October 2002 - Zope - Zope lists

listen
by Klinger Christian 28 Oct '02

28 Oct '02

Hallo Liste wieder mal ein kleines Problem ich habe zwei Listen: a= ('chriss','thomas') b= ('chriss','thomas','gustav') jetzt möchte ich nur die werte haben die nicht doppelt in Liste b und b vorkommen!! also c= ('gustav') gibt es hierfür vielleicht eine funktion ??? mfg christian

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R: [Zope] workflow in zope ?
by Zanotti Michele 28 Oct '02

28 Oct '02

Hello, If you don't use CMF, you can try OpenFlow www.openflow.it. (I think OF developers are porting Openflow to CMF). Michele

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workflow in zope ?
by Girish Vasudeva 28 Oct '02

28 Oct '02

hello guys, can anybody please let me know how to create workflow in Zope and to manage it. Thanks, Girish Trigent Software Ltd. Khanija Bhavan, I Floor, #49, Race Course Road, Bangalore-560 001 Phone: +91 (80) 2268790 Fax: +91 (80) 2268791 Web: www.trigent.com

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RE: [Zope] why run apache in front of zope?
by sean.upton＠uniontrib.com 28 Oct '02

28 Oct '02

Disclaimer: I've done both Squid and Apache, though I definitely fall into the Squid camp. Regardless, I'll agree that Squid or Apache in front of Zope is the right way to do things. Either can do URL rewriting; either can have access controls; either can do caching; either can do SSL acceleration. Apache's URL rewriting is faster (in-process), while Squid's is much more flexible (external helper, I use pyredir: http://freshmeat.net/projects/pyredir - which is in Python, and has simple enough config file rules that put Apache rewrite rules to shame). Apache has strength in support for transfer encodings (mod_gzip); Squid does not. The problem with transfer encoding is that it doesn't usually play well with cached content. It also really is only a benefit for text, since images are usually well-compressed already. This might be good for an e-commerce site. Squid has faster and more tunable caching. This takes load off the app servers better. Given the performance characteristics of the above two statements, which I believe to be true, I would make the following recommendation: If you are running a site with lots of cacheable content (semi-dynamic, like a news site), use Squid. If you are running an e-commerce site, use Apache, and get the benefits of transfer encoding on your dynamic textual pages that are not likely cacheable. Sean -----Original Message----- From: David Hart [mailto:dhart@atlantisblue.com.au] Sent: Sunday, October 27, 2002 9:32 PM To: Zope Org Subject: Re: [Zope] why run apache in front of zope? On servers I administer, we do virtual hosting for many kinds of websites on the same server: filesystem+CGI, filesystem+PHP4, and Zope. Apache provides a convenient and standard way to do virtual hosting. It's easy to front-end Zope sites with mod_proxy, plus I can enable gzip compression on any kind of site with mod_gzip and enable SSL encryption any kind of site with mod_ssl. -dave Marc Lindahl wrote: >I asked the same question and concluded there's no benefit I can see - I >ended up running SQUID in front of Zserver which seems to be just dandy, and >SQUID offers security comparable (afik) to apache, if not better. > >on 10/19/02 9:05 PM, Garry Galinsky at garry(a)galinsky.net scrivened: > > >>This may be an obvious question to many, but not to me... why do so many >>people run Zope behind an Apache server? What are the benefits of an >>Apache server, or otherwise, what are the limitations of the Zope web >>server? I currently run Zope alone and am evaluating the benefits of >>use Apache. Thanks. >> >>Garry Galinsky >> >> _______________________________________________ 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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why run apache in front of zope?
by Garry Galinsky 28 Oct '02

28 Oct '02

This may be an obvious question to many, but not to me... why do so many people run Zope behind an Apache server? What are the benefits of an Apache server, or otherwise, what are the limitations of the Zope web server? I currently run Zope alone and am evaluating the benefits of use Apache. Thanks. Garry Galinsky garry(a)galinsky.net (403) 667-4777 (403) 667-4744 Fax

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frustrated by inability to introspect...
by Skip Montanaro 28 Oct '02

28 Oct '02

I have the following little snippet of pt code: <form action="edit_list"> <select name="listname"> <option tal:repeat="item container/enumerate_lists" tal:content="item">list</option> </select> <input type="submit" value="Edit"> </form> container/enumerate_lists is a ZSQL method that performs a simple query: select listname from mailinglists All I want to do is display the listnames as form option values. I can't figure out what attributes "item" has. The dir() builtin isn't exposed as far as I can tell. I've been wandering all over the Zope Book for about 20 minutes and have so far been unable to find the attributes associated with the "item" object. Where should I be looking? Is there a rough Zope equivalent to >>> dir("abc") ['__add__', '__class__', '__contains__', '__delattr__', '__doc__', '__eq__', '__ge__', '__getattribute__', '__getitem__', '__getslice__', '__gt__', '__hash__', '__init__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__repr__', '__rmul__', '__setattr__', '__str__', 'capitalize', 'center', 'count', 'decode', 'encode', 'endswith', 'expandtabs', 'find', 'index', 'isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'replace', 'rfind', 'rindex', 'rjust', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill'] or >>> print "".capitalize.__doc__ S.capitalize() -> string Return a copy of the string S with only its first character capitalized. ? Thx, -- Skip Montanaro - skip(a)pobox.com http://www.mojam.com/ http://www.musi-cal.com/

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RE: [Zope] Re: [Zope-CMF] Using XRon to backup my portal
by sean.upton＠uniontrib.com 28 Oct '02

28 Oct '02

In theory, if you are not dependent upon use of ZODB versions, consideration of DirectoryStorage may be warranted: it has a 'snapshot' mode that defers new transactions to a temporary holding directory while the main directories containing objects are frozen, allowing you to use standard Unix backup tools like tar/cpio+find for incremental backup and/or replication. It should be noted that DirectoryStorage also includes a backup.py script that uses the storage to get a list of changed files that will work as a replacement for using the 'find' command. Once the full and/or incremental backup is complete, the storage can leave snapshot mode and all transactions in the holding directory are flushed into the main directory (asynchronously, I think). http://dirstorage.sf.net Cheers, Sean -----Original Message----- From: Jens Vagelpohl [mailto:jens@zope.com] Sent: Sunday, October 27, 2002 7:54 AM To: Ausum Studio Cc: zope(a)zope.org Subject: Re: [Zope] Re: [Zope-CMF] Using XRon to backup my portal i have never seen it that the original file is "frozen" during that copy operation. i have successfully copied Data.fs files up to 5 GB (on linux) without any indication that the website had any trouble. if you can verify that the original turns "read-only" during the copy then that could be a windoze-only thing. jens On Sunday, Oct 27, 2002, at 01:05 US/Eastern, Ausum Studio wrote: > Just a quick question about it: > > What happens to the ongoing transactions? I'm using W2K and from other > large-file copies I've done it looks like the original file is frozen > to > changes, unless it's completely uploaded in memory. > > Do I need to stop Zope in order to allow the OS to perform the copy? > > Thanks in advance, > _______________________________________________ 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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RE: [Zope] Squishdot Error on Zope 2.6.0
by sean.upton＠uniontrib.com 28 Oct '02

28 Oct '02

A temporary workaround is easy enough: view the traceback in an error log item (new to 2.6) and comment out the offending line of code in the Squishdot product. I can't remember which line in which file, but it is the one that tries to delete the 'summary' metadata entry (I think this is line 155 in SquishSite.py). Either that, or wrap this in try/except (which is what I did). This should be enough to get Squishdot running with Zope 2.6.0 (I only tested a while back in Zope 2.6a, though). Sean -----Original Message----- From: Jens Vagelpohl [mailto:jens@zope.com] Sent: Sunday, October 27, 2002 1:33 PM To: viriya Cc: zope(a)zope.org Subject: Re: [Zope] Squishdot Error on Zope 2.6.0 the squishdot code tries to delete a catalog metadata column without even checking if this column is in the catalog at all. bad coding. i suggest you get in touch with the maintainer (i believe it is chris withers) and describe the problem to him. jens On Sunday, Oct 27, 2002, at 15:49 US/Eastern, viriya wrote: > > Hi, > I install new Zope-2.6.0 on FreeBSD 4.6.2 and add Squishdot 1.4.1 > products with no error message found in control pannel but when I add > new squishdot site or zexp from my backup import a message show : > Error Value: list.index(x): x not in list > Site Error Log at /error_log > Traceback (innermost last): > Module ZPublisher.Publish, line 98, in publish > Module ZPublisher.mapply, line 88, in mapply > Module ZPublisher.Publish, line 39, in call_object > Module Products.Squishdot, line 49, in manage_addSquishdot > Module Products.Squishdot.SquishSite, line 182, in __init__ > Module Products.Squishdot.SquishSite, line 155, in _buildIndexing > Module Products.ZCatalog.Catalog, line 208, in delColumn > ValueError: list.index(x): x not in list > Do you have any suggestion to solve this problem? > Thank, > Viriya _______________________________________________ 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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Zope/Postgres problem with change to CST
by Tim Wilson 28 Oct '02

28 Oct '02

Hi everyone, I've built a small database application with Zope, PostgreSQL and ZPsycopgDA. Unfortunately, since we in the central time zone of the U.S. have switched from Daylight Saving Time to Standard Time, my app is now generating errors. Here's a Z SQL method that illustrates the problem: --snip-- SELECT event.event_id, event_name, event_type, start_time, is_away, org_name, activity_name, address, city FROM event_participant, event, participant, location WHERE <dtml-sqltest expr="ZopeTime().earliestTime()" column="event.start_time" op="gt" type="string"> AND <dtml-sqltest expr="ZopeTime().latestTime() + numdays" column="event.start_time" op="lt" type="string"> AND <dtml-sqltest org_name column="participant.org_name" op="eq" type="string"> AND event_participant.event_id = event.event_id AND event_participant.participant_id = participant.participant_id AND location.location_id = event.location_id ORDER BY start_time --snip-- The following error is produced when this Z SQL method is called: --snip-- Error, psycopg.ProgrammingError: ERROR: Bad timestamp external representation '2002/11/01 23:59:59 US/Central' SELECT event.event_id, event_name, event_type, start_time, is_away, org_name, activity_name, address, city FROM event_participant, event, participant, location WHERE event.start_time > '2002/10/27' AND event.start_time < '2002/11/01 23:59:59 US/Central' AND participant.org_name = 'Henry Sibley High School' AND event_participant.event_id = event.event_id AND event_participant.participant_id = participant.participant_id AND location.location_id = event.location_id ORDER BY start_time -------------------------------------------------------------------------------- SQL used: SELECT event.event_id, event_name, event_type, start_time, is_away, org_name, activity_name, address, city FROM event_participant, event, participant, location WHERE event.start_time > '2002/10/27' AND event.start_time < '2002/11/01 23:59:59 US/Central' AND participant.org_name = 'Henry Sibley High School' AND event_participant.event_id = event.event_id AND event_participant.participant_id = participant.participant_id AND location.location_id = event.location_id ORDER BY start_time --snip-- Anyone else seeing something like this? BTW, this is Zope 2.5.1, Python 2.1.3 on Debian Linux. -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson(a)visi.com | <dtml-var pithy_quote> | http://linux.com

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Re: [Zope] MailHost and 2.6.0
by Lennart Regebro 28 Oct '02

28 Oct '02

> Module Products.MailHost.MailHost, line 125, in send > TypeError: _send() takes exactly 3 arguments (4 given) > > Can anyone shed some light on this? Not really, no. _send() in 2.6.0 takes exactly 4 arguments, so how you can get an error claiming _send() takes exactly 3 arguments is totally beyond me. > Looking at line 125 of MailHost.py you get this... > self._send(mfrom, mto, messageText) > > Whereas on the 2.5.1 version you get this (after much header manipulations), > self._send( headers, messageText ) Yes, this is correct. The interface of _send() has changed. Since this is only used by MailHost itself, it doesn't affect how you use MailHost. send() hasn't changed, so the public interfaces are exactly the same. Best Regards Lennart Regebro Torped Strategi och Kommunikation AB (ps I'm not on the zope(a)zope.org mailinglist, so if anybody is going to reply, please cc me).

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