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ZSQL methods & results lists
by Garry Steedman 23 Jul '01

23 Jul '01

Hello all, i have a ZSQL method called get_clients. i want to put the results of this method into a list called results. if i then slice that list (using the variable batch_size) i want to create a new list called results_temp which i then use for displaying the result set. here is my code: <dtml-unless batch_size> <dtml-call expr="REQUEST.set('batch_size',20)"></dtml-unless> <dtml-unless skey> <dtml-call expr="REQUEST.set('skey', 'NOM')"></dtml-unless> <dtml-unless rkey> <dtml-call expr="REQUEST.set('rkey', '')"></dtml-unless> <dtml-unless results> <dtml-call "REQUEST.set('results', [])"> <dtml-in get_clients sort=NOM> <dtml-call"results.append(_['sequence-item'])"> </dtml-in> </dtml-unless> <dtml-if expr="batch_size!=20"><dtml-var batch_size> <dtml-call "REQUEST.set('results_temp', [results[:batch_size]])"> <dtml-else>20 </dtml-if> i am a bit stuck with the following issue: i cant seem to call the field names associated with the ZSQL method. i think the problem is the way im using sequence-item, but i cant find a workaround: anyone have any suggestions? cheers, Garry +-------------------------------------------+ Garry Steedman mailto:gs@styrax.com Styrax Associates http://www.styrax.com/ "The Good Man has no shape." +-------------------------------------------+

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IOError: [Errno 2] No such file or directory:'zope/2-4-0/lib/python/Products/ZMySQLDA/misc_/ZMySQLDA/conn'
by Norman Khine 23 Jul '01

23 Jul '01

Hello, I just instaled 2.4.0, and also installed ZMySQLDA which installed without any problems, then I checked the installation and everything worked great, until I installed the latest checkout for the CMF, then upon restarting the zope server I got the following error: IOError: [Errno 2] No such file or directory: '/usr/home/dsuk5/zope/2-4-0/lib/python/Products/ZMySQLDA/misc_/ZMySQLDA/conn ' ZMySQLDA is not shown to be broken, BUT and I can still connect to the databases I setup prior to my adding of the CMF, BUT when I try to add additional Databases, I get this traceback: Site Error An error was encountered while publishing this resource. Debugging Notice Zope has encountered a problem publishing your object. Cannot locate object at: http://www.localhost:8080/Tutorials/manage_addProduct/ZMySQLDA/manage_addZMy SQLConnection Traceback (innermost last): File /usr/home/dsuk5/zope/2-4-0/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/home/dsuk5/zope/2-4-0/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/home/dsuk5/zope/2-4-0/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook File /usr/home/dsuk5/zope/2-4-0/lib/python/ZPublisher/Publish.py, line 162, in publish File /usr/home/dsuk5/zope/2-4-0/lib/python/ZPublisher/BaseRequest.py, line 370, in traverse File /usr/home/dsuk5/zope/2-4-0/lib/python/ZPublisher/HTTPResponse.py, line 557, in debugError NotFound: (see above) And this is the traceback I get from the command line upon restarting the ZServer 2001-07-23T21:06:25 ERROR(200) Zope Couldn't install ZMySQLDA Traceback (innermost last): File /usr/home/dsuk5/zope/2-4-0/lib/python/OFS/Application.py, line 657, in install_product (Object: ApplicationDefaultPermissions) (Info: ZMySQLDA) File /usr/home/dsuk5/zope/2-4-0/lib/python/Products/ZMySQLDA/__init__.py, line 105, in initialize File /usr/home/dsuk5/zope/2-4-0/lib/python/App/ProductContext.py, line 258, in registerClass File /usr/home/dsuk5/zope/2-4-0/lib/python/App/ImageFile.py, line 110, in __init__ IOError: [Errno 2] No such file or directory: '/usr/home/dsuk5/zope/2-4-0/lib/python/Products/ZMySQLDA/misc_/ZMySQLDA/conn ' Any ideas Many thanks Norman zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz zz/********/z/****\zzz|****\*\zz|*******|z z/^^^^^^^^/z/******\zz|*^^^^|*|z|*|^^^^^|z norman khine zzzzzz/**/z|**/^^\**|z|*|zzz|*|z|*|zzzzzzz mailto:norman@khine.net zzzzz/**/zz|*|zzzz|*|z|****/*/zz|*****|zzz purley z/******/zz|*|zzzz|*|z|*|^^zzzzz|*|^^^|zzz UK zzZ/**/zzzz|**\^^/**|z|*|zzzzzzz|*|zzzzzzz zz/******/zz\******/zz|*|zzzzzzz|*|*****|z z/^^^^^^/zzzz\^^^^/zzz|^|zzzzzzz|^^^^^^^|z zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

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Creating a Gum Product
by Cerio Gianluca 23 Jul '01

23 Jul '01

I wish to create dinamically a Zope Gum Product. I use the "<dtml-call "manage_add_gum(id, title, ' ',' ')"> statement, but it doesn't work. Someone have already done it? Someone have some solution. Thanks Gianluca P.S. Please put my address as cc if you write back to the ML

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FYI: DC -> ZC, plus 2.4 released
by Hamish Lawson 23 Jul '01

23 Jul '01

Paul Everitt wrote: > The name change has the fortunate side effect of letting us be > referred to as ZC instead of DC, which almost sounds the same if you > speak with a lisp. :^) I tried, but I just couldn't get zed-cee to sound like dee-cee. ;-) Hamish Lawson Small group of almost-American-speaking islands in NW Europe ____________________________________________________________ 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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Newbie: using html in zope
by Tina Poole 23 Jul '01

23 Jul '01

Dear All We are adding HTML files as documents to our zope site. The files are using the default css stylesheet for our site. This is working lovely as we single-source from FrameMaker and deliver in a number of formats and there are a few hundred files already placed in our site. The only problems are - table widths: The tables stretch across the page and right off the screen (past the header). The text wraps correctly at the end of the page but the table cell just keeps on going. This makes the file useless to print (they are for reference and we would like them to be able to print out). I really do not want to have to specify exact coloum widths but want the tables to be 100% of the screen. - font sizes: In the style sheet I have added a number of extra styles. Everything such as, indentation, colour, font style, etc, is being reflected in the html files when displayed except the font size. Everything is the same size. I would also like to hear from anyone using Zope as a documentation library like us and how they handled difference file types such as Word, PDF etc. Any help would be greatly appreciated, tina poole MineSTAR Mincom Limited Brisbane, Australia _________________________________________________ This transmission is for the intended addressee only and is confidential information. If you have received this transmission in error, please delete it and notify the sender. The contents of this E-mail are the opinion of the writer only and are not endorsed by Mincom Limited unless expressly stated otherwise.

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Re: [Zope] ZClass and Product migration issues
by Mark James Adams 23 Jul '01

23 Jul '01

Hi, Tom: On Monday, July 23, 2001, at 10:32 AM, "Tom Cameron" <tom(a)mooball.com> wrote: > I am starting to experiment with ZClasses, and hopefully eventually > Products > in Python. > > I am wondering how easy it is to migrate at a later date. I asked a similar question a while ago. Here is the response I got from"Joachim Werner" <joe(a)iuveno-net.de>: > And while I'm on that topic, what are the benefits/tradeoffs > between using the ZMI to define products and using Python? > > Some of the main reasons to use Python-based products are > - much better performance (ZClasses just "emulate" object behaviour; > e.g. > all sub-objects are actually just put into propertysheets) > - being able to do much more things (e.g. calling Python libraries like > the > Python Imaging Library etc.) > - avoiding problems with ZClasses (e.g. acquisition works not quite as > advertised, multiple inheritance: base classes can only be defined at > creation time and not changed later, inheritance does not work properly > for > propertysheets defined in ZClass-type base classes, ...) > > Also, if I decide to go with Python based products, is there any easy > way to turn a ZClass defined though the ZMI into a Python product? I'm > not to worried about retyping code, but I've defined some fairly large > propertysheets that would be annoying to recreate if I were to start > from scratch. > > It is not extremely hard to write a ZClass-to-Python code converter. But > AFAIK there is no such beast yet. > > If you don't need the extra power Python gives you, you might be better > off > with them. Your programming will be magintudes faster using ZClasses > (while > the resulting code will be much slower ...), provided that you don't > hit the > limitations of ZClasses. > > We at iuveno are facing similar problems and are working at tools for > making > Zope product creation much easier. Most of it is not ready for use yet. > But > I'd ask you to tell me what you would expect from a "better Zope product > definition framework" or whatever you'd call it. > > Just to give you an impression about our ideas, here are some of them: > > - Definition of REAL Python-based classes over the web (like ZClasses); > everything I mention below should also work with these new over-the-web > classes > > - Being able to define template-like classes (like "Meta-ZClasses"); > e.g. > you'd have a predefined "Persons" ZClass and could use it to derive a > special "Co-Workers" or "Customers" class by just adding/changing stuff > > - Wizards for the basic tasks (like creating a new ZClass; you'd not > have to > click through all the definition tabs after the basic creation of the > ZClass); the wizards framework exists already > > - Defining basic "components" like data class, presentation class, etc. > > - A forms builder framework (with the help of Martijn Faassen's > Formulator, > this part is quite advanced already) > > - being able to define objects from UML tools > > - roundtrip engineering (from UML tools etc. to Zope and back); there > already are tools to get ZClass structures into the Object Domains UML > software ... > > - providing a lot of frequently needed basic modules to the > programmer/power > user; the Content Management Framework is a basic attempt to do this > > > Cheers > > Joachim > In any case I am expecting that the Product will be continually > evolving. > How are instances affected when new versions of products are installed? > Instances will use your new class definitions. However, new member variables that you add will not be defined in current instances. The trick is to define default values for new variables as class variables, and override them them with self.new_variable = new_value whenever you update them. I switched over to Python products after creating only a couple of ZClasses. While getting off the ground with ZClasses is a lot easier, in the long run you'll be better off with Python products (depending on your level of comfort with Python). If you are interested in getting started with Python classes, I highly recommend Max M's A very minimal Product (http://www.zope.org/Members/maxm/HowTo/minimal_01/) and A Minimal Product - The Sequel (http://www.zope.org/Members/maxm/HowTo/minimal_02/) Once you've gone through these tutorials, read chapter 3 (http://www.zope.org/Documentation/ZDG/Products.dtml) of the Zope Developer's Guide (http://www.zope.org/Documentation/ZDG) Assuming you don't have to many methods in your ZClass, converting isn't to hard to do by hand. Just turn all of your Python scripts into methods and each of your DTML documents/methods into files in a 'dtml' folder inside your product folder. Then import them using DTMLFile (Max M. shows you how. Don't forget the .dtml extension on your DTML files!) As far as I'm aware, changing a ZClass over to Python will break all of your existing instances, unfortunately. You could write a script to convert them, blah, blah. But who wants to do that? It's better to do it in Python in the first place (but get to know ZClasses first, just don't put to much work into them). One thing I like about Python classes is the ability to add custom Security Declarations (i.e., defining custom permission names; the Products chapter of the Zope Developer's Guide gets into this). Good luck! -- Mark James Adams mark(a)raysend.com

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Using Image name like "foo.gif" w/o painful <dtml-with> problems?
by Joel Burton 23 Jul '01

23 Jul '01

Our site currently has images that have no .gif or .jpg at the end of their ids. We're starting to use a clickthrough-analysis program that tracks site usage, and assumes that all '.gif' and '.jpg' file are graphics. Of course, to track site usage, it's important for the analysis program to distinguish graphic requests from page requests. We planned to rename all of our image file to __.gif, but because of the overloaded meaning of the "." (as both separting objects & methods/attributes, and as a file extensionn), it makes for very ugly DTML -- something like: <dtml-var "images.randompic.tag(hspace=10)"> has to become <dtml-with images> <dtml-with randompic.gif> <dtml-var "tag(hspace=10)"> </dtml-with> </dtml-with> Or <dtml-var "images['randompic.gif'].tag(hspace=10)"> which is better, but still as nice as the original. Of course, we could make our own img tags, like: <img src="/images/randompic.gif" hspace=10> but then we lose the automagic titles, height, width, etc. that Zope can provide. On the plus side, having graphic files with "ordinary" extensions will let us work a bit easier w/WebDAV and FTP, as some programs always expect file to have these extensions. So: 1) Is there any way to call a picture within a folder without the twice-nested call above? Any workarounds? 2) Any other ideas on how to handle this? How do other sites deal with this? Any advice/help would be appreciated. -- Joel Burton <jburton(a)scw.org> Director of Information Systems, Support Center of Washington

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./start not finding the correct Python
by Seamus M. O'Keefe 23 Jul '01

23 Jul '01

just installed Python 2.1.1 as well as Zope 2.4.0. I've run Zope 2.4.0's "w_pcgi.py" script specifying python 2.1.1, however when I run the start script, it tells me I'm only using Python 2.0. Running "python -V" returns Python 2.1.1. What am I doing wrong? ------------------------------------------ Seamus M. O'Keefe Senior Web Developer/IT Services Manager Rare Earth Interactive Design, Inc. http://www.rareearthdesign.com/ ------------------------------------------

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Re: [Zope] install problem mailing list?
by reinoud＠xs4all.nl 23 Jul '01

23 Jul '01

On Mon, 23 Jul 2001 15:08:48 -0500, you wrote: >Hi, > >I am running the latest FreeBSD4.3-STABLE and just installed the >port of Zope. zope/Zope2.3.3 and zope/Hotfix_2001-05-01 > >I see it running by doing a "ps -ax", actually two copies, one as >root and one as nobody: >"/usr/loca/bin/python2.1 /usr/local/www/Zope/z2.py -D" > >First of all, I can find no docs on why two copies are running. > >Also, I get "Unable to connect..." to http://localhost:8080/manage. Can you doublecheck that it is running on the port you suspect it to? On my FreeBSD box the command sockstat gives reinoud@spoetnik$ sockstat USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS [...] nobody python2. 18738 13 tcp4 192.168.1.11:8080 *:* nobody python2. 18738 14 tcp4 192.168.1.11:8021 *:* if that works, try telnet locahost 8080 and enter the command GET / you normally get a bunch of HTML back, but maybe some error message (otherwise try looking in /var/log/messages or the Zope output (I guess /usr/local/www/Zope/var/zope-output if you installed it from the ports >I thought Zope was supposed to run by itself, seperate of Apache? >Just FYI, I killall httpd and restarted everything to see if Zope would >run standalong without apache. Yes, the default installation is without Apache. It is possible 'behind' Apache, but that takes some configuration >I know that you guys are working on revamping the docs. It is >greatly appreciated. In the meantime, is there an install problem >list I can subscribe to? I can't find one. So should I post install >problems here? > >Let me know what's up. Your whole organization's configuration is >awefully confusing, not to mention the docs themselves. I hope >you can understand my newbie frustration with your stuff and can >provide a link to some info that could help me figure out why I >followed the instructions, got Zope installed, but cannot connect to >it to do anything with it. Any help appreciated for this lost zope >soul. I printed out the Zope book and read it. see http://www.zope.org/Members/michel/ZB/ for links to various formats. It should be available by now at your local computer book store. -- __________________________________________________ "Nothing is as subjective as reality" Reinoud van Leeuwen reinoud(a)xs4all.nl http://www.xs4all.nl/~reinoud -> when replying to a mailinglist mail, please do <- -> *NOT* cc: me as well. If I read the list I will <- -> recieve the reply as well! <- __________________________________________________

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programmatically renaming multiple objects
by Dirk Schneider 23 Jul '01

23 Jul '01

I am looking for a way to change the id's of multiple objects by a method. I have a DTML-Document that is filled with objects (paragraphs) by <dtml-in>. What I want to do is to be able to insert a new object by a web interface at any place in the list, not only at the end. When I want to insert the new object in the middle, I have to rename all objects that follow. Does someone know a way how to do it? Help would be great. Thanks Dirk

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