July 2005 - Zope - Zope lists

security for ZPT-based Product
by Milos Prudek 28 Jul '05

28 Jul '05

How can I manage permissions for imported ZPT files? Relevant lines from my Product: from AccessControl import ClassSecurityInfo class MyClass(....): security=ClassSecurityInfo() comment_add_form=PageTemplateFile('zpt/comment_add_form',globals()) My goal is to limit access to comment_add_form to the Authenticated role only. comment_add_form is on the filesystem, in my Product's zpt directory. How can I achieve this? I understand zilch about ClassSecurityInfo... (My Product is based on JMBoring template) -- Milos Prudek http://www.spoxdesign.com - your web usability testing

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what the namespace means in Script(python)?
by Litao Wei 28 Jul '05

28 Jul '05

Hi list: In Script(python) binding page. there is some description about namespace binding: When the script is called from DTML, this is the caller's DTML namespace, otherwise it is an empty namespace. Recommended value: |_| (underscore character) But in zope book, when talk about Error Handling in the Advanced Page Templates chapter. It looks that it use ZPT with script's namespace. See below. For more flexible error handling you can call a script. For example: <div tal:on-error="structure here/handleError"> ... </div> Any error that occurs inside the |div| will call the |handleError| script. Note that the |structure| option allows the script to return HTML. Your error handling script can examine the error and take various actions depending on the error. Your script gets access to the error through the |error| variable in the namespace. For example: ## Script (Python) "handleError" ##bind namespace=_ ## error=_['error'] if error.type==ZeroDivisionError: return "<p>Can't divide by zero.</p>" else: return """<p>An error occurred.</p> <p>Error type: %s</p> <p>Error value: %s</p>""" % (error.type, error.value) So what happened with namespace when calling Script from ZPT?

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2 Zope instances on a 2 CPU linux server
by Pascal Peregrina 28 Jul '05

28 Jul '05

Hi, I would like to know what if using taskset (CPU affinity utility on linux) to bind each Zope instance to one single CPU can improve overall performance of both instances in any way ? As far a I know, python can not fully take advantage of 2 CPU cause python threads are not OS threads. Thanks. Pascal ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

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product organization
by Nicholas Wieland 28 Jul '05

28 Jul '05

As usual, my question is rather simple :) I'd like to know what are the best practices for product organization - for example I have _tons_ of queries to sqlserver, and my main class is becoming less manageble every time I look at it :/ I like the way SQL integrates in Zope, what I don't like is having a giant __init__ and a lot of _sqlSomething at the end of the class. Can I associate queries to something else than a _variable ? Something like a dictionary or a class ? Can I move SQL calls outside the initializer ? I'd prefer to have a class for data access and another one to glue all the parts together, maybe I'm plain wrong but I think that my product would be a lot cleaner. What are the best practices for FS based products ? --------------------------------- Yahoo! Mail: gratis 1GB per i messaggi, antispam, antivirus, POP3

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DTML parsing outside of Zope
by Peter Bengtsson 28 Jul '05

28 Jul '05

I would like to be able to parse a very basic DTML string (a ZSQLMethod on the file system actually) outside Zope, ie. without having the whole zserver running. The DTML inside the string is very basic. It doesn't use REQUEST or aqcuisition. It's using <dtml-if "1==2"> and stuff. I've tried looking on the source code but it's so damn complicated for me. Can anybody give me a headstart on this? -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

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Re: [Zope] Split a ZODB
by Yuri 28 Jul '05

28 Jul '05

Lennart Regebro wrote: >On 7/28/05, Yuri <yurj(a)alfa.it> wrote: > > >>Hi! >> >> How can I split a Zodb? I mean, I have a big folder which I would like >>to became a separate ZODB file >> >> > >Well, I suspect the simplest way is to copy the ZODB and delete >everything that shouldn't be in it. Export and import could >theoretically work to. I havent't tried any of them with really big >ZODBs though. > > > Good! Anyway, some command line tools could help... zodb operations can take longer time (for example, changing the name of the upper folder wake up all the "contained" objects...)

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Split a ZODB
by Yuri 28 Jul '05

28 Jul '05

Hi! How can I split a Zodb? I mean, I have a big folder which I would like to became a separate ZODB file to mount on the main one. In unix I would move all the files of that folder on another partition, then mount it on that folder.

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RE: [Zope] About Zope 2.8.1
by Pascal Peregrina 28 Jul '05

28 Jul '05

Ok thanks... Pascal -----Message d'origine----- De : Andreas Jung [mailto:lists@andreas-jung.com] Envoyé : jeudi 28 juillet 2005 09:33 À : Pascal Peregrina; 'zope(a)zope.org' Objet : Re: [Zope] About Zope 2.8.1 --On 28. Juli 2005 08:29:11 +0100 Pascal Peregrina <Pperegrina(a)Lastminute.com> wrote: > Hi, > > I have a doubt... > > I would like to know if all the fixes included in Zope 2.7.7 (that was out > after 2.8.0) will be included in 2.8.1, like for example : > * Collector #1781: made create_mount_points ZConfig option actually work > (thanks to Dieter Maurer for the patch). > * Collector #1797: when a File/Image object returned a "304" response code > in response to an If-Modified-Since request, it did not collaborate with > any cache managers. It used to, and it has been changed back to do so. > Thanks to d2m and Bertrand Croq. You can check this yourself by reading doc/CHANGES.txt > > More generally, what will be the relationship between new Zope 2.7.x > versions fixes (will there be new versions ?) and Zope 2.8.x fixes ? 2.7 and 2.8 are the current maintained Zope versions. Fixes should be made for both versions ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

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About Zope 2.8.1
by Pascal Peregrina 28 Jul '05

28 Jul '05

Hi, I have a doubt... I would like to know if all the fixes included in Zope 2.7.7 (that was out after 2.8.0) will be included in 2.8.1, like for example : * Collector #1781: made create_mount_points ZConfig option actually work (thanks to Dieter Maurer for the patch). * Collector #1797: when a File/Image object returned a "304" response code in response to an If-Modified-Since request, it did not collaborate with any cache managers. It used to, and it has been changed back to do so. Thanks to d2m and Bertrand Croq. More generally, what will be the relationship between new Zope 2.7.x versions fixes (will there be new versions ?) and Zope 2.8.x fixes ? Thanks. Pascal ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

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Zope 2.8.1 beta 1 released
by Andreas Jung 28 Jul '05

28 Jul '05

Hi all, on behalf of Zope Corporation and the Zope community I am pleased to announce the release of Zope 2.8.1b1. You can download Zope 2.8.1b1 from http://www.zope.org/Products/Zope/2.8.1b1/ Some new features of Zope 2.8: - ZODB 3.4 with MVCC (multi version concurrency control) support. MVCC solves nearly every problem with ZODB read-conflict errors which is very important for high-traffic Zope sites. - Extension Classes were rewritten as Python new-style classes making all features of Python new-style classes available in Zope objects. This includes support for cyclic garbage collection. - Integration of Zope 3 technologies through Five (see http://codespeak.net/z3/five/) For more information on what is new in this release, see the CHANGES.txt files for the release: http://www.zope.org/Products/Zope/2.8.1b1/CHANGES.txt See also: http://www.zope.org/Wikis/DevSite/Projects/Zope2.8/OverView Please bring all the bugs you have found to the Zope bugtracker: http://collector.zope.org/Zope":http://collector.zope.org/Zope For more information on the available Zope releases, guidance for selecting the right distribution and installation instructions, please see: http://www.plope.com/Books/2_7Edition/InstallingZope.stx -- Andreas Jung (andreas at zopyx dot com)

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