March 2003 - Zope - Zope lists

Read conflicts
by Jakub Wisniowski 06 Mar '03

06 Mar '03

Hi all I've got some pages in my Zope application that display results of SQL query (results returned by Z-SQL Method) and check for existence of some data in SESSION object. There is nothing more on the pages but one thing - pages are refreshed every 30 seconds. I also have some users (really not many) that constantly monitor these pages. The last thing I've got is some error messages. The error message that displays on page looks like: An error was encountered while publishing this resource. ZODB.POSException.ConflictError Sorry, a site error occurred. Traceback (innermost last): ° Module ZPublisher.Publish, line 150, in publish_module ° Module ZPublisher.Publish, line 127, in publish ° Module ZPublisher.Publish, line 127, in publish ° Module ZPublisher.Publish, line 127, in publish ° Module ZPublisher.Publish, line 122, in publish ° Module Zope.App.startup, line 142, in zpublisher_exception_hook ° Module ZPublisher.Publish, line 102, in publish ° Module Zope.App.startup, line 200, in commit ° Module ZODB.Transaction, line 235, in commit ° Module ZODB.Transaction, line 349, in _commit_objects ° Module ZODB.Connection, line 391, in commit ° __traceback_info__: (('BTrees.OOBTree', 'OOBTree'), '\x00\x00\x00\x00\x00\x00\x01\xcd', '') ° Module Products.TemporaryFolder.TemporaryStorage, line 134, in store ConflictError: database conflict error (oid 00000000000001cd, serial was 034b62206010624c, now 034b621e679953b3) This error usually disappears after refreshing the page (but confuses the users). Some of error messages that are logged in my "stupid" log: 2003-03-06T09:50:36 INFO(0) ZODB conflict error at /ctt/cmp/info/yesterday/midday/index_html (138 conflicts since startup at 2003-03-05T16:20:08) ------ 2003-03-06T09:52:29 INFO(0) ZODB conflict error at /ctt/firm/props (139 conflicts since startup at 2003-03-05T16:20:08) ------ 2003-03-06T09:52:39 INFO(0) ZODB conflict error at /ctt/firm/props (140 conflicts since startup at 2003-03-05T16:20:08) ------ 2003-03-06T09:52:49 INFO(0) ZODB conflict error at /ctt/firm/index_html (141 conflicts since startup at 2003-03-05T16:20:08) ------ 2003-03-06T09:53:08 INFO(0) ZODB conflict error at /ctt/cmp/info/yesterday/index_html (142 conflicts since startup at 2003-03-05T16:20:08) I have searched mailing lists, but I didn't find the answer for the question - what's going on? and what interests me most: what to do with this? I've found some sugestions that such errors called read conflicts may be caused by using the session. Is that true? Why the session? I don't think that I can stop using session object. Any more suggestions? Any solutions? There must be any simple solution - my app has only few users! Thanks -- Jakub Wisniowski

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SOLVED: [Zope] NuxUserGroups and CMF not working
by baiewola＠netscape.net 06 Mar '03

06 Mar '03

The CMF product folders were not being found. I moved them, and everything works now. Dieter Maurer <dieter(a)handshake.de> wrote: >baiewola(a)netscape.net wrote at 2003-3-4 14:57 -0500: > > ... > > There's nothing at all in my logs about CMF, but here's what the log has to say abut NuxUserGroups: > > File /zopedirectory/lib/python/Products/NuxUserGroups/CatalogToolWithGroups.py, line 17, in ? > > (Object: rolesForPermissionOn) > > ImportError: No module named CMFCore.CatalogTool > >Can you check what code you find in line 17 of "CatalogToolWithGroups.py". >It should read somehow like "Products.CMFCore.CatalogTool". > > >Dieter > __________________________________________________________________ The NEW Netscape 7.0 browser is now available. Upgrade now! http://channels.netscape.com/ns/browsers/download.jsp Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/

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Proxies for Z SQL Methods
by Roger Fisher 06 Mar '03

06 Mar '03

I have a Z SQL method that wants to use document_src. Unlike a DTML Method, there is no "proxy" tab for me to set the Manager permission. As a workaround, I execute the document_src in the calling DTML method and pass the result as a parameter to the Z SQL method.... but I wonder if there is a more elegant solution?

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Some VHM questions
by AM 06 Mar '03

06 Mar '03

I have a zope site running behind apache 2.0. The zope istnace has a VHM in there that maps to a domain. I had a few questions about the VHM workings. In my site the primary structure is as such: / /nbs_online/ ( maps to nbs.neuro-bs.com ) /nbs_online/information /nbs_online/secure ( maps to secure.neuro-bs.com ) /test (doesnt map to anything ) The required rewrite rules are in the httpd.conf and ssl.conf The problem is I can access /test or for that matter any other URL outside nbs_online via the url nbs.neuro-bs.com/test or whatever the folder name is. The rewrite rules are given below. My question is why?? Secondly the rewrite rules in my virtualhost nbs.neuro-bs.com (httpd.conf) RewriteRule ^/secure/(.*) https://secure.neuro-bs.com/$1 [R] RewriteRule ^/(.*) http://192.168.10.172:8080/VirtualHostBase/http/nbs.neuro-bs.com:80/nbs_onl… [L,P] and the rewrite rules in my ssl.conf for virtualhost (secure.neuro-bs.com) RewriteRule ^/(.*) http://192.168.10.172:8080/VirtualHostBase/https/secure.neuro-bs.com:443/nb… [L,P] However is you look at the folder structure above, can anybody explain why I can access the folder information via: https://secure.neuro-bs.com/information which should be mapping to https://nbs.neuro-bs.com/secure/information and thus raising a 404?? TIA AM -- ================================================================== Aseem Mohanty Neurobehavioral Systems Inc, 828 San Pablo Ave, Albany, CA 94706 (R) 510 7696011 (M) 510 3014871 (O) 510 5279231 ================================================================== "I saw `cout' being shifted "Hello world" times to the left and stopped right there!!" -- Steve Gonedes ==================================================================

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Re: How to convert string to object?
by Josef Meile 06 Mar '03

06 Mar '03

--- In zope(a)yahoogroups.com, "Josef Meile" <josef.meile@i...> wrote: > > I tried do following in index_html: > > > > <dtml-var obj> > > > > But this echoes only plain text ('path.to.object.file') and not the > > object's content. I need to find some way how to convert this string to > > object, so Zope (or Python) can understand it as an object and display its > > content. Is there some way? > You could try: > > <dtml-var "REQUEST.resolve_url(obj)"> Opss, I saw your path is separated with dots '.', so I guess you will have to convert them to slashes '/'. I think you will also need to add 'http://www.mysite.com/' before your path

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zope crashes on first hit
by Bill Seitz 06 Mar '03

06 Mar '03

All the sudden my zope (v2.5.1 running on Win98) is crashing while processing its first hit. This seems true regardless of the URL requests (manage, manage_main, index_html), though it's possible I'm getting 1 hit sometimes before it dies. I think this has been triggered by an ugly crash requiring a hard reboot of my machine. I've rebooted multiple times since then... Here's what I see in the DOS window: 2003-03-04T18:50:21 ERROR(200) ZServer uncaptured python exception, closing channel <ZServer.HTTPServer.zhttp_channel connected 127.0.0.1:1247 at 0x1d59b2c channel#: 0 requests:> (exceptions.IOError:[Errno 9] Bad file descriptor [D:\Zope\WebSeitz\ZServer\medusa\asyncore.py|poll|107] [D:\Zope\WebSeitz\ZServer\medusa\asyncore.py|handle_write_event|398] [D:\Zope\WebSeitz\ZServer\medusa\asynchat.py|handle_write|146] [D:\Zope\WebSeitz\ZServer\medusa\asynchat.py|initiate_send|208] [D:\Zope\WebSeitz\ZServer\medusa\asynchat.py|refill_buffer|195] [D:\Zope\WebSeitz\ZServer\Producers.py|more|36] [D:\Zope\WebSeitz\ZServer\medusa\http_server.py|log|289] [D:\Zope\WebSeitz\ZServer\medusa\logger.py|log|247] [D:\Zope\WebSeitz\ZServer\medusa\logger.py|log|77] [D:\Zope\WebSeitz\ZServer\medusa\logger.py|write|53] [D:\Zope\WebSeitz\ZServer\medusa\logger.py|maybe_flush|65]) Traceback (most recent call last): File "D:\Zope\WebSeitz\z2.py", line 774, in ? asyncore.loop() File "D:\Zope\WebSeitz\ZServer\medusa\asyncore.py",line 200, in loop poll_fun (timeout, map) File "D:\Zope\WebSeitz\ZServer\medusa\asyncore.py", line 111, in poll obj.handle_error() File "D:\Zope\WebSeitz\ZServer\medusa\http_server.py", line 437, in handle_err or asynchat.async_chat.handle_error (self) File "D:\Zope\WebSeitz\ZServer\medusa\asyncore.py", line 421, in handle_error self.close() File "D:\Zope\WebSeitz\ZServer\HTTPServer.py", line 293, in close p.more() # free up resources held by producer File "D:\Zope\WebSeitz\ZServer\Producers.py", line 36, in more getattr(self.logger, self.method)(self.bytes) File "D:\Zope\WebSeitz\ZServer\medusa\http_server.py", line 289, in log ' - %s [%s] "%s" %d %d "%s" "%s"\n' % ( File "D:\Zope\WebSeitz\ZServer\medusa\logger.py", line 247, in log self.logger.log ('%s%s' % (ip, message)) File "D:\Zope\WebSeitz\ZServer\medusa\logger.py", line 77, in log self.write (message) File "D:\Zope\WebSeitz\ZServer\medusa\logger.py", line 53, in write self.maybe_flush() File "D:\Zope\WebSeitz\ZServer\medusa\logger.py", line 65, in maybe_flush self.file.flush() IOError: [Errno 9] Bad file descriptor __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/

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Re: How to convert string to object?
by Josef Meile 06 Mar '03

06 Mar '03

> I tried do following in index_html: > > <dtml-var obj> > > But this echoes only plain text ('path.to.object.file') and not the > object's content. I need to find some way how to convert this string to > object, so Zope (or Python) can understand it as an object and display its > content. Is there some way? You could try: <dtml-var "REQUEST.resolve_url(obj)"> Regards, Josef

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RE: [Zope] Can I choose my python installation?
by sean.upton＠uniontrib.com 06 Mar '03

06 Mar '03

Your platform makes this hard, as Zope has modules written in C that need to be compiled against the specific version of Python you are using. However, if you are using Python 2.1.3 in both cases, it may work without a recompile. Usually in this case, the worst thing that could happen is a warning that the Python C Module API versions mismatch. Even if this does work, I'm not sure what the mechanics of doing this on Windows are (I suppose this may be difficult and tedious, and require you to know what you are doing). If you have Visual C++, you might just want to compile Zope from source against the Python version you installed. Sean -----Original Message----- From: Micheál Healy [mailto:michael.healy@engitech.ie] Sent: Thursday, March 06, 2003 3:30 AM To: Zope(a)Zope.Org Subject: [Zope] Can I choose my python installation? Hi, If I have python installed on my PC, can I use that installation instead of that installed with Zope? The reason is that I am having trouble installing the win32 library for python on the Zope python instance. It fails to load pywise32.dll(?). I'm using a Win98 machine. TIA, Micheál Micheál Healy Engitech Ltd. 01 6204 516 _______________________________________________ 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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Newbie: Sessions in Zope 2.6.1?
by seila＠gmx.de 06 Mar '03

06 Mar '03

hi all, i have a question concerning the session-management in zope 2.6.1: in which circumstances /exactly/ would i have to create my own session data manager/browser id manager/temporary folder etc? i'm developping my site in a subfolder (and serve it with apache, vhm etc.) and now i don't know if i have to create a new session data manager etc. in my (sub)folder (the zope-book 2.6 doesn't help much in that point). any help appreciated. regards, seila -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!

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Lines with different colors
by Sorin Marti 06 Mar '03

06 Mar '03

Hi all, I am experimenting around with zope and I want to do following thing: I call values from the database and give them out. Now I want each second line in a different color. How do I do that? Thanks in advance Sorin

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