November 2000 - Zope

Job offering - England
by Erik Enge 09 Nov '00

09 Nov '00

Zopistas, wanna get paid? :) Zope/Python programmer wanted to work with one of our clients in England. A team from Thingamy (<URL:http://www.thingamy.com>) have for some months now been developing a Zope application for a client in England. The client's main work is resourcing (ie. matching candidates and clients and typing up contracts). Our client has, of course, got access to the source code - and thus they want to continue developing the application after they recieve it from us. We need a person that can travel to their offices once a week, and spend approximately 2 days a week continuing development of the application (the amount of work depends highly on what our client wants done). The application is written in Python, the interface is in XHTML 1.0 STRICT. You should be an experienced Python programmer, and should have spent your time in the Zope source code :-). I will take you through the source code, and will also be your contact person when questions about the source code, class structure or anything of that sort arrises. It would be desirable if you could overlap with us (ie. start coding one month before we stop, so there would be some feeling of consitency - and it would also give you a great opporunity to ask (nearly) all questions). * Start date: within 2 months (room for discussion). * Salary: up for discussion. If this sounds interesting (or if you want to ask questions) please email me. (Please note that this is not a fulltime job, so it would be benefitial if you lived near their offices and had access to other work aswell. Their offices are 40 minutes by train from Waterloo station.) Thanks :)

1 0

Uploading textfiles into Zope using LoadSite
by Jean Jordaan 09 Nov '00

09 Nov '00

Hi Vimmers I'd like to do a show-and-tell about how I - uploaded a bunch of textfiles into Zope (by making use of 'load_site.py') - and turned them into ZClasses (using a DTML method). This is not a flashy "here's how to do it" piece -- it's really a request for advice on how to do things better, and a step-by-step from a relative beginner, for other relative beginners. OK, to business. I used 'loadsite-1.4.0-test.tgz'. From the README:: LoadSite version 1.3 Based on load_site.py from Digital Creations Modified by Oleg Broytmann <phd2(a)earthling.net> Modified by Itamar Shtull-Trauring <itamars(a)ibm.net> wxLoadSite uses code written by Amos Latteier, and uses Fredrik Lundh's xmlrpclib. (Is there a newer version available?). I started from a flattext database, with a structure like: ID|penname|pensurname|notes|title|vol|nr|year|printed|text|name|surname|date |nick|email That is: 15 fields, pipe-delimited, containing different kinds of data (strings, multiline text, dates, email, ...). Here is a shortened sample record: 66|Zandra|Bezuidenhout||A room of my own||||Nee|A room of my own~nl~- garden view,~nl~computer -,|||1998/7/23|zandra|zbez(a)netactive.co.za I wanted to get the individual fields into Zope: for example, as properties of the DTML Documents that LoadSite creates. To do this, I had to hack on LoadSite slightly. I noticed that it found the body attributes and aggregated all of them into one property (in 'htmlutils.py'). I guessed that I could import these attributes as properties. To do so, I made the following changes to 'htmlutils.py'. Originally:: *** 95,98 **** if not self.seen_startbody: self.seen_startbody = 1 self.accumulator = "" self.bodyattribs = join_attrs(attrs) I changed this as follows:: --- 95,99 ---- if not self.seen_startbody: self.seen_startbody = 1 self.accumulator = "" # njj: self.bodyattribs = join_attrs(attrs) self.bodyattribs = attrs This way, bodyattribs is not changed into a string like 'name="value" [...]', but remains a dictionary { penname:Zandra, pensurname:Bezuidenhout }. Then I had to change how they were fed into Zope. To do this, I changed 'Uploader.py' from:: *** 113,115 **** if bodyattribs: self.call(object.manage_addProperty, id="loadsite_bodyattribs", type="string", value=bodyattribs) To:: --- 113,128 ---- if bodyattribs: # njj: start for attrname, attrvalue in bodyattribs: if attrname == 'text' or attrname == 'notes': self.call(object.manage_addProperty, id=attrname, type="text", value=attrvalue) elif attrname == 'date': self.call(object.manage_addProperty, id=attrname, type="date", value=attrvalue) else: self.call(object.manage_addProperty, id=attrname, type="string", value=attrvalue) # njj: end # njj: self.call(object.manage_addProperty, # njj: id="loadsite_bodyattribs", type="string", value=bodyattribs) This works :) Unfortunately, it's a hardcoded hack that will only work for this particular database. To be useful, you should be able to tell LoadSite to snarf the attributes of <meta> tags as properties, paying attention to the ':type' convention of indicating the format of data. But I don't understand sgmllib well enough to do that .. I ran the flattext database through a pre-processor ('http://www.htmlpp.org', for the curious) to get files (named '1.html' and so on) that look like this:: <HTML><HEAD> <TITLE>A room of my own -- Zandra Bezuidenhout</TITLE> </HEAD> <body ID="66" penname="Zandra" pensurname="Bezuidenhout" notes="" titel="A room of my own" vol="" nr="" year="" printed="Nee" text="A room of my own - garden view, computer -," name="" surname="" date="1998/7/23" nick="zandra" email="zbez(a)netactive.co.za" > </BODY></HTML> When uploaded by LoadSite, this creates DTML Documents with 15 properties each. Now to get them into ZClasses. Here is the DTML Method that does this:: <dtml-with DTML_texts> <dtml-call "manage_addFolder('ZClass_texts')"> <dtml-in "objectItems(['DTML Document'])"> <dtml-call "REQUEST.set('ID' , ID )"> <dtml-call "REQUEST.set('penname' , penname )"> <dtml-call "REQUEST.set('pensurname' , pensurname )"> <dtml-call "REQUEST.set('notes' , notes )"> <dtml-call "REQUEST.set('title' , title )"> <dtml-call "REQUEST.set('vol' , vol )"> <dtml-call "REQUEST.set('nr' , nr )"> <dtml-call "REQUEST.set('year' , year )"> <dtml-call "REQUEST.set('printed' , printed )"> <dtml-call "REQUEST.set('text' , text )"> <dtml-call "REQUEST.set('name' , name )"> <dtml-call "REQUEST.set('surname' , surname )"> <dtml-call "REQUEST.set('date' , date )"> <dtml-call "REQUEST.set('nick' , nick )"> <dtml-call "REQUEST.set('email' , email )"> <dtml-let folder_str=nick> <dtml-var folder_str> <dtml-let id_str="_.string.split(_['sequence-key'], '.')[0]"> <dtml-var id_str> <dtml-with "_.getitem('ZClass_texts')"> <dtml-try> <dtml-call "_.getitem(folder_str)"> <dtml-except KeyError> <dtml-call "manage_addFolder(folder_str)"> </dtml-try> <dtml-with "_.getitem(folder_str)"> <dtml-call "REQUEST.set('id', id_str)"> <dtml-with "manage_addProduct['TextProduct']"> <dtml-call "Text_add(_.None, _, NoRedir=1)"> </dtml-with> </dtml-with> </dtml-with> </dtml-let> </dtml-let> </dtml-in> </dtml-with> It iterates over all the DTML Documents in the 'DTML_texts' folder, and creates a 'ZClass_texts' folder inside it. If no folder 'nick' exists, it creates one; and inside the 'nick' folder, it creates 'Text' ZClasses named '1', '2' and so on (discarding the '.html' bit). In this way, each author's texts are collected in their own folder as ZClasses. Nice! The author folders will probably become ZClasses subclassing 'ZClasses: ObjectManager'. TODO: for each author, a user with default password should be created. An author should have permissions to administer their texts. I hope someone finds this interesting! Regards, Jean Jordaan

1 0

Re: [Zope] RE: Wampum Generator
by Oliver Bleutgen 09 Nov '00

09 Nov '00

> It's a Winzip thing. I'll bet wampum generator is a .tar file, just rename > it to a .tgz file and it should open just fine. Just some thoughts/guesses: I'll bet Kathy uses Internet Explorer. Don't know about Netscape, but it becomes more and more difficult to get IE _not_ to try to be "smart" about any file you download. In this case I think there's some kind of transparent mechanism which kicks in and tries to transparently decompress files of type application/x-tar. Guess it's a helper for compressed vrml .wrl.gz (or similar) files. In this case renaming to .tgz works, but I think I saw the same mess the other way around when IE didn't remove the .gz suffix but nonetheless transparently decompressed the file. These things are extremely annoying when dealing with relativly unexperienced clients who, say, just want to _download_ an .avi file with a left-klick. MS has implemented a lot of magic there, AFAIK IE even tries to guess the filetype by its content in some cases and then ignores each and every http-header which might suggest otherwise. Adding "Content-Disposition: attachment" as a http-header seems to help (for the .avi case). cheers, oliver

1 0

Going Virtual InterBase Database Adapter --gvibDA-- Problems
by Claudio Biasiolo 09 Nov '00

09 Nov '00

Hi I'he tried to use gvibDA, all right until I tested with Python Python returned me the message: /\ Python 1.6 (#2, Nov 8 2000, 15:56:49) [GCC egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)] on linux2 Copyright (c) 1995-2000 Corporation for National Research Initiatives. All Rights Reserved. Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam. All Rights Reserved. >>> import gvib Traceback (most recent call last): File "<stdin>", line 1, in ? File "gvib.py", line 46, in ? import gvibBase ImportError: ./gvibBase.so: undefined symbol: Py_Realloc >>> # pwd /usr/local/lib/python1.6/gvib # \/ I use a linux box with Zope2.2.2 Python1.6 on rh6.2 I don't know Python so anyone who can help me? Thank you in advance Claudio Biasiolo Web Developer www.veniceplaza.net Padova, Italy

1 0

Re: [Zope] Cloning a ZClass-Instance
by brocken22＠gmx.de 09 Nov '00

09 Nov '00

Thank you Dieter for your reply, but yout suggestion doesn't solve the problem. This is the traceback: "The object 973677459 does not support this operation " This means to me that x is an instance. That's my script-> <dtml-in "objectValues(['news'])"> <dtml-let x="_.getitem('sequence-item')"> <dtml-if "Jetzt.isCurrentDay()"> <dtml- call "manage_clone(x,'versuch', [REQUEST])"> Kopiert!!! <dtml-else> <dtml- var text> </dtml-if> </dtml-let> </dtml-in> -- Sent through GMX FreeMail - http://www.gmx.net

3 2

Re: Yihaw product Catalog error [Errata]
by peter bengtson 09 Nov '00

09 Nov '00

I was a fool not to see that. Tired I guess. The link to the README was though somewhat hidden under "Release Information". Sorry for the spamming Zopistas. ----- Original Message ----- From: "Søren Roug" <Soren.Roug(a)EEA.eu.int> To: "'peter bengtson'" <peter(a)grenna.net> Sent: Thursday, November 09, 2000 9:59 AM Subject: RE: Yihaw product Catalog error > You must have a Z Catalog object in the top folder with the name "Catalog". > It's clearly spelled out in the README. > > || -----Original Message----- > || From: peter bengtson [mailto:peter@grenna.net] > || Sent: Wednesday, November 08, 2000 20:47 > || To: soren.roug(a)eea.eu.int > || Cc: zope(a)zope.org > || Subject: Yihaw product Catalog error > || > || > || I have installed the Yihaw product, because I am going to > || use the Contact > || class. > || The changes I have made to the ZClass are minor. I have only > || changed the > || Property Sheet of Contact and the appropriate changes to > || index_html and > || Contact_addForm. > || > || I can add a contact, but after having done that and I click the newly > || created Contact I get a NameError. > || > || Error Type: NameError > || Error Value: Catalog > || > || How to solve this? > || > || > || > || Regards, Peter > || > || I have NT4, Zope 2.2.2 > || > || Traceback (innermost last): > || File > || C:\PROGRA~1\Zopesite\lib\python\ZPublisher\Publish.py, line 222, in > || publish_module > || File > || C:\PROGRA~1\Zopesite\lib\python\ZPublisher\Publish.py, line 187, in > || publish > || File C:\PROGRA~1\Zopesite\lib\python\Zope\__init__.py, line 221, in > || zpublisher_exception_hook > || (Object: CatalogAware) > || File > || C:\PROGRA~1\Zopesite\lib\python\ZPublisher\Publish.py, line 171, in > || publish > || File C:\PROGRA~1\Zopesite\lib\python\ZPublisher\mapply.py, > || line 160, in > || mapply > || (Object: manage_baseproperties) > || File > || C:\PROGRA~1\Zopesite\lib\python\ZPublisher\Publish.py, line 112, in > || call_object > || (Object: manage_baseproperties) > || File C:\PROGRA~1\Zopesite\lib\python\OFS\DTMLMethod.py, > || line 172, in > || __call__ > || (Object: manage_baseproperties) > || File > || C:\PROGRA~1\Zopesite\lib\python\DocumentTemplate\DT_String.py, line > || 528, in __call__ > || (Object: manage_baseproperties) > || File > || C:\PROGRA~1\Zopesite\lib\python\DocumentTemplate\DT_In.py, line 633, > || in renderwob > || (Object: Catalog(meta_type='Yihaw Pointer')) > || File > || C:\PROGRA~1\Zopesite\lib\python\DocumentTemplate\DT_Util.py, line > || 337, in eval > || (Object: Catalog(meta_type='Yihaw Pointer')) > || (Info: Catalog) > || File <string>, line 0, in ? > || NameError: (see above) > ||

1 0

[JOB] Zope Job in France !
by Olivier Deckmyn 09 Nov '00

09 Nov '00

Jeune Start-up dans le monde de l'internet recherche développeurs/chefs de projet Internet / Zope. Diplômé BAC+2/5 (ingénieur ou universitaire), vous avez une première expérience (éventuellement un stage significatif) en développement d'applications avec Zope. Connaissant bien HTML et HTTP, vous maîtrisez parfaitement au moins un langage de programmation objet (Python, Delphi, Java, C++, ...). Vous avez une connaissance de UML et de l'objet en général. Une connaissance de XML et LDAP serait un GROS plus. Vous êtes rigoureux et organisé. De plus, vous avez une bonne connaissance des SGBDR et êtes capable de lire et rédiger des documents en anglais. Votre mission : Vous participez à la conception, au développement et à la gestion du site. Selon votre potentiel, vous évoluerez au sein de la société vers de plus amples responsabilités notamment en prenant une part de plus en plus importante dans le déroulement des projets. Expérience : N'hésitez pas à joindre à votre candidature tout document pouvant démontrer vos compétences (ex : URLs de vos réalisations) Profil : Vous êtes rigoureux et organisé, dynamique et passionné et prêt à travailler dans une équipe jeune et très ambitieuse. Ce poste, basé à Paris-La Défense, est à pourvoir immédiatement dans le cadre d'un CDI. Rémunération proposée : 210KF à 280KF selon profil et expérience. Contact : Merci d'adresser CV et une lettre de motivation à : olivier.deckmyn(a)experts-md.com Olivier Deckmyn, CTO eXperts-MD.com

1 0

ZMethod and language variants
by Hamish Lawson 09 Nov '00

09 Nov '00

> Considering that there aren't (yet) other language variants, and that > I would usually use the restricted kind, I would normally just > say "ZMethod". Only if there were some potential confusion would I > say "Unrestricted zmethod", or the full title. My proposal that ZMethod be used generally for anything that Zope regards as a method would mean that there already are other language variants, such as DTML ZMethod and SQL ZMethod. Hamish ____________________________________________________________ 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

1 0

Python Zope Method as option for renamed Python Method?
by Hamish Lawson 09 Nov '00

09 Nov '00

In the poll currently underway on renaming options for Python Methods, the most popular choice so far is to leave the name as it is. It could just be because people don't see enough benefit in changing what's already there, but I think it may be that people actively feel that the term 'method' captures some technical essence. However, we still have the problem of disambiguating between a method in Zope's eyes and a method in the implementation language. How about calling anything that Zope regards as a method a Zope Method? That would then give us Python Zope Method, Perl Zope Method, DTML Zope Method, SQL Zope Method, etc. Is it too late to add the option for Python Zope Method to the poll? 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

4 3

RE: Wampum Generator
by Kevin Smith 09 Nov '00

09 Nov '00

It's a Winzip thing. I'll bet wampum generator is a .tar file, just rename it to a .tgz file and it should open just fine. Kevin Smith 99hats.com ---------:You said:-------------- Hi, Has anyone used this before? I am a newbie and would like to play around with it. I have the how-to docs. But my problem starts at the download! When I try to open it with winzip I get this error: Error reading header after processing 0 entries. I have successfully untared other files with winzip. I have dowmloaded it 4 times to make sure it wasnt just corrupted. Is there another place that I can download it? Also any tips on install/use are welcomed! Thank you. ===== Kathy Hester to feel powerful often to act powerful sometimes to overpower others seldom to share power whenever possible - unknown

1 0