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remote authentication
by Garry Saddington 01 Sep '08

01 Sep '08

Is there a way to have two separate zope instances on different machines and have them both authenticate against one acl_users folder on only one of these machines? regards garry

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Styles of import in Zope (2 and 3)
by Marco Bizzarri 31 Aug '08

31 Aug '08

Please, feel free to point me to The Fine Manual to read, if this has been answered and written many times. After reading the article "Importing Python Modules" (http://effbot.org/zone/import-confusion.htm) I had many doubts about the style to use in imports in Zope 2 and Zope 3. The article points to a style which should be: from package.subpackage import module and then use module.MyClass Is this the recomended style in Zope2/3 also? Regards Marco -- Marco Bizzarri http://iliveinpisa.blogspot.com/

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Re: [Zope] Styles of import in Zope (2 and 3)
by Marco Bizzarri 30 Aug '08

30 Aug '08

>> >> Is this the recomended style in Zope2/3 also? > > PEP8 tells you: > > <http://www.python.org/dev/peps/pep-0008/> > > -aj Yes, I've read it; but PEP8 seems not to prescribe any particular style over the other. Is there any other place where the topic is addressed? Regards Marco -- Marco Bizzarri http://iliveinpisa.blogspot.com/ http://notenotturne.blogspot.com/

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Re: [Zope] SALE 89% OFF
by VIAGRA INC 28 Aug '08

28 Aug '08

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Writing a testcase for a Plone 2.5 product - ztc.installPackage isn't available
by Israel Saeta Pérez 28 Aug '08

28 Aug '08

I've posted this message to the plone-users list, but since nobody has answered and I think it's really related to Zope, I'm reposting the message here. My apologies if you receive this message twice. Hello list, I'm trying to write some automated test for an *eggified* content-type product I'm developing for Plone 2.5. My question is: Is possible to install eggified products in zope-2.9.8 using ZopeTestCase? And now the context: Following the PPD book, I've put the following into the tests/base.py file: *** # base.py from zassh.eventoDeportivo.config import PROJECTNAME from Testing import ZopeTestCase from Products.Five import zcml, fiveconfigure from Products.PloneTestCase.layer import onsetup @onsetup def setup_eventoDeportivo(): fiveconfigure.debug_mode = True import zassh.eventoDeportivo zcml.load_config('configure.zcml', zassh.eventoDeportivo) fiveconfigure.debug_mode = False # Let Zope know about the product we require above-and-beyond a basic # Plone install (PloneTestCase takes care of these). ZopeTestCase.installProduct(PROJECTNAME) # PROJECTNAME = "zassh.eventoDeportivo" # Import PloneTestCase - this registers more products with Zope as a side effect from Products.PloneTestCase.PloneTestCase import PloneTestCase from Products.PloneTestCase.PloneTestCase import setupPloneSite # Set up a Plone site setup_eventoDeportivo() setupPloneSite(products=[PROJECTNAME,]) class eventoDeportivoTestCase(PloneTestCase): """Base class for integration tests for the 'eventoDerpotivo' product. This may provide specific set-up and tear-down operations, or provide convenience methods. """ *** But when running the tests from a buildout, ZopeTestCase can't install the zassh.eventoDeportivo product: dukebody@schrodinger trunk $ bin/instance test -s zassh.eventoDeportivo Running tests at level 1 Installing CMFCore ... done (0.013s) [...] Installing kupu ... done (0.031s) Running Products.PloneTestCase.layer.PloneSite tests: Set up Products.PloneTestCase.layer.ZCML in 1.958 seconds. Installing zassh.eventoDeportivo ... NOT FOUND and obviously all my tests fail. PPD uses ztc.installPackage instead of ztc.installProduct, but the installPackage method isn't availabe in Zope-2.9.8-final, which I'm using with Plone-2.5.3. [1] My question was: Is possible to install eggified products in zope-2.9.8 using ZopeTestCase? If so, what's wrong in my base.py file? Thanks in advance. [1] http://www.archivum.info/zope-checkins@zope.org/2007-06/msg00100.html -- Israel Saeta Pérez http://dukebody.com

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iterating over result sets in python
by Garry Saddington 24 Aug '08

24 Aug '08

I am trying to iterate over a result set from a zsql method in a python script in Zope 2. In the results is a date field. What I want to do is test whether a date is younger than the date in the previous row by at least 30 days but I am having problems working out how, not coming from a pythonic background. Could anyone point me in the correct direction? Regards garry

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Re: [Zope] Need some help to get rid of an InvalidObjectReference exception
by chaouche yacine 23 Aug '08

23 Aug '08

--- On Wed, 8/20/08, chaouche yacine <yacinechaouche(a)yahoo.com> wrote: > So the question is now : is there another way to put some > ZODB objects in the session for future use ? because there > is no reason to create the same object twice or thrice in my > product so I want it to stay in the session. > > Thanks. Maybe I should try this : http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/Sessions.stx#3-…

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Need some help to get rid of an InvalidObjectReference exception
by chaouche yacine 23 Aug '08

23 Aug '08

Need some help to get rid of an InvalidObjectReference exception Hi zopers, In my zope product, when I try to put some specific object in the session, I get this : 2008-08-18T14:51:02 ERROR(200) SiteError http://www.afdas.com:8091/noyauafdas/tests/testAdresses Traceback (most recent call last): File "/opt/Zope-2.7/lib/python/ZPublisher/Publish.py", line 107, in publish transactions_manager.commit() File "/opt/Zope-2.7/lib/python/Zope/App/startup.py", line 222, in commit get_transaction().commit() File "/opt/Zope-2.7/lib/python/ZODB/Transaction.py", line 241, in commit ncommitted += self._commit_objects(objects) File "/opt/Zope-2.7/lib/python/ZODB/Transaction.py", line 356, in _commit_objects jar.commit(o, self) File "/opt/Zope-2.7/lib/python/ZODB/Connection.py", line 452, in commit dump(state) InvalidObjectReference: Attempt to store an object from a foreign database connection after hours of googling and debugging (not very easy because traceback does not show the line of your product code that fired the exception), I found the line that is breaking everything. def remonterAdresses(self,p_idEntreprise=0): """ Sans arguments, cette methode retourne les adresses stockees en session. """ # XXX : attention, p_idEntreprise est totalement ignore si entreprise deja en session entreprise = self.REQUEST.SESSION.get('entreprise') print "GestionnaireEntreprises::remonterAdresses..." if not entreprise : entreprise = Entreprise(self,p_idEntreprise) print "mise de entreprise en session.." self.REQUEST.SESSION.set('entreprise',entreprise) print "...mise en session OK" adresses = entreprise.remonterAdresses() print "GestionnaireEntreprises::remonterAdresses OK, adresses = ",adresses return adresses Now, the bug comes form the line self.REQUEST.SESSION.set('entreprise',entreprise) entreprise is an instance of Entreprise. I never put objects of this class in the ZODB because I don't need them to persist, they're just temporary. However, because Entreprises objects need to access to other objects that are in the ZODB, I pass them self as first argument, so that they can use it as a "context" to acquire other objects (for examples, Z SQL Methods). So inside Entreprise code, I can do something like self.context.zsql_method_something... because self.context is a reference to the caller, which lives in the ZODB. The caller is gestionnaireEntrprises. So my question is : what is wrong with that ? Why do I get this InvalidObjectReference ? is it the entreprise object that is in the session ? is it the gestionnaireEntreprises that is stored as an attribute of the entreprise object ? maybe both ? Thank you for any advice. Zope 2.7 python 2.3 plone 2.0.5

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pickle passing over a socket
by David Bear 22 Aug '08

22 Aug '08

It seems to me that it could be usefull to have a zope method for passing python pickles to external processes through a unix domain socket. My thinking was to use this as a means to abstract a data base connection. Yes, I know there are zsql methods, sqlalchemy and other products to do this. But my thought was to have a generilzed method for just passing a pickle to an external process that could do anything with it. Perhaps it could pass a pickle to a queue that would handle the pickle if the site need some high volume handling of data. Then one could have another python process listening on the socket -- ready to receive pickles for zope. Does this sound like something that could be usefull -- or is it reduntant with some other feature that zope may have for sending data to external processes? -- David Bear College of Public Programs at ASU 602-464-0424

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Re: [Zope] Need some help to get rid of an InvalidObjectReference exception
by chaouche yacine 21 Aug '08

21 Aug '08

> Yes this could be dangerous, but in my case these volatile > attributes need not to be in the cache for a very long time, > it's just a matter of 3 or 4 clicks in about half a > dozen of minutes. But yeah, I'll really have to be > careful about that, or to recreate them if they're gone > (hence the setattr and getattr to make sure there's > something in self._v_something and create one if > there's not) Ok, I changed my mind again ^_^. Volatile attributes are shared across multiple sessions, which is not acceptable for my application. So here's what I cam up with : * 1 : Do not store references to a ZODBish object into a non ZODBish object * And 2 : just pass the context as a parameter to all the non-ZODBish methods that need it. I Tried to avoid this in the first place (hence storing it as an attribute), but putting them in the session broke everything. Cheers.

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