June 2007 - Zope - Zope lists

Five: Adapter registry not working?
by Peter Sabaini 04 Jun '07

04 Jun '07

Hi list, I am clearly doing something wrong here. I try to use an Adapter from zope.app.session with an HTTPRequest object, but the Adapterregistry doesnt quite cooperate. Specifically, I try to adapt a HTTPRequest object to zope.app.session.interfaces.IClientId via the Adapter zope.app.session.session.ClientId A short demo: % ./zopectl debug [ ... ] Import stuff: >>> from ZPublisher.HTTPRequest import * >>> from StringIO import StringIO >>> from zope.app.session.session import ClientId >>> from zope.app.session.interfaces import IClientId >>> from zope import component >>> from zope.interface import * Create ourselves a faux request object: >>> env = {'SERVER_NAME': '', 'SERVER_PORT' : ''} >>> request = HTTPRequest(StringIO(), env, None) ClientId implements IClientId: >>> list(implementedBy(ClientId)) [<InterfaceClass zope.app.session.interfaces.IClientId>] It seems ClientId is an Adapter for IRequest: >>> component.adaptedBy(ClientId) (<InterfaceClass zope.publisher.interfaces.IRequest>,) request implements IBrowserRequest, which is a subclass of IRequest: >>> list(providedBy(request)) [<InterfaceClass zope.publisher.interfaces.browser.IBrowserRequest>] >>> issubclass(list(providedBy(request))[0], component.adaptedBy(ClientId) [0]) True ...so I'd expect to get ClientId as an Adapter for IClientId(request), but I dont: >>> IClientId(request) Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: ('Could not adapt', <HTTPRequest, URL=http://:>, <InterfaceClass zope.app.session.interfaces.IClientId>) Shouldnt this work? Obviously I am missing something here. This is on Zope 2.10.2 with the built-in Five, and Python 2.4.4 Any help greatly appreciated! - peter.

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Function sequence.sort
by julian 04 Jun '07

04 Jun '07

Hi, I have a problem with a script that run with zope2.7. This same script don't run with zope 2.9 ???? My error : ---------------------------------------------------------------------- 2007-06-04T15:31:05 ERROR Zope.SiteErrorLog http://zope.mysite.com:17673/SITES/plone_site/vie-quotidienne/ind ex_html/ecoles Traceback (innermost last): Module ZPublisher.Publish, line 115, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 41, in call_object Module Shared.DC.Scripts.Bindings, line 311, in __call__ Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec Module Products.PythonScripts.PythonScript, line 325, in _exec Module None, line 13, in ecoles - <PythonScript at /SITES/plone_site/vie-quotidienne/index_html/ecoles> - Line 13 Module DocumentTemplate.sequence.SortEx, line 121, in sort TypeError: mybrains.__cmp__(x,y) requires y to be a 'mybrains', not a 'ImplicitAcquirerWrapper' --------------------------------------------------------------------------------- ----------------------------------------------------------------------------------- The script: ------------------------------------------------------------------------------------ from Products.PythonScripts.standard import html_quote request = container.REQUEST RESPONSE = request.RESPONSE query = {'portal_type' : 'J_Product', 'review_state' : 'published', } resultat_ecole = context.portal_catalog.searchResults(query) sort_on_pr = () tri_ecole =sequence.sort(resultat_ecole, sort_on_pr) return tri_ecole ------------------------------------------------------------------------------------- Julian

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MemoryError exception when importing a zexp file
by Ben Lobo 04 Jun '07

04 Jun '07

Hi, I'm trying to import a .zexp file that's 1.6GB but it continually fails due to a MemoryError exception. I guess that adding more RAM would probably fix this problem but does anyone know if there's any way of getting around this sort of problem without increasing the RAM? This is the traceback: -- Site Error An error was encountered while publishing this resource. exceptions.MemoryError Sorry, a site error occurred. Traceback (innermost last): a.. Module ZPublisher.Publish, line 163, in publish_module_standard b.. Module Products.PlacelessTranslationService.PatchStringIO, line 51, in new_publish c.. Module ZPublisher.Publish, line 108, in publish d.. Module Zope.App.startup, line 226, in abort e.. Module ZODB.Transaction, line 149, in abort f.. Module ZODB.Connection, line 474, in abort_sub MemoryError -- Thanks Ben -- Ben Lobo Application Developer Adaptive Technologies Ltd. +44 (0)1273 728128 http://www.adaptivetechnologies.com

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Re: process_memory reports negative usage
by Gaute Amundsen 04 Jun '07

04 Jun '07

On Friday 01 June 2007 15:48, Izak Burger wrote: > On 6/1/07, Gaute Amundsen wrote: > > I'm using the process_memory plugin for monitoring zope, just as in the > > readme. > > Your the first person to ever contact me about it, so I am very happy > to hear that it was useful to someone else as well :-) It has been extremely useful actually, in discovering that the stability problems we had was caused by a to small a zodb cache, and in finding a new appropriate value for it. That, and the zope cache parameters and Database Activity plugins that I just published :) http://muninexchange.projects.linpro.no/?search&cid=14&pid=108 I am taking the liberty of CCing the zope, and munin lists on this, so perhaps others wil become aware of that usefullness as well :) And thanks for the uppdated version :) Regards Gaute Amundsen

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Re: [Zope-DB] blobs and dtml-sqlvar
by Jonathan 02 Jun '07

02 Jun '07

----- Original Message ----- From: "e deleflie" <edeleflie(a)gmail.com> To: <zope-db(a)zope.org> Sent: Friday, June 01, 2007 7:58 PM Subject: [Zope-DB] blobs and dtml-sqlvar > I'm using MySQLDBA, and I've got a Z SQL Method like this: > > select * from myTable where someValue=<dtml-sqlvar myValue type=string> > > The issue being that 'myValue' is actually a Hex value in a Blob > column. The only types possible for dtml-sqlvar seem to be string and > int (as far as I can tell). > > I noticed that when I use 'type=string' the value is always placed in > inverted commas (and so MySQL thinks it is a string and rejects > it).... and when I put 'type=int' the Hex value is rejected by Zope. > > Is it possible that MySQLDBA can not handle blobs / Hex values at all? > I'm confused that dtml-sqlvar only sees 2 types of data. I use ZMySQLDA quite a bit, but I have never used a blob column. According to the documentation the available types are: string, int, float and nb. I had a quick look through the ZMySQLDA source code and saw blob types being defined, but didn't see (during my quick look) how they were being used. So... try the 'nb' type and if that does not work, have a look at the source code and see how the blob types are being used. Not a whole lot of help, but maybe point you in a direction... Good Luck! Jonathan

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Zope 2.7 - sporadic service hangup
by Marcel Hartmann 01 Jun '07

01 Jun '07

Hi, we notice two or three times a day some kind of hangup of the zope service. After hangup there is no response requesting urls/manage interface cannot be accessed, too. Restarting the zope service resolves all problems until the next hangup. No errors in zope logs! Seems to work everything fine ... We use Zope 2.7.5-final, python 2.3.5 on Debian, to access LDAP LDAPUserFolder, ZOracleDA for Oracle Connection. I know about problems with ZOracleDA - but not resulting in hangups. What could be the reason? What can I do? Marcel

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review_state
by julian 01 Jun '07

01 Jun '07

Hi, I search a function that return the review_state of an object in Zope. A function like : object.get('review_state') row[0] = object.getId() title = object.Title() row[1] = title row[2] = object.getPhysicalPath() #row[3] = object.get('review_state') Thanks Julian

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