July 2000 - Zope - Zope lists

pcgi not responding ...2.2
by Bill Anderson 15 Jul '00

15 Jul '00

Works fine from ZServer (on port 8101), butpcgi gets: """ pcgi-wrapper(/home/ZSS/libc/Zope.cgi): Connection refused (102) failure during connect to ZServer """ Ideas welcome. -- Do not meddle in the affairs of sysadmins, for they are easy to annoy, and have the root password.

1 0

hard dtml syntax problem
by Jerome Alet 15 Jul '00

15 Jul '00

Hi want to call ZopeFind to find all folders in the current folder which doesn't have got any subfolder. the following query works but returns all folders, even those which have got subfolders: <dtml-let myresult="ZopeFind(this(), obj_metatypes=['Folder'], search_sub=1)"> <dtml-in myresult> ... </dtml-in> So I play a little with the Zope Search Interface and I find that if I type in "not objectValues(['Folder']" (without the double quotes) in the obj_expr (Expression) field then this solves my problem. my question is: How to rewrite my ZopeFind with obj_expr="not objectValues(['Folder'])" ? I've tried with or without quotes (single, double and even triple ones), but with no luck: I've always got a Document Template Parse Error. What is the correct syntax please ? Actually I've added a test inside my dtml-in loop but I think it's stupid because I need the exact result length and I don't want to rebuild a list of matching results since the Zope Search Interface can do it. thanks in advance for any answer. Jerome ALET - alet(a)unice.fr - http://cortex.unice.fr/~jerome Faculte de Medecine de Nice - http://noe.unice.fr - Tel: 04 93 37 76 30 28 Avenue de Valombrose - 06107 NICE Cedex 2 - FRANCE

3 5

Optimization and speed
by Stephan Richter 15 Jul '00

15 Jul '00

Hello everyone, I write this mail, because I could not find anything useful in the archives: I have a pretty big site with quiet a big database (PostGreSQL) in the background. When a site loads I can tell that after about 5 seconds the site is ready to download. The site downloads quickly thereafter if I am on a T1, DSL or Cable Modem connection. But since most of our users have 28.8k and 56k modem connection, we have to optimize for them too. When accessing the site over a modem, it takes a long time to load the site and then it pops up all at once (in IE (AOL) and Netscape). Is there a way that I can send parts of the HTML as it is generated, so that the customer starts seeing information before the entire site is loaded. Our site is about 50% slower than our competitors sites (we are serving 62kB and the competitor has up to 203kB and is 50% faster!!!) which use PHP and ColdFusion. I know that Zope is not slower. I strongly believe it is the HTML output which is not optimized (we are going to speed up the DB connection very soon by dedicating a NIC only for the DB communication). Technical Facts: - Zope 2.1.6+PCGI+Apache - Virtual Hosts for HTTP and HTTPS - PostGreSQL 7.0 (DB size: 50MB), ZPyGreSQLDA, UserDB - ZODB threads: 4 - Web Server: Pentium 500, RH 6.1, 322MB RAM (not all used), 100 MBit NIC - DB Server: Pentium 500, RH 6.1, 322MB RAM (plenty left to use), 100 MBit NIC - dedicated subnet If someone could give me some tips where I should start looking for speed holes, please let me know. Do you think it is the DB which could be so slow and I should cache search results more, are there ZServer/Apache options I can set or anything else in Zope I should have a look at? Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Web2k - Web Design/Development & Technical Project Management

2 1

Delete property woes in ZClasses
by Paul Abrams 15 Jul '00

15 Jul '00

I noticed that when you delete a property in a ZClass, it doesn't actually delete the property in **instances** of that ZClass! This leaves properties lying around where they can be inadvertently acquired, causing problems that are difficult to trace. Has anyone gotten bitten by this, or know of a solution? Cheers, -Paul __________________________________________________ Do You Yahoo!? Get Yahoo! Mail � Free email you can access from anywhere! http://mail.yahoo.com/

5 5

ZPygres connection problem
by Oleg Broytmann 15 Jul '00

15 Jul '00

Hello! I did an experiment (after having problems connecting Zope to Postgres) - I stopped ZServer and restared Zope in PCGI-only mode. I opened connection successfully! I stopped PCGI and restarted ZServer. I again got BadRequest (cannot connect to server). Anyone have an idea why Zope+ZServer cannot connect, while Zope-PCGI can? Deeper investigation did not reveal any difference - environments are the same, I can connect from command line, I can even import DB.py (from the Database Adapter) and connect through it from command line... Oleg. (All opinions are mine and not of my employer) ---- Oleg Broytmann Foundation for Effective Policies phd(a)phd.russ.ru Programmers don't die, they just GOSUB without RETURN.

1 2

load_site stopped working in 2.2.0
by Oleg Broytmann 15 Jul '00

15 Jul '00

Hi! I've got the error: File "./lib/python/ZPublisher/Client.py", line 221, in __call__ bci.NotAvailable: argument 1: expected read-only character buffer, tuple found (File: http://sun.med.ru/pcgi/manage_addFolder Line: id=HomePage.local) None None for None What's this? Oleg. (All opinions are mine and not of my employer) ---- Oleg Broytmann Foundation for Effective Policies phd(a)phd.russ.ru Programmers don't die, they just GOSUB without RETURN.

1 0

sending namespace to the frames?
by danchik 15 Jul '00

15 Jul '00

if I submit a form to some page that has frames, how do I pass the REQUEST namespace to those frames????

2 1

RE: [Zope] Hot fix and 2.20
by Brian Lloyd 15 Jul '00

15 Jul '00

> Do I have this right? I do not have to install the > hot fix if I just installed the recently released > version 2.2.0 final. correct? > > -mjm That is correct - the hotfix is only required for sites running versions prior to 2.2. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

1 0

Cannot install PTK
by Mario Premke 15 Jul '00

15 Jul '00

Hi, I installed Zope2.2.0 and downloaded PTK0.7.1, installed it, restarted Zope and then tried to import DemoPortal.zexp, but after pressing import an error message is shown and there is no PTKBase or PTKDemo in the Available Objects ... Any ideas? Mario

2 1

Hot fix and 2.20
by michael montagne 15 Jul '00

15 Jul '00

Do I have this right? I do not have to install the hot fix if I just installed the recently released version 2.2.0 final. correct? -mjm

3 2