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uncatalog of absent id?
by Nitesh Dhanjani 14 Jul '00

14 Jul '00

Hello, Im fairly new to the Zope world. Im trying to delete a PTK folder, and get this error: Zope Error Zope has encountered an error while publishing this resource. Error Type: ValueError Error Value: Uncatalog of absent id '/icds/Members/bob/index_html' -------------------------------------------------------------------------------- Troubleshooting Suggestions The URL may be incorrect. The parameters passed to this resource may be incorrect. A resource that this resource relies on may be encountering an error. For more detailed information about the error, please refer to the HTML source for this page. If the error persists please contact the site maintainer. Thank you for your patience. Traceback (innermost last): File /usr/local/zope/2.1.7/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/zope/2.1.7/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/zope/2.1.7/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /usr/local/zope/2.1.7/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/zope/2.1.7/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_delObjects) File /usr/local/zope/2.1.7/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: manage_delObjects) File /usr/local/zope/2.1.7/lib/python/OFS/ObjectManager.py, line 401, in manage_delObjects (Object: ApplicationDefaultPermissions) File /usr/local/zope/2.1.7/lib/python/OFS/ObjectManager.py, line 273, in _delObject (Object: ApplicationDefaultPermissions) File /usr/local/zope/2.1.7/lib/python/OFS/ObjectManager.py, line 268, in manage_beforeDelete (Object: DemoPortalBase) File /usr/local/zope/2.1.7/lib/python/OFS/ObjectManager.py, line 268, in manage_beforeDelete (Object: ElementWithAttributes) File /usr/local/zope/2.1.7/lib/python/OFS/ObjectManager.py, line 268, in manage_beforeDelete (Object: ElementWithAttributes) File /usr/local/zope/2.1.7/lib/python/Products/PTKBase/PortalContent.py, line 226, in manage_beforeDelete (Object: index_html) File /usr/local/zope/2.1.7/lib/python/Products/PTKBase/PortalContent.py, line 213, in unindex_object (Object: index_html) File /usr/local/zope/2.1.7/lib/python/Products/ZCatalog/ZCatalog.py, line 358, in uncatalog_object (Object: ElementWithAttributes) File /usr/local/zope/2.1.7/lib/python/Products/ZCatalog/Catalog.py, line 373, in uncatalogObject ValueError: (see above) Any suggestions would be appreciated. Thankyou. nitesh.

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Announcing dev.zope.org
by Brian Lloyd 14 Jul '00

14 Jul '00

Hello all, For some time now, it has been a goal of ours to open up the Zope development process. Some of you may have heard me promise this at the Zope track back in January. Well, it took a little longer than I had hoped it would, but I'm happy to announce an important step in making that a reality: http://dev.zope.org. dev.zope.org is the place for discovering, initiating, and contributing to work on the core Zope platform and related Zope technologies. You can think of it as the rough equivalent of what Mozilla.org is to Mozilla. Why has it taken so long? Because there is much more to "opening the development process" than simply doling out CVS access. Evolving a relatively large and complex piece of software like Zope is a non-trivial task, and doing it in a highly distributed environment is harder still. The dev.zope.org site will provide the background materials and tools to ensure that work on Zope is consistent in organization and execution. It will also help those new to Zope development to come up to speed and get involved quickly. There is still plenty to do be done on the site, but it is done enough to start using it so I want to start learning by doing. If you have questions or comments on the dev site, please send them to me at brian(a)digicool.com and CC the zope-dev list (which is where I expect traffic related to dev.zope.org should go in the near term). Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Class Refactoring Question
by James W. Howe 14 Jul '00

14 Jul '00

I've developed a couple of simply Python classes which I'm using as base classes for some ZClasses that I've developed. I now realize that both of these Python classes could benefit from obtaining behavior from another class. Will I complete hose myself if I change the class definition of my Python base classes? In other words, will existing ZClass instances be completely screwed up if I do this? For example, suppose that I have a base class written in Python which looks like this: class MyFolder(OFS.Folder.Folder): ... I have a ZClass which uses MyFolder as a base, and I have one or more instances of my ZClass in my ZODB. I would like to change the definition of MyFolder to be something like this: class MyFolder(OFS.Folder.Folder, SomeOtherClass): ... Can I do this, or am I asking for trouble. Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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Accessing the Application (or Control_Panel)
by Jeff K. Hoffman 14 Jul '00

14 Jul '00

Hello, I am working on a Python Product (subclass of ObjectManager) that creates some instances of a few ZClasses inside itself when constructed. Currently, I do this as follows: CONTROL_PANEL = None def manage_addMyClass(self, id, title='', REQUEST=None): global CONTROL_PANEL if CONTROL_PANEL is None: CONTROL_PANEL = self.Control_Panel self._setObject(id, MyClass(id, title)) ... class MyClass(...): def __init__(self, id, title=''): self.id = id self.title = title ob = CONTROL_PANEL.Products.MyProduct.MyClass('myId') ob.id = 'myId' self._setObject('myId', ob) which works fine, until I need to use CONTROL_PANEL from somewhere else before manage_addMyClass is called (currently, I am trying to upgrade existing instances in __setstate__). Inside __setstate__, self.Control_Panel throws an exception, for understandable reasons. So, I get the feeling I am going about this incorrectly. I grep'd the source last night, looking for a getApplicationInstance() method, or something similar, but found nothing. AFAICT, there is no easy way to get ahold of the one true Application object without having a reference to an object in the ZODB and calling getPhysicalRoot(). Did I miss something? Is there a better way to do what I am trying to do? --Jeff --- Jeff K. Hoffman 704.849.0731 x108 Chief Technology Officer mailto:jeff.hoffman@goingv.com Going Virtual, L.L.C. http://www.goingv.com/

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Re: [Zope] Linux user group
by ethan mindlace fremen 14 Jul '00

14 Jul '00

CURTIS David wrote: > > Greetings, > > I am a member of the a Linux users group and I have been asked to do a demo on ZOPE because I am using it and many members are curious. I consider myself a ZOPE newbie, because use I use ZOPE to access some really simple databases. I have NOT done any special python programming (but not for lack of trying) but would like some input on what I should say about ZOPE. 1) Is there a ZOPE demo for that runs on a CDROM? I think you're looking for the "Zope on CDROM howto": http://www.zope.org/Members/jens/news/zope_on_cdrom > 2) What is the best way to present ZOPE? Hm. In a bed of lettuce with an olive on top? (sorry) the advantages I noticed when first using zope: Reduction of redundancy through aquisition (increases maintainability, etc) Easy dynamically generated pages (with or without RDB access) Through the web management. -- ethan mindlace fremen Zopatista Community Liason Abnegate I!

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Re: [Zope] Zope 2.2 final released!
by James W. Howe 14 Jul '00

14 Jul '00

At 02:27 PM 7/14/2000 -0400, Brian Lloyd wrote: >Hi all, > > > Zope 2.2.0 final has been released - you can download it > from Zope.org: > > http://www.zope.org/Products/Zope/2.2.0/ I'm glad to see that 2.2.0 is finally released! Now I have to ask a stupid, somewhat newbie, question. I have an existing 2.1.6 Zope installation running under Windows 2000. I have a handful of products installed. I've read the article on upgrading to 2.2.0, but it doesn't explain the process of how to actually migrate a site from 2.1.6 to 2.2.0. What is the recommended way to move an existing 2.1.6 site to run under 2.2.0, particularly (for me) on a Win platform? Thanks! James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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Creating graphs with Zope (under NT)
by Richard Folwell 14 Jul '00

14 Jul '00

How are the Zope website statistics graphs created? I need to create simple graphs (pie charts and line graphs) from data held in an ODBC database, using Zope under NT (unfortunately). I looked at gnuplot, and found ways to produce really impressive complex sophisticated graphs, but nothing to produce simple pie charts. Did I not look hard enough? Is there a better way? The charts do not have to be live - the information changes at known times weekly, so I could run external processes to create image files that are served using LocalFS, if necessary. Thanks, Richard

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Zope 2.2 final released!
by Brian Lloyd 14 Jul '00

14 Jul '00

Hi all, Zope 2.2.0 final has been released - you can download it from Zope.org: http://www.zope.org/Products/Zope/2.2.0/ Many thanks go to all of those who have worked with the alpha and beta releases and helped work through the more than 110 (!) issues that have been closed since Zope 2.1.6 came out. The Zope 2.2 release includes: - The new security policy implementation and object ownership that addresses the server-side trojan issue: http://www.zope.org/Members/jim/ZopeSecurity/ServerSideTrojan - The new online help system which provides context-sensitive help for all Zope management screens and includes Zope API documentation - A built-in Zope tutorial to get new users started with Zope - Basic internal support for mountable object databases - A new "history" tab for selected objects that provides access to previous revisions through the web - Better performance on many systems as a result of setting a more appropriate value for the "check interval" of the Python runtime - Many, many bugfixes! For more information on what is new in Zope 2.2, see the CHANGES.txt and HISTORY.txt files for the release: - http://www.zope.org/Products/Zope/2.2.0/CHANGES.txt - http://www.zope.org/Products/Zope/2.2.0/HISTORY.txt Note that there are important changes to the security model in Zope 2.2 that both site maintainers and Zope product developers need to be aware of. Site maintainers should read the document "Upgrading to Zope 2.2.0" for important information on upgrading their Zope sites: - http://www.zope.org/Products/Zope/2.2.0/upgrading_to_220 Product authors should read the "Product author's guide to Zope 2.2+ security" to learn about the changes in 2.2 that may affect their products: - http://www.zope.org/Documentation/How-To/ProductAuthorUpdateGuide Enjoy! Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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zope.org updated
by ethan mindlace fremen 14 Jul '00

14 Jul '00

zope.org is now running the release version of zope (2.2), which should be availiable for download shortly. Enjoy, -- ethan mindlace fremen Zopatista Community Liason Abnegate I!

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simple instructions for site search
by Sean Kelley 14 Jul '00

14 Jul '00

I am a new Zope user- Can anyone tell me if there is documented anywhere, simple instructions for creating a full site search by keyword? I have a simple site with squishdot and zope chat. Thanks -- Sean Kelley www.kelleydesign.com * www.horse101.com * www.dressage.to

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