- Zope - Zope lists

Controlling cache
by John Poltorak 07 Dec '04

07 Dec '04

Is it possible to specify any preference for certain objects being held in cache? -- John

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manage_menu spins forever on Zope 2.7.0/ZEO
by John Ziniti 07 Dec '04

07 Dec '04

I've got a problem similar to Alexis Roda, described here: http://mail.zope.org/pipermail/zope/2003-January/130237.html This is Zope 2.7.0 on a Linux machine. An added bonus is that I am actually using ZEO, and one of the ZEO clients is having this problem, but the other is not. I have tried to "Debug a Spinning Zope", but the process is not actually using any CPU, and I can't identify any "problems" in gdb. Attempts to PyRun_SimpleString in gdb fail with: """ The program being debugged was signaled while in a function called from GDB. Evaluation of the expression containing the function (malloc) will be abandoned. """ Anyone have any ideas on what I can try next? The ZODB is freshly packed. Does ZEO cache stuff anywhere? Maybe that cache is spoiled on zeoclient2? Thanks in advance, John Ziniti

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Copy to another storage using APE
by Gabriel Genellina 07 Dec '04

07 Dec '04

Hi I'm trying to copy some objects from a FileStorage (data.fs) to another (a file system storage using APE) but I always get this error File "C:\Archivos de programa\ZopeServer\lib\python\Products\Ape\lib\apelib\zodb3\connection.py", line 428, in identify raise InvalidObjectReference, (ZODB.POSException.InvalidObjectReference: Can't refer to <Folder instance at 017C2AD0>, located in Connection at 015ba8bc>, from <ApeConnection at 0173d03c> This used to work in previous versions of APE; I'm using now 0.8.1. I just use _getOb(id) to obtain an object from one place and then _setObject(id, aq_base(obj)) to copy it to another place. With newly created objects the APE storage works fine, only complains when copying objects from another storage. I guess, the object "remembers" its original connection and then cant be stored in another place. But this is exactly what I want, copy things from one storage to another. This is a test script. Sorry if it's a bit long but I most of the code is to set up needed things. === begin === """ This script tries to read a Folder from a FileStorage (data.fs) and write it to a different filesystem-based Ape storage. How to run: create a Folder inside the root (/test) and put something there. The script will create a directory in [ZOPE]/var/test-export which should contain the above folder (but fails). Another folder /test2 (which is created on-the-fly) works fine. """ import os, sys import Zope from Products.Ape import apelib from apelib.zodb3.storage import ApeStorage from apelib.zope2.mapper import create_fs_mapper from apelib.fs.connection import FSConnection from apelib.zodb3.resource import StaticResource from apelib.zodb3.db import ApeDB from ZODB.FileStorage import FileStorage from ZODB.DB import DB from OFS.Folder import Folder from Acquisition import aq_base # Setup FileStorage for reading path_to_datafs=os.path.join(CLIENT_HOME, 'data.fs') fs_storage = FileStorage(path_to_datafs, create=0) dbfs = DB(fs_storage) connfs = dbfs.open() rootfs = connfs.root()['Application'] # Setup export directory path_export=os.path.join(CLIENT_HOME, 'test-export') if os.path.exists(path_export): import shutil shutil.rmtree(path_export,1) # Setup ApeStorage mapper, conns = create_fs_mapper(path_export) resource = StaticResource(mapper) ape_storage = ApeStorage(resource, conns, clear_all=1) dbape = ApeDB(ape_storage, None) connape = dbape.open() if not connape.root().has_key('Application'): from OFS.Application import Application connape.root()['Application'] = Application() get_transaction().commit() rootape = connape.root()['Application'] # just to verify I can create something inside the export directory get_transaction().begin() id = 'test2' obj = Folder() obj.id = obj.title = id rootape._setObject(id, aq_base(obj)) get_transaction().commit() # copy test folder get_transaction().begin() id = 'test' obj = rootfs[id] # _getOb(id) rootape._setObject(id, aq_base(obj)) get_transaction().commit() dbape.close() dbfs.close() === end === Gabriel Genellina Softlab SRL

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Python switcheroo
by Ken Ara 07 Dec '04

07 Dec '04

Hi all, Recently, I've had to restart Zope a few times from the command line. Suddenly I noticed this: > /usr/local/www/Zope/zope01/bin/zopectl stop . . . . . . daemon process stopped > /usr/local/www/Zope/zope01/bin/zopectl start . daemon process started, pid=55616 > /usr/local/www/Zope/zope01/bin/zopectl stop /usr/local/lib/python2.4/whrandom.py:38: DeprecationWarning: the whrandom module is deprecated; please use the random module DeprecationWarning) . . . . . . daemon process stopped > /usr/local/www/Zope/zope01/bin/zopectl start /usr/local/lib/python2.4/whrandom.py:38: DeprecationWarning: the whrandom module is deprecated; please use the random module DeprecationWarning) . daemon process started, pid=9498 Checking my Control Panel, I see this: Python Version 2.4 (#2, Dec 4 2004, 12:47:50) [GCC 2.95.4 20020320 [FreeBSD]] where previously there hed been Python Version 2.3.4 (#2, Sep 6 2004, 12:15:06) [GCC 2.95.4 20020320 [FreeBSD]] Some has been in there messing with my install! (I know exacly where I was on Dec 4 2004, at 12:47:50, it must have been my ISP friend..) Now, Zope won't pack, I've got a couple of corrupted objects and I've developed a case of the hangs... Fortunately, I have a viable Data.fs.old. Help Mr Wizard! How do I get back my old Python? Thanks! Ken __________________________________ Do you Yahoo!? Yahoo! Mail - now with 250MB free storage. Learn more. http://info.mail.yahoo.com/mail_250

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File Object Size
by James Savage 07 Dec '04

07 Dec '04

Anyone know how to retrieve the size of a File object? - James __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com

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RE: [Zope] DTML vs ZTP
by Andy Yates 07 Dec '04

07 Dec '04

> -----Original Message----- > From: zope-bounces+andy=nnu.com(a)zope.org [mailto:zope- > bounces+andy=nnu.com(a)zope.org] On Behalf Of Paul Winkler > Sent: Tuesday, December 07, 2004 9:05 AM > To: Zope > Subject: Re: [Zope] DTML vs ZTP > > On Tue, Dec 07, 2004 at 09:24:21AM -0500, Ian Nunn wrote: > > I'm a third of the way through the Zope Book and understand the > difference as it is written. As you can appreciate, in learning a new > technology, what is missing is the experience that would guide your focus. > What I would like is an idea of how real world developers use these in the > following senses. Do you use one exclusively (in conjunction with Python)? > Do you use primarily one or the other? Do you use both roughly equally? > Are there classes of applications where you have found one is preferred? > Your advice would be welcome. > > > > I primarily use ZPT largely because it's less "do what I mean". > DTML has too much magic which is hard to debug. > Not that ZPT is perfect :-) > > I try to use DTML only for simple variable substitution in non-XML > documents such as dynamically generated CSS. > e.g. > > .myclass { > background-color: &dtml-mycolor;; > } > I do the same thing with ZPT .myclass { background-color: <tal:block tal:replace="mycolor" />; } > Also for ZSQLMethods. > > -- > > Paul Winkler > http://www.slinkp.com > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev )

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RES: [Zope] Cookie Crumbler
by Jose Henrique dos Reis 07 Dec '04

07 Dec '04

Look at: http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html#authenticati… http://his.biologie.hu-berlin.de/PloneBook/ch9.rst -----Mensagem original----- De: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]Em nome de Pablo Ziliani Enviada em: terça-feira, 7 de dezembro de 2004 13:56 Para: zope(a)zope.org Assunto: [Zope] Cookie Crumbler Hi all, I'm looking for some Cookie Crumbler documentation/howto or the like, can anybody point me to the right place? No, the source is not well documented and Google didn't helped much either. TIA, Pablo _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )

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Cookie Crumbler
by Pablo Ziliani 07 Dec '04

07 Dec '04

Hi all, I'm looking for some Cookie Crumbler documentation/howto or the like, can anybody point me to the right place? No, the source is not well documented and Google didn't helped much either. TIA, Pablo

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Newbie: TAL Conditions
by Tom_Rectenwald＠carmax.com 07 Dec '04

07 Dec '04

Hello all, I am a newbie at Zope, slowly traversing the learning curve. I am focusing on TAL currently, and am quite a bit confused with the tal:condition syntax. I have a Z SQL Method that selects all records from a table in a PostgreSQL database. This method is called "getTransfers". I then have a Page Template called "displayTransfers" that displays the results as tabular HTML. This works fine. However, where there isn't a record (i.e. an empty string), a <TD> will not be defined so that it leaves ugly gaps in the table. To ensure that a '<TD> </TD>' replaces an empty string '' I added two tal:condition statements. This works, but is sort of ugly looking as, in my head, it is the equivalent of two 'if' statements when it should be an 'if/else'. The below code works, however is there a cleaner way to do this? ### START CODE ### <table border="1"> <tr><th>Date</th><th>Server</th></tr> <tr tal:repeat="transfer container/getTransfers"> <td tal:content="structure transfer/time_stamp">time_stamp</td> <td tal:condition="python: transfer.server==''"> </td> <td tal:condition="python: transfer.server!=''" tal:content="structure transfer/server">server</td> </tr> </table> ### END CODE ### I'm from a PHP/Perl/mySQL/postgreSQL background and am new to OOP, Python and Zope so I greatly appreciate any assistance with this. Regards, Tom

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RE: [Zope] Newbie: TAL Conditions
by Pascal Peregrina 07 Dec '04

07 Dec '04

You could wrap each <td></td> in a <span tal:omit-tag="" tal:condition=""></span> The tal:omit-tag="" will prevent the <span></span> to be output in the resulting HTML code. Pascal -----Message d'origine----- De : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]De la part de Tom_Rectenwald(a)carmax.com Envoyé : mardi 7 décembre 2004 15:21 À : zope(a)zope.org Objet : [Zope] Newbie: TAL Conditions Hello all, I am a newbie at Zope, slowly traversing the learning curve. I am focusing on TAL currently, and am quite a bit confused with the tal:condition syntax. I have a Z SQL Method that selects all records from a table in a PostgreSQL database. This method is called "getTransfers". I then have a Page Template called "displayTransfers" that displays the results as tabular HTML. This works fine. However, where there isn't a record (i.e. an empty string), a <TD> will not be defined so that it leaves ugly gaps in the table. To ensure that a '<TD> </TD>' replaces an empty string '' I added two tal:condition statements. This works, but is sort of ugly looking as, in my head, it is the equivalent of two 'if' statements when it should be an 'if/else'. The below code works, however is there a cleaner way to do this? ### START CODE ### <table border="1"> <tr><th>Date</th><th>Server</th></tr> <tr tal:repeat="transfer container/getTransfers"> <td tal:content="structure transfer/time_stamp">time_stamp</td> <td tal:condition="python: transfer.server==''"> </td> <td tal:condition="python: transfer.server!=''" tal:content="structure transfer/server">server</td> </tr> </table> ### END CODE ### I'm from a PHP/Perl/mySQL/postgreSQL background and am new to OOP, Python and Zope so I greatly appreciate any assistance with this. Regards, Tom ********************************************************************** 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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