September 2000 - Zope

Re: [Zope] Best way to handle SQL update with variable number of fields?
by Dieter Maurer 11 Sep '00

11 Sep '00

chris(a)ncafe.com writes: > The problem - I would like to populate the form with the existing > values and then allow the user to change the ones they want to. Some > of the fields in the database are empty and it will always be that > way. The length of the update statement will change. I do not understand, why you would want a varying length update. If you populated the form with the current values and the user changes some of them, then the form contains the current values with respect to all fields it shows. Thus, you can update them in a single fixed length update. In cases, when I do require (or want) variable length updates (or inserts) I use code like the following (the code uses a naming scheme to select form variables that should update the database: variables with names ending in "_"): DTML: <dtml-let update_list="[]"> <dtml-in "REQUEST.form.items()">  <dtml-let name=sequence-key value=sequence-item> <dtml-if "name[-1:] == '_'">  <dtml-call "update_dict.append((name,value))> </dtml-if </dtml-let> </dtml-in> <dtml-call "SQLupdate(items=update_dict)"> </dtml-let> SQLupdate: Arguments: items Template: <dtml-unless items><dtml-return "0"></dtml-unless> update TABLE set <dtml-in items> <dtml-var sequence-key> = <dtml-sqlvar sequence-item type=string>  <dtml-unless sequence-end>, </dtml-unless> </dtml-in> Dieter

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Re: [Zope] ZClasses - Base classes
by Dieter Maurer 11 Sep '00

11 Sep '00

Philipp Auersperg writes: > I know that one cannot change the base classes of a ZClass after it has een= > created, but my question: > > How can I just find out / enmerate the base classes of a ZClass? You see mangled names of your base classes in the ZClass' "Basic" Tab. When you look at the DTML source generating this tab, you can find out, how to get this information programmatically. Dieter

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Looking for Zope vs. Others at-a-glance comparison
by Jason Cunliffe 11 Sep '00

11 Sep '00

Hello I need to present the arguments for why we haev chosen Zope vs. Others. Does anyone know of a clear at-a-glance table or anything with the main contenders, features, price, licensing etc. Thanks - Jason ________________________________________________________________ Jason CUNLIFFE = NOMADICS.(Interactive Art and Technology).Design Director

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zope login window: how to change the 'Zope' realm/resource??
by Gilles Lavaux 11 Sep '00

11 Sep '00

Hello, Question about Zope 2.2.1: - I have a 'administration' folder which contains administration methods and is restricted to the 'project_admin' role. - The user 'toto' has the role 'project_admin'. When I access this folder, the login window prompt for a 'Zope' resource (IE4, Opera4..). I want to replace this 'Zope' by 'project_admin', or whatever role needed by the folder. Any idee?? Gilles Lavaux

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Re: [Zope] Looking for Zope vs. Others at-a-glance comparison
by J. Atwood 11 Sep '00

11 Sep '00

Sorry.. the second link should have been... http://www.zope.org/Members/BwanaZulia/zope.html J > From: J. Atwood <jatwood(a)bwanazulia.com> > Date: Mon, 11 Sep 2000 11:44:33 -0400 > To: Jason Cunliffe <jasonic(a)nomadicsltd.com> > Subject: Re: [Zope] Looking for Zope vs. Others at-a-glance comparison > > Try > > http://www.camworld.com/cms/ > > And more at > > http://www.camworld.com/misc/cms.html > > Cheers, > J > >> From: "Jason Cunliffe" <jasonic(a)nomadicsltd.com> >> Date: Sat, 9 Sep 2000 09:17:43 -0400 >> To: <zope(a)zope.org> >> Subject: [Zope] Looking for Zope vs. Others at-a-glance comparison >> >> Hello >> >> I need to present the arguments for why we haev chosen Zope vs. Others. >> >> Does anyone know of a clear at-a-glance table or anything with the main >> contenders, features, price, licensing etc. >> >> Thanks >> - Jason >> ________________________________________________________________ >> Jason CUNLIFFE = NOMADICS.(Interactive Art and Technology).Design Director >> >> >> >> _______________________________________________ >> 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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Copy/Paste DTML method raises exception "does not support this operation"
by Brad Clements 11 Sep '00

11 Sep '00

I think my Zodb is messed up, I'm running Zope 2.2.1 (binary release, python 1.5.2, win32-x86) I copied a DTML Method, and tried to paste it into the same folder. I get this exception: The object ReportBanner does not support this operation Traceback (innermost last): File E:\Zope\lib\python\ZPublisher\Publish.py, line 222, in publish_module File E:\Zope\lib\python\ZPublisher\Publish.py, line 187, in publish File E:\Zope\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File E:\Zope\lib\python\ZPublisher\Publish.py, line 171, in publish File e:\Zope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_pasteObjects) File E:\Zope\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_pasteObjects) File E:\Zope\lib\python\OFS\CopySupport.py, line 203, in manage_pasteObjects (Object: Traversable) File E:\Zope\lib\python\OFS\CopySupport.py, line 406, in _verifyObjectPaste (Object: Traversable) Copy Error: (see above) The DTML Method was un-owned, I took ownership and retried copy/paste, get the same error again. I can't paste it into a different folder either. How can I figure out what's happening? I'm worried that my ZODB has become corrupted. I'm logged in as manager. Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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Re: [Zope-dev] Size of Data.fs - and crypto.
by Marcin Kasperski 11 Sep '00

11 Sep '00

> > Another thing. Have anyone tried to encrypt all data inside the > Data.fs file? I mean, encrypted the data so that not even root can > access it, only if you have the right passphrase (or whatever) in the > management interface are you allowed access to the data. > You got some suggestions to rewrite pickling routines. I have another simple idea: what about leaving zope intact and putting Data.fs on cryptographic filesystem? There are some implementations freely available within Linux kernel... By the way: whichever method to encrypt data you would use, you will face the same problem: - either you must manually enter some password after each system or zope startup - or you must put the password (key,seed,.. whatever) somewhere on the filesystem - where it can be easily read at least by the root. -- Serwis dla programistów, kącik mieszkaniowy: http://www.mk.w.pl | | You have the right to see progress in a running system, proven to work | by passing repeatable tests that you specify. (Ken Beck's Second | Customer Right)

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The Zope (ZopeDev) service terminated with service-specific error 1. 1.
by Jean Jordaan 11 Sep '00

11 Sep '00

Hi all For the record, I'm getting this in the NT Event Log: The Zope (ZopeDev) service terminated with service-specific error 1. No Zope. Let's see if I can get it running again .. -- Jean Jordaan -- technical writer -- Mosaic Software -- Zope 2.1.6 on WinNT and W2K

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Abstract ZClasses and containing classes
by Brian and JoAnn Burton 11 Sep '00

11 Sep '00

Scenario: here is a hierarchy of ZClasses. AbsDogPoundOrganization - abstract class ForProfitOrganization - subclass of AbsDogPoundOrganization NonProfitOrganization - subclass of AbsDogPoundOrganization Now I want AbsDogPoundOrganization to contain the class of Location (not an abstract class). First, what is the correct way to define an abstract ZClass. Do you make one that has no constructors? The problem I see is that then the subclasses of AbsDogPoundOrganization don't allow me to create instances of Location within them.

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ZClass property sheets and lists of values
by Brian and JoAnn Burton 11 Sep '00

11 Sep '00

Is there a way to have 2 property sheets in a ZClass where one property in one sheet uses a property in another sheet to fill out its list? This way, I can manage who can control what is in the list. How do I refer to the property that contains the list? I tried things like ../othersheet/listproperty but that did not work.

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