] Please test this Zope 2.2 beta 1 ZSQLMethods fix...
by Brian Lloyd 24 Jun '00

24 Jun '00

> BUT, the BIG problem I'm having is still with the external method in > courseList.py. > > <snip> > > Any ideas? Now, it could just be my programming. With the > new 2.2 version > I may need to add security information to each object (which > I don't know > how to do). Right now I'm just starting with a blank class > and adding a few > properties to it. Zope may be looking at it and thinking, > "What the heck is > this thing?" The idea was to trick Zope into thinking it was > a Z SQL query; > perhaps 2.2 isn't so easily fooled...? I think that you have hit it on the head - we're trying *hard* to make Zope harder to fool :^) Try adding the following to your class statement, for example: class MyClass: __allow_access_to_unprotected_subobjects__=1 def __init(self, foo): ... ...You'll need to restart Zope for this to take effect. Hope this helps! Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Re: [Zope] Can not add Zope Tutorial with 2.2
by addyd＠unk.edu 23 Jun '00

23 Jun '00

Click on Control Panels>Products in Manage and I think you'll see the tutorial is already installed. At least it was with the .exe version. Darren Addy Internet Specialist and Interim Web Presence Coordinator Office of Information Technology Services University of Nebraska at Kearney

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Re: [Zope] R: [Zope] Invalid Header (0) error
by Dieter Maurer 23 Jun '00

23 Jun '00

Richard Moon writes: > I think you are near to the answer. > > ... sevaral blank lines at start of rendered page ... Zope wants to add a BASENAME URL in the HTML <HEAD>. Therefore, it looks for an HTML header. Obviously, it gives up with "Invalid Header", when is can not find it near the very start of the page. The relevant code is probably in "ZPublisher.HTTPResponse", maybe "ZPublisher.HTTPRequest". Dieter

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Re: [Zope] (no subject)
by Dieter Maurer 23 Jun '00

23 Jun '00

Jay, Dylan writes: > Here's a feature I just submitted to the collector. > > It seems to me that a few tweaks to the dtml-if syntax would be beneficial > something like the following would certainly clean up some of the logic I > end up writing. > > <dtml-if X> > <a href="a_url"> > <dtml-always> > link text > <dtml-else> > (no link currently available) > <dtml-then> > </a> > </dtml-if> > > What do people think? I've not implemented it but I wouldn't imagine its > very hard. I am not in favor. It is only slightly shorter/more readable than the standard solution but requires two additional keywords. In standard Zope, your example reads: <dtml-if X> <a href="a_url"> </dtml-if> link text <dtml-if X> </a> <dtml-else> (no link available) </dtml-if> Dieter

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