February 2000 - Zope-Dev

Re: [Zope-dev] Accessing root object
by Tres Seaver 11 Feb '00

11 Feb '00

Robert Sander <zope-dev(a)beteigeuze.cs.tu-berlin.de> wrote: > On Thu, Feb 10, 2000 at 03:40:38PM -0000, Phil Harris wrote: > > I think there's something called app? > > > > It's declared in <zopedir>/lib/python/Main.py. > > > > That may be what your looking for?? > > I don't know, the object app is not in the global namespace when __init__.py > of my Product is called. > > It may be the same problem with the discussed scheduler product when creating > another thread, b ut I don't know. Here is a snippet from the ZopeStudio product, which munges the top-level application object (actually, its *class*) to add the RDF stuff that the Mozilla front end uses:: # Shove the above method in the Application class OFS.Application.Application.zsTreeRoot = zsTreeRoot You should be able to do the same:: OFS.Application.Application.theORB = CORBA.orb_init( sys.argv ) # or whatever -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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Zope 2.1.4 released...
by Brian Lloyd 11 Feb '00

11 Feb '00

Hi all, Zope 2.1.4 has been released. It can be downloaded from Zope.org at: http://www.zope.org/Products/Zope/2.1.4/ This update prevents the REQUEST object from being traversable by web clients. While this feature was useful for debugging, Evan Simpson noted a potential security issue that could allow web authors to play client scripting tricks and make them appear (to the user) to be coming from a Zope site. While we know of no instances of this happening and the actual security of the Zope site's data is not affected by this, we do recommend that you upgrade to 2.1.4 to avoid any problems. Also (I know many of you are already thinking it :), we are working on a way to distribute "patch" releases for things like this to make updates easier. Until then, for those who _really_ just want to patch your installation you can replace the file lib/python/ZPublisher/BaseRequest.py in your installation with the one from the 2.1.4 distribution and restart your Zope instance. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Zope keeps crashing on me!
by Dave Blasby 11 Feb '00

11 Feb '00

Zope keeps crashing on me. It started happening after I installed the ZOracle Product. I upgraded to Zope-2.1.4 but it still keeps crashing one me. Here's a trace: Traceback (innermost last): File "/opt/local/Zope-2.1.4/z2.py", line 583, in ? asyncore.loop() File "/opt/local/Zope-2.1.4/ZServer/medusa/asyncore.py", line 107, in loop poll_fun (timeout) File "/opt/local/Zope-2.1.4/ZServer/medusa/asyncore.py", line 55, in poll (r,w,e) = select.select (r,w,e, timeout) select.error: (4, 'Interrupted system call') Any ideas? It happens very often immediately after an external method completes, but it also happens in other cases like when you press the "change" button while editing a DTML file.

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WebDAV
by Kristjan Sander 10 Feb '00

10 Feb '00

Hello I have to write something to integrate a remote document management system with client PC (Windows). I consider using Web Folders added to Win by IE5 that supports FrontPage Extension and WebDAV. What about WebDAV in Zope? It seems that I have to write something that sends my data to specific port in WebDAV. Any suggestions? I am a newbie in Python. Thanks. Kristjan

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Pickle confuses ZClass Instance for Python Method?
by Loren Stafford 10 Feb '00

10 Feb '00

I just created a ZClass "TimedEventClass" Now I'm trying to add an instance of that class programmatically, and this error pops up. It makes no sense to me. I have no Python Methods in my code. Can anyone suggest where to look next?  Traceback (innermost last): File C:\Zope213\lib\python\ZPublisher\Publish.py, line 214, in publish_module File C:\Zope213\lib\python\ZPublisher\Publish.py, line 179, in publish File C:\Zope213\lib\python\Zope\__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File C:\Zope213\lib\python\ZPublisher\Publish.py, line 169, in publish File C:\Zope213\lib\python\ZODB\Transaction.py, line 237, in commit File C:\Zope213\lib\python\ZODB\Connection.py, line 325, in commit (Info: (('*a/6lgOdxYOKuB7ddzBaPRQ==', 'TimedEventClass'), '\000\000\000\000\000\000\002\374', '')) cPickle.PicklingError: (see above)

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Re: [Zope-dev] Accessing root object
by Robert Sander 10 Feb '00

10 Feb '00

On Thu, Feb 10, 2000 at 03:40:38PM -0000, Phil Harris wrote: > I think there's something called app? > > It's declared in <zopedir>/lib/python/Main.py. > > That may be what your looking for?? I don't know, the object app is not in the global namespace when __init__.py of my Product is called. It may be the same problem with the discussed scheduler product when creating another thread, b ut I don't know. Greetings -- Robert Sander www.gurubert.de

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Accessing root object
by Robert Sander 10 Feb '00

10 Feb '00

Hi! I am currently developing a Product using CORBA technology and want to set an orb object as attribute of the root ZOPE object. My simple question now is, how do I access it from __init_.py of my Product? Is there a special Python object in the global namespace? Print dir() does not reveal this. Am I missing something here? Greetings -- Robert Sander www.gurubert.de

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Is ODBC the way to go ?
by Richard Moon 10 Feb '00

10 Feb '00

Being brand new to Zope I may have misunderstood some of the things I have seen in the archives but ...it seems that the intention is to concentrate on Openlink ODBC for database connections. I have used Openlink for many years and would say that it is a fine product but I have serious doubts that it is the way to go for general database connections. (It's not Open Source either..) My particular background is Informix and I would love to use Zope, but there is no native interface. I'm happy to use ODBC during development but for a large scale implementation ? Perhaps its just prejudice but it is a prejudice which will be shared by PHB's everywhere. Also ODBC implies NT and that goes against the whole Open Source philosophy surely. Excuse my ignorance but since there is a Python interface to Informix does that not make it possible to link Zope to Informix directly ? Regards Richard Richard Moon richard(a)dcs.co.uk

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Why are my product code changes being ignored?
by Itai Tavor 10 Feb '00

10 Feb '00

Hi, I've been writing products for months... I really thought I knew how this stuff works. I'm running Zope 2.1.3 in debug mode. I make changes to a source file in a product, restart Zope, and the change is ignored. I stop Zope, delete all .pyc files in the product, start Zope - still nothing. I rename the source file, start Zope - sure enough, it complains that it can't find the file. Rename the file back, start Zope - it's still complaining about not finding the file. Happy 1900 Itai -- Itai Tavor -- "Je sautille, donc je suis." -- itavor(a)vic.bigpond.net.au -- - Kermit the Frog -- -- "What he needs now is understanding... and a confederate victory" -- -- Dr. Jacobi, Twin Peaks --

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Fw: [Zope] Using Links within Zope
by Loren Stafford 09 Feb '00

09 Feb '00

To elaborate on my own post: I remember wasting some time before I figured out that I had to use 'absolute_url'. With just relative 'url' the URL kept getting longer. This is certainly an issue. I'm not sure that 'absolute_url' is the only or best solution. -- Loren ----- Original Message ----- From: Loren Stafford <lstaffor(a)dynalogic.com> To: Eron Lloyd <woodsage(a)op.net> Sent: February 08, 2000 09:52 PM Subject: Re: [Zope] Using Links within Zope > There's a How-To on that kind of nav bar > (http://www.zope.org/Members/lstaffor/Breadcrumbs) You are welcome to use > any of it in other documentation. > > It mostly illustrates how to use the PARENTS object. > > As far as linking goes, it's pretty simple. It uses absolute_url for all > hrefs. > > -- Loren Stafford > > ----- Original Message ----- > From: Eron Lloyd <woodsage(a)op.net> > To: <zope(a)zope.org> > Sent: February 08, 2000 08:08 PM > Subject: [Zope] Using Links within Zope > > [snip[ > > > > My next question is: Linking in Zope - is there anything special (yet > > basic enough) that can be done besides a "<a href="some.object">click > > here</a>" type of link? Any DTML-special stuff? Especially useful would > > be implementing a navigation bar that trails behind each level deep into > > the heirarchy you go. How to generate the links, etc. and what DTML > > would need to be used. > > > > Ideas? Pour 'em out, I'm willing to write as much as I learn. > > > > Thanks in advance, > > > > Eron

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