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by Dirk Datzert 07 Jan '02

07 Jan '02

Hi, need a hint! Found this in Mail-Archive (Zope,Acrobat, Range-Problem): Update of /cvs-repository/Zope/doc In directory cvs.zope.org:/tmp/cvs-serv29434/doc Modified Files: Tag: Zope-2_4-branch CHANGES.txt Log Message: Fix HTTP Range support; don't concatenate adjacent byte ranges, as this breaks Acrobat PDF downloading. === Zope/doc/CHANGES.txt 1.335.2.98 => 1.335.2.99 === some fussy email programs happy + - HTTP Range support: Don't join adjacent ranges; The Acrobat PDF + viewer makes extesive use of adjacent ranges and fails if the + resulting response gives only one big range result. + Zope 2.4.3 - Products.PluginIndexes.common.UnIndex: fixed unintended use Which files need an update from CVS ? Dirk Datzert Rasselstein Hoesch GmbH Informatik / Anwendungsentwicklung D-56626 Andernach Koblenzer Strasse 141 http://www.rasselstein-hoesch.de Tel.: +49 (0) 2631 81-4595 Fax.: +49 (0) 2631 81-15-4595 mailto:Dirk.Datzert@rasselstein-hoesch.de

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Re: Problem while rewriting image
by tamilg 07 Jan '02

07 Jan '02

hi I am Tamil Maran.G and am stated my career in zope recently. I am having one problem in ZOPE(DTML). problem is: --------------- I am having one object called "Course" and i am adding image as an object (by using manage_addImage) in Course object. this is working fine. but when i take the same object and deleting the existing image object(by using manage_delImage) and adding a new image object, the new image is not displayed when i refresh the form still it is showing the old image. pls let me know if you find any solution. thanks and regards tamil maran.g

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New Zope News
by Chris McDonough 07 Jan '02

07 Jan '02

Thanks to Casey Duncan and Martijn Faassen, The Zope News for January 4 is out! Check it out by visiting the front page of Zope.org at http://www.zope.org. Cheers, - C

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using API
by Lucas Vogel 07 Jan '02

07 Jan '02

How do I use the API in a PythonScript object to edit a Z SQL Method? I can't find anything in the documentation. Thanks _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

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Boston Zope User Group
by Ben Gustafson 07 Jan '02

07 Jan '02

(Sorry about the slightly off-topic post) I'm looking for people in the Boston/Metrowest area who would like to be involved in starting a formal or informal Boston Zope User Group. Please contact me off-list if interested. Thanks, ...Ben...........

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Problem with Tutorial under Mac OS X
by Tony Williams 07 Jan '02

07 Jan '02

Hi, I've just installed Richard's binary installation of Zope 2.4.3 for Mac OS X. That's Zope controller v 1.2.0, Zope 2.4.3, Python 2.1.1. in tar file dated December 18. It appears to have gone in pretty well but if I try to add a Zope Tutorial object I get an error :- <!-- Traceback (innermost last): File /Applications/Zope/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /Applications/Zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /Applications/Zope/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook File /Applications/Zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /Applications/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: addTutorial) File /Applications/Zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: addTutorial) File /Applications/Zope/lib/python/Products/ZopeTutorial/TutorialTopic.py, line 235, in addTutorial Bad Request: (see above) Any suggestions? Tony Williams (tonyw(a)honestpuck.com) --

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Re: [Zope] Capturing Site Errors
by Anthony Baxter 07 Jan '02

07 Jan '02

>>> Edmund Goppelt wrote > I would like to receive an email everytime there is a Site Error, with > the error, the offending URL and query string etc. > How do you do this? A standard_error_message that uses dtml-sendmail will do the trick. Anthony

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Problem adding ZClass product instance
by Christian Wittern 07 Jan '02

07 Jan '02

Dear Zopers, I recently came back to Zope after a while to find that it changed quite a lot:-) What I am trying to do is quite simple: I have a ZClass based product, with a ZClass in it. After creating the ZClass within the product folder, I can see the new metatype in the drop down list. When I go to some other folder and want do add an instance of that class, wherever and whatever I do, all I get is a NameError: NameError: global name 'tbcontainer' is not defined Tried it in Zope 2.5 beta 2 and 3 and also in 2.4.3. I have combed the documentation and mail list archives for a while without any lead. Could some kind soul please shed some light on this for me. All the best, Christian -- Christian Wittern Institute for Research in Humanities, Kyoto University 47 Higashiogura-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8265, JAPAN

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The Zope way of storing data
by Jens Wolk 06 Jan '02

06 Jan '02

Hello everybody, I am new to Zope. I have worked with OO Programming Languages before but not with OO Databases (only RDBMS's). Therefore the biggest challenge for me is to think of non-relational ways of storing data. In the following I would like to present you a small data modelling problem which I am working on right now and ask you to comment on it. It's a real-life example. I am working on "Yellow Pages" Site for a local NGO. I will keep things simple, so let's call the site the "Simple Yellow Pages", or SYP for short. What SYP is =========== SYP consists categories, entries and contacts. Categories. The categories are arranged as a tree (the nodes of a rooted tree). Each category has exactly one parent category to which it belongs - except the root category which has no parent. A category can in turn have an arbitrary number of child categories (zero, one or more). Entries. An entry can show up in an arbitrary number of categories. (Categories in turn can contain categories *and/or* entries). An entry belongs to exactly one contact. Contacts. Contacts are persons (outside the system) who are responsible for entries. An arbitrary number of entries can be attributed to a contact. Relational data model ===================== (you may skip this part if things seem clear to you and are interested in the Zope way of modelling only) In an Entity-Relationship-Diagram we would the have three entities (category, entry, contact) and the following relationships: "is_parent_of" category - category (1 : *) "contains" category - entry (* : *) "is_responsible_for" contact - entry (1 : *) This would lead to the following CREATE TABLE statements (MySQL): CREATE TABLE category ( id INTEGER NOT NULL AUTO_INCREMENT, parent_id INTEGER NOT NULL, PRIMARY KEY (id), FOREIGN KEY (parend_id) REFERENCES category ); CREATE TABLE entry ( id INTEGER NOT NULL AUTO_INCREMENT, contact_id INTEGER NOT NULL, PRIMARY KEY (id), FOREIGN KEY (contact_id) REFERENCES contact ); CREATE TABLE contact ( id INTEGER NOT NULL AUTO_INCREMENT, PRIMARY KEY (id) ); CREATE TABLE contains ( category_id INTEGER NOT NULL, entry_id INTEGER NOT NULL, PRIMARY KEY (category_id, entry_id), FOREIGN KEY (category_id) REFERENCES category, FOREIGN KEY (entry_id) REFERENCES entry ); The most interesting table is the one labeled "contains". The Zope way of doing it ======================== The categories would be folder objects (a descendant of the ObjectManager Class, right?). The entries would be easy, too, if an entry would be restricted to belong to exactly one category. An entry then would be just be a object residing in a Category object. (YihawDirectory is an example for this approach.) But the entries in SYP here indepently of the Category objects. So I would create a folder (which is not visible to the public) in which the Entry objects lay. The Category objects then would contain some sort of pointers to the actual Entry objects. Deleting a non-empty category wouldn't do any harm because entries are allowed to exist without being part of a category. The update of an entry is reflected in each category it shows up. For the contacts, there would be again have to be a special folder which contains all the Contact objects. A Entry object then would contain a pointer to a contact. But a contact must not be deleted as long there are any Entry objects with a reference to the contact. How would I enforce this? (A 'normal' RDBMS guarantees such relational integrity. MySQL is not a normal RDBMS ;-) The questions ============= Does this solution for Entry objects (folder with the actual objects, pointers to them in the categories) make any sense to you? Somehow, I don't feel comfortable with thousands of objects with cryptic keys (ids) laying around in a folder. So, there would probably be a need for a smart view on these objects. How can I make sure that a Contact object can not be deleted as long as there are references to it? Your comments are very welcome. Jens Wolk, Berlin

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help with regular expressionism
by Peter Bengtsson 06 Jan '02

06 Jan '02

When searching I would like to display the result where the searchterm is highlighted in someway. Like it is on google.com When you search for say "peter" the word "Peter" is highlighted with "Peter". So is also "pEtEr" Does anybody have a little script to do the following transformation??: searchterm="Peter" original_string ="PEters name is peter" result_string: >>> "PEtera name is peter" Cheers, Peter

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