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A question about Zope architecture....
by jiva＠devware.com 19 Feb '00

19 Feb '00

With Zope's acquisition model, doesn't it lead to a horribly cluttered root folder? How do you avoid getting the root folder cluttered with a bunch of junk just because it's used in sub projects underneath it? -- If we all work together, we can totally disrupt the system.

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bug or feature?
by Sam Gendler 19 Feb '00

19 Feb '00

I have a very compmlex and expensive query that returns a large number of results, which are batched across many pages. When I don't enable caching, the database gets queried once for every next page (of which there are many), so I tried to enable caching. Now I get the same results on every page. This seems to me to be a bug, since I would expect the query to be able to display any subset of the results stored in the cache. Does anyone know a workaround that doesn't require Zope to hit the DB on every page, or am I SOL. --sam -- -------------------------- Sam Gendler CTO, Impossible, Inc. 1222 State St. Suite 250 Santa Barbara, CA. 93101 p: 805-560-0508 f: 805-560-0608 c: 805-689-1191 e: sgendler(a)impossible.com

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advanced SQL properties question
by Sam Gendler 19 Feb '00

19 Feb '00

Does the 'maximum number of results to cache' value refer to the number of different result sets that get cached for the same ZSQL method, or is it the number of rows that get cached? Also, is spacew pre-allocated, so do I want to worry about setting values too high for queries that will only ever return a single result set, or does it not matter? If I set the max rows to 0, does that return an infinite number of rows? --sam -- -------------------------- Sam Gendler CTO, Impossible, Inc. 1222 State St. Suite 250 Santa Barbara, CA. 93101 p: 805-560-0508 f: 805-560-0608 c: 805-689-1191 e: sgendler(a)impossible.com

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Problem with new Banner System (and workaround
by Bill Anderson 19 Feb '00

19 Feb '00

Umm ... seem to have generated an issue with Renderable in the first traceback. If I put my new banner product into use with <dtml-var VBanner>, I get this: Traceback (innermost last): File /home/web/www.libc.org/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /home/web/www.libc.org/lib/python/ZPublisher/Publish.py, line 179, in publish File /home/web/www.libc.org/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /home/web/www.libc.org/lib/python/ZPublisher/Publish.py, line 165, in publish File /home/web/www.libc.org/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: Main) File /home/web/www.libc.org/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: Main) File /home/web/www.libc.org/lib/python/OFS/DTMLDocument.py, line 166, in __call__ (Object: Main) File /home/web/www.libc.org/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: Main) File /home/web/www.libc.org/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: standard_html_header) File /home/web/www.libc.org/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: standard_html_header) File /home/web/www.libc.org/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: LeftColumn) File /home/web/www.libc.org/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: LeftColumn) File /usr/lib/zope/lib/python/Products/Renderable/Renderable.py, line 10, in __str__ (Object: Renderable) TypeError: (see above) If I use: <dtml-var "VBanner()"> I get: <!-- Traceback (innermost last): File /home/web/Vhosts/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /home/web/Vhosts/lib/python/ZPublisher/Publish.py, line 179, in publish File /home/web/Vhosts/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /home/web/Vhosts/lib/python/ZPublisher/Publish.py, line 165, in publish File /home/web/Vhosts/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /home/web/Vhosts/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: index_html) File /home/web/Vhosts/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: index_html) File /home/web/Vhosts/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: index_html) File /home/web/Vhosts/lib/python/DocumentTemplate/DT_Util.py, line 335, in eval (Object: VBanner()) (Info: VBanner) File <string>, line 0, in ? AttributeError: (see above) If I call it directly, all is fine. Or if I use <dtml-var "VBanner.get_banner()"> it works as expected. Any ideas? What went wrong? TIA, Bill -- In flying I have learned that carelessness and overconfidence are usually far more dangerous than deliberately accepted risks. -- Wilbur Wright in a letter to his father, September 1900

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Base href (AGAIN)
by Sam Gendler 19 Feb '00

19 Feb '00

I don't have access to my email archive, so I can't search, and the eGroups search returns 1400 messages, so can someone briefly send me a note about how to get rid of the base href at the top of every document? --sam -- -------------------------- Sam Gendler CTO, Impossible, Inc. 1222 State St. Suite 250 Santa Barbara, CA. 93101 p: 805-560-0508 f: 805-560-0608 c: 805-689-1191 e: sgendler(a)impossible.com

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RE: [Zope] zope on shared disk
by Martijn Pieters 19 Feb '00

19 Feb '00

From: kdie [mailto:webheads@ns1.emedia.com.my] > > > >I don't know about Samba, but Jim Fulton warns against _accessing_ > >Data.fs over NFS. It is a surefire way of corrupting it. > > > > thanks for the warning. > > >About sharing the Data.fs between multiple Zope processes: > Don't do it, > >it doesn't work. The Data.fs file is locked by the Zope > process using it > >for a reason. > > > >For load balancing like this yuo will have to go with either ZEO, or > >some form of XML-RPC based load balancing (ie. write your own). > > > i'm currently loking at eddie(http://www.eddieware.org) to do the load > balancing for me. eddie can do a lot of things. one of them > is redirecting > request according to METHOD. so, if it's a post, i'll > redirect it to one > particular server. if it's a get, it goes everywhere. i > would think that > rsync can update data from the machine that handles post > request to other > machines. so, in a sense, i'm using one Data.fs, but > distribute all GETs > to all available servers. but i'm not quite sure of the > update frequency. > > > comments, pointers? You can't use rsync on Data.fs when Zope is running though. You will have to shut down both the source Zope (to prevent writs during sync) and the target Zope. The latter because FileStorage wasn't designed to have it's datastore shift around underneath it. What do you need load balancing for anyway? Is it for scalability, or for reliability? If you want scalability, surely the cost for ZEO can be justified? Also, do realize that Zope on a single machine can scale pretty awesome. We recon ZEO is only necessary for the absolute top range of websites. Zope.org runs on a single machine, just flexing its muscles a bit on 2 million hits per month. If you want reliability, why not have a second machine on standby, to take over in case of failure? I am sure that tweaking FileStorage to hold back from Data.fs for a backup wouldn't be that hard. This is not strictly necessary either, you'd only miss the transaction or so. You can then have the back-up Zope take over when a monitoring process deems it necessary. -- Martijn Pieters, Software Engineer | Digital Creations http://www.digicool.com | Creators of Zope http://www.zope.org | mailto:mj@digicool.com ICQ: 4532236 | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 -------------------------------------------

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RE: [Zope] Worldpilot - logon
by Jens Vagelpohl 19 Feb '00

19 Feb '00

that depends on what imap server you are accessing for the mail content. WorldPilot does not "create" users for itself, it asks the imap server that you specified upon instantiating the WorldPilot if the username and password are existing and correct. if you run the standard wu-imap that comes with most linux distros on localhost your login will be your username/password that you use to log into linux. jens -----Original Message----- From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Graham Chiu Sent: Saturday, February 19, 2000 01:26 To: zope(a)zope.org Subject: [Zope] Worldpilot - logon Hi, Installed this product. But how to logon - what's the username and password if any created by default? ------- Regards, Graham Chiu gchiu<at>compkarori.co.nz http://www.compkarori.com/dynamo - The Homebuilt Dynamo http://www.compkarori.com/dbase - The dBase bulletin _______________________________________________ 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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Jet DA
by Jonothan Farr 19 Feb '00

19 Feb '00

I decided to write a database adapter just for fun and education so I slapped together this adapter for the Jet (MS Access) engine using Mark Hammond's infinitely cool win32com extensions. I can't imagine it actually being useful to anyone but it seems to work pretty well and I figure, what the heck? http://www.zope.org/Members/jfarr/Products/ZJetDA --jfarr

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Worldpilot - logon
by Graham Chiu 19 Feb '00

19 Feb '00

Hi, Installed this product. But how to logon - what's the username and password if any created by default? ------- Regards, Graham Chiu gchiu<at>compkarori.co.nz http://www.compkarori.com/dynamo - The Homebuilt Dynamo http://www.compkarori.com/dbase - The dBase bulletin

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Problems with ZClasses...
by jiva＠devware.com 19 Feb '00

19 Feb '00

Okay, I'm trying to grok zclasses. Admitably, my Zope Zen quotient is very low right now, but I'm trying. My problem is, I create a ZClass, and I try to pop an index_html into the ZClass. I can view it from the products screen, but when I create an instance of it and try to access it, it prompts me for a username and password, but I haven't even defined any security on the file. This is in the same folder that I can access other items just fine. What am I missing? -- Man is the only animal that can remain on friendly terms with the victims he intends to eat until he eats them. -- Samuel Butler (1835-1902)

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