February 2001 - Zope

zope list posting restrictions
by kosh 01 Mar '01

01 Mar '01

After a discussion on irc the idea of a 15K limit and no html email was arrived it. This would block almost all spam that comes to this list and would not interfere with its normal functioning since the 15K cap is about 5K over most of the largest pure text messages which seem be hit a cap of about 10K without having html in them. Kosh

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Error-reporting bug
by John R. Daily 01 Mar '01

01 Mar '01

I've noticed in 2.3.0 that if a DTML method is the target of a form request, and it invokes a Python script which attempts operations with insufficient privileges, the error reported back to the browser is a KeyError on one of the variables passed in via the form submission and forwarded along to the Python script. This has cost me a lot of troubleshooting time as I either write a new test page to try the operation and determine what the security issue really is, or I go through and add proxy capabilities to random Python scripts that are invoked by the DTML method or the scripts it invokes. Not to mention the initial hours it took me to figure out that it wasn't really a KeyError, but rather a security issue. Is this a known issue that will eventually be resolved, or will this continue to be a problem? -- -- John R. Daily jdaily(a)progeny.com Systems Programmer Progeny Linux Systems Master of the ephemeral epiphany

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Zope changing incoming info?
by Gary Perez 28 Feb '01

28 Feb '01

Hi, all. Zope 2.2.2, Python 1.5.2, Linux 2.4.1 Got an python module (/opt/Zope/Extensions/selfInfo.py) which returns a dictionary. Got a Zope external method "Get_Self_Info" w/ appropriate function/filename. Now... when calling from either a DTML Document or DTML Method, something's going screwy. ### CALL 1 ### <dtml-var Get_Self_Info> returns {'cpuLoading': 16.4179104478} Beautiful, no? ### CALL 2 ### <dtml-var "Get_Self_Info['cpuLoading']"> barfs, returns Error Type: AttributeError Error Value: __getitem__ ... File /opt/Zope/lib/python/DocumentTemplate/DT_Util.py, line 337, in eval (Object: Get_Self_Info['cpuLoading']) (Info: Get_Self_Info) File <string>, line 0, in ? File /opt/Zope/lib/python/DocumentTemplate/DT_Util.py, line 163, in careful_getitem I'm used to accounting for this error... usually by calling like in CALL 3... ### CALL 3 ### <dtml-let XYZ=Get_Self_Info> <dtml-var "XYZ['cpuLoading']"> </dtml-let> returns {'cpuLoading': 100.0} My question is... why is Zope returning the correct float the first time (CALL 1), but returning an entirely different float for CALL 3? Is there something I'm missing? Thanks in advance for your help. -Gary -- Gary Perez, (insert job title of choice) Mktg. Coord. + MIS Mgr. + Sys. Admin. Advanced Simulation Technology, inc. http://www.asti-usa.com/

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Can't remove proxy?
by John R. Daily 28 Feb '01

28 Feb '01

After setting a Python script to run via a proxy (Zope version 2.3.0), if I later go back and unselect the role, I can't save that change. The resulting page complains that I have to select at least one role. Is there a workaround? -- -- John R. Daily jdaily(a)progeny.com Systems Programmer Progeny Linux Systems Master of the ephemeral epiphany

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Optimization
by Paul Zwarts 28 Feb '01

28 Feb '01

Hi Zoperopes.... Im nearing completion of my site and though Im new to python and zope, I've gotten a mile out of the meter of funcitonality. Im very happy with it,. But next I raise the issue of speed.... Im wondering what are the evaluating criteriea for the response speed of Zope.... Say for instance, you use heavy namespace access, does it slow the system down much? How about for dbms calls? Im using SQLSession quite heavily to store parameters that are required to run the site. Also, Im pretty stupid when it comes to this ZClass stuff, so I've just worked around it by using close to 150 SQL methods and EVERYTHING is in the DBMS. Not only by idiocy, but because the site was ramped out of another webapp system and it seemed easier to just keep using the dbms data for everything..... Also, is there a product that can do timegating and performance testing on zope? Thanks as always, Paz

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Overlap
by Ron Baum 28 Feb '01

28 Feb '01

I am using dtml-in's batch features and noticed that I am getting an overlap of the last item to the top of the next batch. I changed the overlap attribute to 0 and I still get the overlap. Is there anything else that I need to do to make this work? -------------------------------------------------------------------------------- -------------- Ron Baum Database Engineer Accelerated Technology, Inc. 720 Oak Circle Dr East Mobile, AL 36609 Email: rbaum(a)atinucleus.com http://www.acceleratedtechnology.com -------------------------------------------------------------------------------- -------------- "Nucleus. All You NEED in an RTOS. Royalty Free." -------------------------------------------------------------------------------- --------------

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RE: [Zope] DTML documents as properties of python product classes
by Keith Alperin 28 Feb '01

28 Feb '01

Thank you so much for your response. Unfortunately, this didn't seem to work. If I comment out the last line of the function (return self.vote_results(self, self.REQUEST)) and restart Zope, then the product loads successfully. I also tried the following variations: return self.vote_results(self, REQUEST) and return self.vote_results(self) neither seemed to work. Any more help that someone could provide would be GREATLY appreciated. Thanks again, Keith -----Original Message----- From: Randall F. Kern [mailto:randy@spoke.net] Sent: Monday, February 26, 2001 8:38 PM To: Keith Alperin; Zope(a)zope.org Subject: RE: [Zope] DTML documents as properties of python product classes That message probably means there is a syntax error. If you select your product in the control panel, it will show you the details. As for using the DTML document, you will need to call it at the end of your function: return self.vote_results(self, self.REQUEST) -Randy -----Original Message----- From: Keith Alperin [mailto:KAlperin@ignitemedia.com] Sent: Monday, February 26, 2001 5:51 PM To: Zope(a)zope.org Subject: [Zope] DTML documents as properties of python product classes Greetings Zope folks. I am a bit of a newbie here and am attempting to use a DTML document as a property of a class of a python product. To do so, I have done the following (using the TutorialPoll as my example): #...snip vote_results = Globals.HTMLFile("vote_results", globals()) def castVote(self, choice): "Votes for a choice" vote_count = self.getVotesFor(choice) self._votes[choice] = vote_count + 1 return self.vote_results #the rest of my class Upon restarting Zope, I get "(This object from the TutorialPoll product is broken!)" next to my object in the management interface. Any incite that any of you can provide would be most appreciated. Thanks so much, Keith R. Alperin

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How to check for a folder's existence and create it if it doesn't exist?
by Chris Muldrow 28 Feb '01

28 Feb '01

I'm trying create a method to go through a site and create certain folders if they don't already exist. I can check for the existence of the folders with this: <dtml-in expr="objectValues('Folder')"> <dtml-if "id=='2001'"> It matches<p> </dtml-if> </dtml-in> But how do I craft the "else" to create the folder? Obviously, if I throw the <dtml-else> inside the "in" loop, it'll throw itself into the "else" action for every iteration where it doesn't find the named folder. -- Chris Muldrow, muldrow(a)mac.com

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RE: [Zope] Problems with Core Session Tracking
by Randall F. Kern 28 Feb '01

28 Feb '01

FYI, I've seen this too, and it seems to be related to ConflictErrors with my system also. -Randy > -----Original Message----- > From: Juan Carlos Coruña [mailto:jcoruna@ibdosnorte.com] > Sent: Wednesday, February 28, 2001 7:41 AM > To: zope(a)zope.org > Subject: RE: [Zope] Problems with Core Session Tracking > > > Yes, I get fewer errors with the external container and I'm > trying to monitor the ConflictErrors and the sessioning > errors to estabilish a relationship. > It seems that they are related. When I be sure of their > relationship I will report it to the list. > > > -----Mensaje original----- > > De: Chris McDonough [mailto:chrism@digicool.com] > > Enviado el: miércoles, 28 de febrero de 2001 16:11 > > Para: Juan Carlos Coruña; zope(a)zope.org > > Asunto: Re: [Zope] Problems with Core Session Tracking > > > > > > > After using an external data container te problem appears > aprox. 1%. > > > Maybe it's a problem related to ConflictErrors in the > ZODB? I obtain > > ConflictErrors in > > > the zope debug log. > > > > > Consider the following: > > > I have 4000 accesses on this site per day. Maximum of 12 > accesses per > > minute. > > > > I'm glad you mentioned that. Are you able to notice any direct > > relationship > > between the conflict errors and the sessioning failures? > Do you get fewer > > conflicts with the external container? > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Bug Report : Problems with Pictures
by Ian Thomas 28 Feb '01

28 Feb '01

I ran into a problem with uploading images into existing image objects. I have looked in the changes list for version 2.3.1beta but didn't see this problem listed. System Information I am running Zope 2.3.0 on Windows 2000. I uploaded a picture and called it 55Ford. (a jpg file) I changed the picture and uploaded the changes. I could not view the changed picture. I tired again thinking this is strange and still view showed the OLD (original) image. I delete the image object from zope and recreated it with the same name. I still saw the OLD (original) image! I create an image with a different name 55Ford2 and uploaded it and was able to view the EDITED image. Even stranger when I renamed the 55Ford2 object 55Ford and viewed it I saw the old image and when I renamed it back to 55Ford2 and viewed it I saw the new edited image. Please take a look. If you can't duplicate the problem email me for more details. Ian

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