- Zope-Dev - Zope lists

TAL/ZPT expand-macros on when FTP get?
by Brad Clements 19 May '01

19 May '01

One thing I'd like to see in METAL/TAL is to have it always expand macros when an FTP get is performed. I'm using HTML-KIT now to do almost all of my Zope work, and it's wonderful (too bad its only FTP based, not WebDav). Anyway, if the macros where always expanded I'd be thrilled. Just a wish for the next release Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

1 0

RE: [Zope-dev] RE: [Zope] xmlrpc slowness
by Jon Edwards 18 May '01

18 May '01

1 0

'None' object has no attribute 'load'
by Chris Withers 18 May '01

18 May '01

Hi, Another data point on these errors. ------ 2001-05-18T11:01:44 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\00 0(\347\026' Traceback (innermost last): File E:\Zope\2379B4~1.2\lib\python\ZODB\Connection.py, line 508, in setstate AttributeError: 'None' object has no attribute 'load' I get the quite often when playing with Squishdot. I don't remember getting them ages ago, but I have no idea what could be causing it. How would I go about finding the id/path of the objects the ZODB couldn't load state for? I suspect this may not have a nice answer... cheers, Chris

2 6

Asyncore in an external method
by Matt Hamilton 18 May '01

18 May '01

Dear All, I have just written a parallel whois lookup as an external method. It uses Asyncore to handle the parallelism. It works fine from the command line, but I am now trying to use it within Zope with not much luck the request just hangs the server. I have just wondered, can this actually be done? I know Medusa uses asyncore -- can a method within Zope also use it? -Matt -- Matt Hamilton matth(a)netsight.co.uk Netsight Internet Solutions, Ltd. Business Vision on the Internet http://www.netsight.co.uk +44 (0)117 9090901 Web Hosting | Web Design | Domain Names | Co-location | DB Integration

1 0

DB(Oracle) Transactions with Zope(/ZPatterns)
by Andreas Repp 17 May '01

17 May '01

Hi *, i'm currently developing a (network information) DB web-interface using ZPatterns specialists with one specialist for every logical object. For instance i have a 'component'-specialist which handles a object<->table mapping for the tables: o component - product (n:1 foreign key) - location (n:1 foreign key) - physical port (1:n foreign key) - ... The user (provided that she/he has permission) should be able to create a new component as well as related physical ports, new product etc. 'create component' Sequence: ---------------------------- (1) call component-specialist newItem -> skin script 'WHEN OBJECT ADDED' calls SQL insert statement with default attribute parameters from ZClass ### + SQL commit (Zope/DC Oracle default behavior)! ### (2) redirect user to .../component/#newid/edit (3) user adds new physical port -> skin script 'WHEN OBJECT ADDED' calls SQL insert statement with component #newid as foreign key + default stuff from ZClass again an SQL commit-statement is appended ... (x) user clicks 'cancel'-button -> MY PROBLEM (trash in DB because of no(?) possibility to make a SQL rollback) Questions: ---------- 1. Is it possible to make sure a user stays with a specific DC Oracle thread ? (trick timeouts via http-refresh ?) 2. Provided that a user can have her/his private DB thread (kind of a private xterm with PL/SQL ;-) is it possible to wrap a bunch of SQL statements (triggered by ZPatterns) into a (Oracle) DB Transaction ? Any comments (maybe answers ;-) would be _very_ appreciated. thank u in advance Andy ---------------------------------------------------------------------- Andreas Repp andreas.repp(a)lrz-muenchen.de Leibniz Rechenzentrum Muenchen www.lrz.de Barer Str. 21 office +49 8441 4980772 D-80333 Muenchen mobile +49 172 8337010 ----------------------------------------------------------------------

1 0

ZCatalog, REQUEST, misc.
by Erik Enge 17 May '01

17 May '01

Hi. I was adding a couple of objects to my system. Turns out, it's over a million of them. I have a 1GHz Pentium with 1GB RAM and 1GB swap. After I added all the objects with a little script (that took about 12 hours), I was going to index them to the Catalog I have. (I had to uncomment the index_object method's innards in CatalogAwareness.py because of a problem I mention further down.) After using up all my RAM and swap, taking five hours and making nothing happen, I gave up trying to index the objects. (This was _with_ subtransactions enabled; set to "10000".) This is Zope 2.3.1b1, by the way. I'm changing to Zope 2.3.2b2 as we speak, but I don't think it will improve performance that much. So, to the origin of one of the problems. This is part of my script to add all these objects: """ from AccessControl.SecurityManagement import newSecurityManager from ZPublisher.Request import Request from ZPublisher.Response import Response import sys import Zope import os os.environ['SERVER_NAME'] = 'localhost' os.environ['SERVER_PORT'] = '80' response=Response() REQUEST = Request(sys.stdin, os.environ, response) applic=Zope.app() #applic.REQUEST = REQUEST uf=applic.acl_users user=uf.getUser('sysadm').__of__(uf) newSecurityManager(None, user) print applic """ Nice, that works. What happends from now on in the script is quite boring; it just adds object. Kinda like: applic['object'].manage_add_something() If I do not uncomment those things in CatalogAwareness.py I get an error on SERVER_URL. I think it is resolve_url() that tries to make a run for it. Clever as I thought I was, I added the "applic.REQUEST = REQUEST" line (which, as you can see, is now commented out) and thought that it would fix my problems. Initially, it looked good. Adding the objects (with the CatalogAwareness.py stuff not commented out) was working. However, when I tried to access any of the newly added objects, Zope died, restarted and pretended like nothing had happend. This is reproducable. What I would really like, is to avoid this after-add-reindex procedure (since I can't make it happen). Is there any way I can produce a "good enough" REQUEST for Zope? So that it doesn't do that die-repeat cycle on me? Any hints greatly appretiated! :-) (I haven't got much confidence that the Catalog will be able to respond to any queries with over a million objects indexed, but time will show I guess. I tried a 2.3.1b1 Catalog with 250.000 odd objects, and it wasn't very talkative.)

3 20

Hotfixes and __bases__
by Dyon Balding 17 May '01

17 May '01

In Caseman's How-To named "Extend Zope Dynamically with Hotfixes", at http://www.zope.org/Members/Caseman/Dynamic_Hotfix, he mentions that you could: "Add new base classes to existing classes". I have tried this, and can't get it to work, my question is: is it possible?, and if so, how do I make it work? :) I am using Python 1.5.2, which supports dynamically updating the __bases__ attribute. I can successfully update the bases in simple Python classes, but when I try to do it to a Zope (2.3.2) class (specifically Folder), my assignment to the __bases__ attribute doesn't update it. Is what I'm doing even possible? thanks -d

1 0

Re: [zope-dev] Xron, suse 6.4
by Homan Els 17 May '01

17 May '01

Hi, Could you please send your external python method. + Product for using in combination with a cron job. Because, this can really help me a lot. Thanks, Els Nicholas Lo wrote: > Sorry man, I still have the same problem :( However, instead I use Xron, I > write a simple product which is able to call up another python process to > the cron job. Though this is not a perfect solution, it solve many of my > problems. My simple 'external' python program does not sit inside the Zope > framework, so it cannot benefit from Zope's many good features :( > > -- nick > > ----- Original Message ----- > From: "Homan Els" <homan(a)embl-grenoble.fr> > To: "Nicholas Lo" <nicklo(a)siliconcreation.com> > Cc: <lstaffor(a)dynalogic.com>; <zope-dev(a)zope.org> > Sent: Wednesday, May 16, 2001 10:55 PM > Subject: [zope-dev] Xron, suse 6.4 > > > Hi Nick, > > > > I am having the same problem with installing Xron on my suse 6.4 > > machine. > > My question is, are you now running Xron with succes ? And how did you > > do this ...? > > > > Because, I would like to run this product as well. > > > > Thanks, > > > > Els > > ********************************************************************* > > ----- Original Message ----- > > From: "Nicholas Lo" <nicklo(a)siliconcreation.com> > > To: <lstaffor(a)dynalogic.com> > > Sent: August 18, 2000 12:41 AM > > Subject: xcron test > > > > > > > Hi Loren, > > > > > > I have a problem with installing Xron 0.9 onto my machine. Currently, > > > I'm running SuSE Linux 6.4 on a 600MHz/128Mb/20Gb PC. I have followed > > > the release note and set the STUPID_LOG_FILE environment variable to > > > point the log file, and Xron itself is, of course, resides in the > > > /Products directory. When I start Zope, the console looks okay. > > However, > > > the browser keeps on loading and loading and could not show the Zope > > > management screen. I have also tried Xron on my notebook, which is > > > running Win98. Everything works just fine. I just wonder what's gone > > > wrong. > > > > > > Thanks. > > > > > > Nick > > > > > ********************************************************************** > > > > -- > > _______________________________________________________________________ > > Els Homan > > European Molecular Biology Laboratory (EMBL) > > 6, rue Jules Horowitz, B.P.181 > > 38042 Grenoble cedex 9. France > > homan(a)embl-grenoble.fr (Email) > > 04 76 20 74 66 (Phone) > > 04 76 20 71 99 (Fax) > > ______________________________________________________________________ > > --

1 0

Re: [Zope-dev] Professional Sites Using Zope??
by Fred Wilson Horch 17 May '01

17 May '01

On 16 May 2001, at 12:15, Jawad wrote: > I am also interested to know Is there any professionally developed sites in > Zope/Python. Please let me know the URL. Our non-profit's web site is developed in Zope/Python, using a combination of volunteers and paid contractors. The URL is http://ecoaccess.org/. Regards, Fred -- Fred Wilson Horch mailto:fhorch@ecoaccess.org Executive Director, EcoAccess http://ecoaccess.org/ P.O. Box 2823, Durham, NC 27715-2823 phone: 919.419-8567

1 0

disable view on method for ZClass
by Tim McLaughlin 17 May '01

17 May '01

OK here's a strange request that I think should be changed on ZClasses (bear w/ me): 'View' permission should be disablable on a method of a ZClass. Right now, it forces 'View' to be mapped to 'View' if one tries to disable it. The reason is the event model that I am making available for ZClasses. One such event is the "onPropertyChange" which passes (self, propertysheet_id, changes, REQUEST) to the ZClass method. This is all well and good except that the same method can be called TTW, and thus forged. Worse yet, the changes param could be forged so that the method has false params. Disabling the method for TTW calling cleans everything up nicely. Anybody have any thoughts? Also, does anybody have any idea where it is currently getting the default set... I can't seem to find it. Thanks, Tim ___________________________________________________________ Tim McLaughlin BCSwebservices.net Director, Technical Group 1950 Old Gallows Road tel: (703) 790.8081 x111 Suite 201 tim(a)bcswebservices.net Vienna, VA 22182 www .bcswebservices. net

1 0