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Re: [Zope] [python] creating variable names by adding 2 strings?
by Dieter Maurer 22 Jan '01

22 Jan '01

Lee writes: > I'm creating variables in python but I am having trouble creating them > when they're *named* using other variables. Here's an example; > > while (p!=0): > p+`p`= string.replace(component[control], ",", "") > # e.g. I want 'p1 = string.replace.blah...' > p=p-1 > control=control+1 > > ==> SyntaxError: can't assign to operator :( Why do you want to do that? It is really strange, that you want computed variable names in local namespaces. If you want them in an object, class or module, you could use "setattr". If it should go into the current module, you could use "globals()[name_expr]=value" (though the Python spec says, this may change in future implementations). Note, that security restrictions may prevent you from using "setattr" in Python scripts. Dieter

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Re: [Zope] Simple ZClass Question
by Dieter Maurer 22 Jan '01

22 Jan '01

Gerald Gutierrez writes: > Using Zope 2.3.0b2, I've found that if I create a ZClass with "Include > standard Zope persistent object base classes" enabled, I can instantiate > the ZClass right away. If I don't have it enabled, I can still create the > ZClass, but instantiating it gives me the following error: > > Zope has encountered an error while publishing this resource. > Error Type: AttributeError > Error Value: _setId In order to put an object into the ZODB, it must have appropriate infrastructure, such as "_setId" (it must be a Persistent instance, too). The necessary infrastructure is provided, when you check the "Include ... persistent base classes". Otherwise, it is not. You would check this option, when your ZClass should produce ZInstances in the ZODB. You would not check it, when you want to use them as pluggable brains for ZSQL methods (for example). Dieter

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Re: [Zope] Numeric Entries in Catalog Search
by Tim Cook 22 Jan '01

22 Jan '01

Chris Withers wrote: > Your problem may be the use of Text Indices. These use the voabulary, which > handily strips out digits when indexing :-( I did not know that. > The way to get around it would be to use a Field Index... > ...of course, then you can't use globbing matches like that, so there's no real > solution :-( Yeah, the globbing vocab. is pretty necessary. " Keyword Indexes index a sequence of objects that act as 'keywords' for an object. A Keyword Index will return any objects that have one or more keywords specified in a search query." Does this mean you have to specify (where) what the predetermined keywords are? > Can only suggest mailing Chris P and asking him, as he was last to do some > serious routing in the Catalog code... > > > Any clues here? > > Sorry I couldn't be more help... Thanks for the info. -- Tim Cook, President -- Free Practice Management,Inc. | http://www.FreePM.com Office: (901) 884-4126 "Nearly everyone will lie to you given the right circumstances." - Bill Clinton

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RE: [Zope] form question
by Farrell, Troy 22 Jan '01

22 Jan '01

Hmmm. Sounds like you need to start with a Forms tutorial: http://hotwired.lycos.com/webmonkey/99/30/index4a.html Then, the Smarter Forms tutorial: http://www.zope.org/Members/jules/smarterforms_html hope that helps. Troy -----Original Message----- From: Oliver Vecernik [mailto:vecernik@aon.at] Sent: Monday, January 22, 2001 5:23 AM To: zope(a)zope.org Subject: [Zope] form question Hi all, I'm a newbie to Zope and Python. Nevertheless I'd like to start with it. I'm designing an application gathering data with forms. Navigation should be done with Prev and Next buttons. As long as I'm not leaving the form data should be entered, processed and the *same* or another form should be displayed, depending on input of the user. So far I'm able to gather data, store them in a database, but can anybody give me a clue or point me to some docs how to control which form should be displayed next? It should depend on users input of let's say a text field. Oliver _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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zope@zope.org
by FR Chalaoux 22 Jan '01

22 Jan '01

Hi, I installed Zope-2.2.5.src on bsdi 3.0, with Python 2.0. Compilation runned fine but when I run ./start I obtain the followinfg error : bash-2.02$ ./start 'import site' failed; use -v for traceback Traceback (most recent call last): File "/usr/local/apache/htdocs/commercial/advl/zope/Zope-2.2.5-src/z2.py", line 283, in ? import os, sys, getopt, string ImportError: No module named os start file ===== #! /bin/sh reldir=`dirname $0` PYTHONHOME=`cd $reldir; pwd` export PYTHONHOME exec /usr/local/bin/python \ $PYTHONHOME/z2.py \ -D "$@" Suggestions? Bye, FR

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REMOTE_ADDR
by Marcus Mendes 22 Jan '01

22 Jan '01

Hello, Where can I find (and use) the variable REMOTE_ADDR? I've a python function that deal with REMOTE_ADDR, but I've got the IP address's Zope Server Machine. I looked at Z2.log and find the same IP, ie. the address's Zope Server Machine. I need the remote address. I'm using SiteAccess and Zope 2.2.4 on Linux. I don't understand ... Thanks in advance. Marcus Mendes

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Get an object's owner
by Gilles Durys 22 Jan '01

22 Jan '01

Hello, I'd like to now how to retrieve an object's owner id so I can use display it in a DTML document. -- Gilles Durys

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RE: [Zope] Object DB versus Relational DB
by Farrell, Troy 22 Jan '01

22 Jan '01

Maybe you need an ORDB (Object-Relational DB) like postgresql. PGSQL supports Inheritance: http://www.postgresql.org Troy -----Original Message----- From: Luciano Ramalho [mailto:luciano@hiper.com.br] Sent: Monday, January 22, 2001 6:12 AM To: Tom Deprez Cc: Rik Hoekstra; zope(a)zope.org Subject: Re: [Zope] Object DB versus Relational DB ZODB with Data.fs is optimized to fetch data. Inserts or updates have a lot of overhead. It's the price we pay for the excellent versioning features. Therefore, when the are many we have been avoinding ZODB even when the problem domain calls for an OODB We have implemented a highly hierarchical database for a Yahoo-like directory using a recipe found in the book SQL for Smarties, by Joe Celko, ISBN 1-55860-323-9 (see Chapter 26 - Trees). Celko's solutions allow for a hierarchy with unlimited levels and, amazingly, it does not require sub-selects or any other construct unsupported by MySQL. The rest of the book is filled with solutions to problems that test the limits of the relational database model. Best regards, Luciano Ramalho Tom Deprez wrote: > > > A starting point is http://www.zope.org/Members/anthony/sql_vs_ZODB > > Reading this text is exactly the problem I'm having. Unfortunately, it > doesn't give much examples. > I hope somebody can give me some answers on my question : > > The problem I'm facing is the following. I've got a lot parent-child > relationships -> OODB > But, I also need to perform some queries on these records and link some to > each other -> more RDB. > > I'm not sure which way to follow. A hybrid solution isn't the best one, I > think, because then you do twice the same work. ie. You've to create the > parent-child relationship in the OODB (the site structure) and in the RDB > (to perform correct queries). > > The RDB solution is possible, but since I need lots of parent-child > relationships not the best one. > > The OODB is probably the best. However, this implies several implementation > problems I don't know how to solve at the moment. Can somebody elaborate on > the following questions? Thanks in advance. > > Assume the following : > > Group1 > SubGroup1 > SubGroupA > Problem1 > Examination1 > Equipment1 > Paremeters > Equipment2 > Parameters > Examination2 > > .... > > Campus1 > Room1 > Equipment1 > Equipment2 > Room2 > > .... > > Now, if a person is creating a new equipment in Examination2. How can I > show it all the avalailable equipments in Campus1? So this person can choose > from it and create it in the examination2 folder? In an OODB environment? > > If a person is browsing in Room1 and wants to get all the examinations which > will be performed on Equipment1. How do I create such a query in OODB? (Or > even further, the person wants to see all the examinations done on > equipment1, but only with Group=Group1 and SubGroup=SubGroup1 > > How can this be done in Zope? > > Thanks in advance, > > Tom. > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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RE: [Zope] zope@zope.org
by Farrell, Troy 22 Jan '01

22 Jan '01

Is it possible this is another issue with 2.0 (I'm no python guru :)? FR, Zope 2.x is designed to work with Python 1.52. Troy -----Original Message----- From: Oleg Broytmann [mailto:phd@phd.pp.ru] Sent: Monday, January 22, 2001 10:32 AM To: FR Chalaoux Cc: zope(a)zope.org Subject: Re: [Zope] zope(a)zope.org On Mon, 22 Jan 2001, FR Chalaoux wrote: > I installed Zope-2.2.5.src on bsdi 3.0, with Python 2.0. Compilation > runned fine but when I run ./start I obtain the followinfg error : > > bash-2.02$ ./start > 'import site' failed; use -v for traceback > Traceback (most recent call last): > File > "/usr/local/apache/htdocs/commercial/advl/zope/Zope-2.2.5-src/z2.py", > line 283, in ? > import os, sys, getopt, string > ImportError: No module named os Either you have broken python installation, or python is installed somewhere in a non-standard location, or your permissions do not allow you to import libs from the user you are running Zope ("nobody"?) Oleg. ---- Oleg Broytmann http://www.zope.org/Members/phd/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN. _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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Zope 2.3.0b2 bug #2
by Oleg Broytmann 22 Jan '01

22 Jan '01

It is not exactly bug, but VERY unplesant misfeature: Zope now sends all HTML in management screens with <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> This is WRONG way of doing! Please stop it and don't do it :) Meanwhile - where I can turn this off? 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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