April 2001 - Zope-Announce

iuveno Products Mailing Lists
by Stephan Richter 17 Apr '01

17 Apr '01

Hello everyone, due to the surprising response to our initial openings of DBObjects (SmartObjects), Proiektor, CMS System and ZQuest, iuveno set up some mailing lists for the projects making the communication and discussions easier. We will soon setup some project tools (such as a feature and bug collector, bulletin board, release plan ...) most likely using Proiektor itself. Also, I think we finally got rid of problem that froze our server every 2 minutes under heavier load. You forgot the link? No Problem: http://demo.iuveno-net.de I hope I see you on the mailing lists! :-) Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development & Technical Project Management

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Zope Enterprise Objects 1.0b1 is available
by Jim Fulton 16 Apr '01

16 Apr '01

Zope Enterprise Objects (ZEO) provides the ability for multiple processes to use a single Zope Oject Database. ZEO turns the Zope object system into a distributed architecture, allowing multiple processors, machines, and networks to act as one website. The 1.0 beta release is available at: http://www.zope.org/Products/ZEO. The beta release has a few minor bug fixes to the 0.5.0 release and has some cleanups in the packaging. I hope to make a final release next week. Jim -- Jim Fulton mailto:jim@digicool.com Python Powered! Technical Director (888) 344-4332 http://www.python.org Digital Creations http://www.digicool.com http://www.zope.org

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[Ann] Protecting DTML objects from Web-Access
by Dieter Maurer 14 Apr '01

14 Apr '01

Dear Zopistas, Several times, I heard the wish to protect objects from access through the Web while they are otherwise (i.e. from DTML, Python Script, ...) usable as normal. This requirement prevents using the "View" permission as it covers both access from the Web and internally. We discussed earlier to split the View permission into something like a "View" (in the sense of "View through the Web") and "Use" (in the sense as use internally). Recently, I suggested an incredible complex solution for hiding doc strings. Now, I found a really easy way to achieve the goal. It is a hack, though. Splitting the "View" permission would be much more explicit. It goes like this: ZPublisher normally wants to call "index_html" (or whatever standard method handles the HTTP request) when it reaches the end of the URL during traversal. It can be prevented to do this, if either the object does not have (or acquire) the method or is has, but it is 'None'. As DTML objects, and probably many others (Python Scripts may use a different approach), do not want an acquired "index_html" to be called, they define "index_html = None". If a DTML object's "index_html" is set to something different (not 'None'), then this object is called by ZPublisher and not the DTML object. You can set any callable object. It may return a nice page telling the user that he exceeds his limits, raise an exception or set an error response status. Setting "index_html" to "None" again restores the old state. The following trivial external method can set "index_html": def setIndex_html(obj, index_html): obj.index_html= index_html Dieter

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Generic Sort External Method
by Oleg Broytmann 06 Apr '01

06 Apr '01

Hello! On http://www.zope.org/Members/phd/Sort/ there is the generic Sort External Method that helps programmers to sort their sequences according to their needs. It can sort by a key, by multiple key, in ascending/descending order (different order for any key possible), by locale rules, ignoring case and, best of all, it allows developer to write his/her own comparison function for a key. Example: Sort(sequence, "akey/nocase,anotherkey/cmp/desc") This, of course, is a variant of my patch for dtml-in (http://classic.zope.org:8080/Collector/2120/view) I am not going to drop one of them in favor of the other - both have its niches. There is a command-line test suite and a Zope test folder. 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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DBObjects 1.0 and Demos for Proiektor & ZQuest released
by Stephan Richter 05 Apr '01

05 Apr '01

Hello everyone, iuveno AG, Ingolstadt Germany, has made available a demo and products page, releasing several products: THE LINK: http://demo.iuveno-net.de/ 1. DBObjects 1.0 - DBObjects is a framework that maps relational data to a Zope object tree. It provides many features (such as SQL Method auto-generation) and saves up to 95% development time on object creation with relational data. API Documentation, a Demo, Feature List and so on are available on the site. 2. Proiektor - Proiektor is a groupware and project management system developed by iuveno. It is based on DBObjects and implements a nice set of features with some unique design ideas. But see yourself... 3. ZQuest - ZQuest was originally written for a university as testing tool and is now also developed by iuveno AG. It has a good set of features, especially for scientific questions. ZQuest uses DBObjects of course. If you are interested, click on the link above ... 4. CMS - Our Content Management System is coming soon with a true user-friendly management interface... ALL THESE PRODUCTS ARE OPEN SOURCE!!! Please feel free to contact me any time via E-mail (srichter(a)cbu.edu or stephan(a)iuveno.de) or via phone at +1-901-230-ZOPE (9673). I hope you enjoy! Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development & Technical Project Management

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Zope 2.3.1-compatible ZEO Release
by Chris McDonough 02 Apr '01

02 Apr '01

There has been a new ZEO (Zope Enterprise Object) release, primarily made to achieve compatibility with code in Zope 2.3.1. If you are running ZEO, you need upgrade to ZEO release 0.5.0 before you can use Zope 2.3.1 reliably. The new release also fixes bugs found in previous releases, and can be used with Zopes prior to 2.3.1. For more information, see http://www.zope.org/Products/ZEO.

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