August 2003 - Zope - Zope lists

Zope and RH9
by Dennis Allison 13 Aug '03

13 Aug '03

Python 2.1.3 won't build under RH9. _socket won't build and there appears to have been many changes at the SSL interface. And there's the threads problem, presumably disabled with LD_ASSUME_KERNEL=2.4.1. Just for fun, I tried Python 2.3 and things work (sorta) with lots of deprecation errors. I need a stable system and there's no time before we go live for much testing. Remind me why we need to be using Python 2.1.3 (or maybe, Python 2.2). I am using Zope 2.6.2b3. -dA

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Upcoming Zope4Intranets training session
by Rob Page 13 Aug '03

13 Aug '03

The next Zope4Intranets (Z4I) class (formerly "Zope TurboIntranet") will be held at Zope Corporation's Fredericksburg, VA headquarters September 22-25, 2003. For a brief course description: - http://www.zope.com/Training/Z4ITraining For a PDF of the product brochure: - http://www.zope.com/Products/Zope4Intranets For a recent InfoWorld Z4I article: - http://www.infoworld.com/article/03/08/01/30OPstrategic_1.html For further information, contact sales(a)zope.com. -- Rob Page V: 540.361.1710 Zope Corporation F: 703.995.0412

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WebDAV Locking and Versioning
by Charlie Jones 13 Aug '03

13 Aug '03

We are using Plone as an intranet for the company I work for. Something clicked the other day, and I figured out that we could use WebDAV to access folders for creating and editing standard files (Word, Excel, etc.). So I started the process of looking into this. I have managed to get my OS X machine to access folders via WebDAV and I can create and edit files without a hitch. While looking through various documentation I have seen proposals suggesting that Zope should use the versioning and locking features of the WebDAV protocol. What I haven't found is proof that these items have been integrated into Zope. I realize that the client needs to also implement these features. So my questions are: - Does Zope provide a means to lock and/or provide version control on objects being edited via WebDAV? - If so, is there some source of documentation that provides more detail? - Is it a 1 user to 1 object locking or can multiple people edit the same document? - Again, if this is possible which clients are people using on OS X and Windows? Any help or insight on this topic would be much appreciated. thanks, charlie

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catalog search on a lines property?
by Mark Nenadov 13 Aug '03

13 Aug '03

Hello all, I'm working with a zclass that has a 'lines' property (for the sake of discussion, it will be called 'listing_cats'). The lines property is a list of numbers (which are id's). I want to go through my Catalog and find all objects that have a list_cats that contains a given id (lets say 4928 for example). For my examples, the id will be called 'current_id'. I've tried two things: #1: set 'listing_cats' to current_id then proceed with the dtml-in Catalog and #2 perform a Catalog.searchResults(listing_cats=current_id) Neither of these worked. I'm using a KeywordIndex on my lines object. I kind of expected #1 not to work, but I am suprised that #2 didn't work. Any ideas on how I can do a search on the lines property like I mentioned? ~Mark

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Re: [Zope] Zope application offline - how to apply a license ptotection?
by Jaroslav Lukesh 13 Aug '03

13 Aug '03

> Odesнlatel: Anton Zubenko <zanton(a)axystem.com> > Our company is developing an application, supposed to be run under dedicated > zope server, placed offline in our customers corporate environment and > requested via LAN. > What would be the right way to protect this mechanism from hacking, provied > that zope is an open-source platform, so any code is hypothetically > accessable by the customer and apllication is run completely offline with no > intercation with our information system? > > The required level of protection is not really high, but we need to be safe > from attempts to hack the application by modest programmers at least. 1. use dedicated server with crypted FS (eg., Linux), does not share ANY passwords. 2. does not allow to users gone above specified hierarchy of folders. 3. disable for all other access than "view" all DTML Methods and code-critical DTML documents. etc... Regards JL.

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Re: Whats the Format of Date in portal_catalog( )??
by Josef Meile 13 Aug '03

13 Aug '03

> Hi All, > I want to get the news items by date. for eg...news items > created on a particular date. > > I tried with container.portal_catalog(created='2003-08-13'), > container.portal_catalog(created='2003/08/13') and > many other.... > > But i am not getting anything in result...though i have some > data... > > Is there any problem with date format...??? if yes please specify > me the correct format?? I think that you have to pass a DateTime object and not a string: from DateTime import DateTime container.portal_catalog(created=DateTime('2003/08/13')) Regards, Josef

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Python script returning link to local file
by Michael Bleijerveld 13 Aug '03

13 Aug '03

Hi, I want to use a Python script for returning a link to a local file (in a LocalFS object) in ZPT. The parameter given is the id of the file and is named file. from AccessControl import getSecurityManager user = getSecurityManager().getUser() username = user.getUserName() return container[username].[file] This doesn't work. Is it a reference problem ? Regards, Michael

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startup error
by Michael Long 13 Aug '03

13 Aug '03

Hi, Is this a known issue when starting zope 2.7.0-b1 on both windows and linux? Traceback (most recent call last): File "/opt/zope/lib/python/Zope/App/startup.py", line 48, in startup m=imp.find_module('custom_zodb',[INSTANCE_HOME]) ImportError: No module named custom_zodb Thanks, Mike

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Zope hangs trying to edit a page template in ZMI
by Chris Leonello 13 Aug '03

13 Aug '03

Hi, I have recently been testing Zope on Windows and Unix. On one of my machines, Zope will hang indefinitely whenever I try to edit a page template in the ZMI. I can create templates with no problem. I can view the template fine through a web browser, also. This happens on a HP-UX 11 machine with both Zope 2.6.1 and 2.6.2b5. I am running Python 2.2.3, and have not been able to get Python 2.1.3 compiled to see if it is a Python issue. There is no output in the zope server logs or in the ZMI when this hang happens. The browser will sit and wait to recieve a web response and the python process will run forever eating up CPU cycles. Output from the debug log follows: B 1087353656 2003-08-12T13:37:23 GET /dbtest/atemplate/manage_workspace I 1087353656 2003-08-12T13:37:23 0 A 1087353656 2003-08-12T13:37:24 302 431 E 1087353656 2003-08-12T13:37:24 B 1087353656 2003-08-12T13:37:24 GET /dbtest/atemplate/pt_editForm I 1087353656 2003-08-12T13:37:24 0 It looks like Zope is trying to fetch a script or execute a method (pt_editForm) on my page template object, but cannot locate it. I cannot find any pt_editForm script/method anywhere in the Zope installation. Any help would be appreciated. Thanks! ===== Chris Leonello cleonello(a)yahoo.com __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com

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RE: [Zope] Zope caching method results??
by John Toews 13 Aug '03

13 Aug '03

The page is changing... But the results I'm looking at aren't. The page outputs a list of lists. The number of items in the list is based on a ZipFile object (actually a custom object that inherits from that). So the number of items in the list, as well as the data, changes - except for this one field. I'd happily provide code for anyone interested in helping out... Thanks, John Toews -----Original Message----- From: Dieter Maurer [mailto:dieter@handshake.de] Sent: Tuesday, August 12, 2003 2:32 PM To: John Toews Cc: zope(a)zope.org Subject: Re: [Zope] Zope caching method results?? John Toews wrote at 2003-8-11 16:22 -0500: > I have an external method that is using a class I've written. The class > uses another module (dbxml for the Berkeley XML database). > > It _appears_ as if Zope is caching function results from the dbxml > module. The data doesn't change, but the memory address does. > > tmpXmlResults = self._manifest.queryWithXPath(resourceXpath, > self._manifestcontext) > > The code runs perfectly if run outside of Zope simply on the command > line. > > Is there any sort of caching that Zope does of non-product Python > objects? Or function results? Etc.? I am quite convinced that Zope does not automatically cache the result of External Method calls. However, I remember to have read a similar complaint to yours in the mailing list. Thus, they may be a low probability of a bug. Much more likely is that there is some HTTP cache that caches your page and does not consult Zope at all. Such problems are easily uncovered when you request your browser to load the page without using any caches. Dieter

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