November 2008 - Zope

Learning to use a BTreeFolder2
by Mr SZ 26 Nov '08

26 Nov '08

Hi All, I am writing a product to manage the back end operations of users.I need to store lots of user info.My first plan was to use ZSQL but then I read about ZODB and more specifically OOBTrees and BTreeFolder2. My objective is to store user related stuff on ZODB but not litter the ZODB but to instead organize into folders. I read the test code and the BTreeFolder.py to figure out the API. I have a few doubts to clarify: In this method I tried to add two BTFs and an OOBTree: def test3(): f = BTreeFolder2('sufest') f2 = BTreeFolder2('somefolder') f3 = BTreeFolder2('somefolder2') f._setObject(f2.id, f2) f._setObject(f3.id, f3) uniq_id = f.generateId() obT = OOBTree() obT['Auth'] = {'a':1,'b':2} f._setOb(uniq_id, obT) lst = f.objectMap() return f._getOb(uniq_id) Now the functions returns an error: 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 Products.ExternalMethod.ExternalMethod, line 225, in __call__ - __traceback_info__: ((), {}, None) Module /var/lib/zope2.9/instance/sandbox/Products/Test/Extensions/Tst.py, line 40, in test3 Module Products.BTreeFolder2.BTreeFolder2, line 211, in _getOb AttributeError: 'BTrees._OOBTree.OOBTree' object has no attribute '__of__' I beleive this is because OOBTrees don't have a meta_type which the _getOb function tries to access. Enlighten me :) Other methods like objectMap and getBatchObjectListing work fine though. My question is how do we properly a store any item other than zope objects like strings,dicts or OOBTrees in a BTreeFolder2 and how to retrieve them back. Zope seems interesting to work with but at times really confuses me especially acquisition concepts. Regards, SZ " life isn't heavy enough,it flies away and floats far above action" Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=other&p2=au&p3=tagline

2 1

Re: [Zope] [Zope-dev] working with SUF
by Chris Withers 22 Nov '08

22 Nov '08

abhi wrote: > I wanted everything inside my product but I was wrong.External methods > should be fine in that case. You can have external methods inside your product... > Just testing out zodb,I did this exercise keeping ZEO/external ZODB in > mind. Well, I don't really think you're "getting" either ZEO or ZODB then. Forget about both ZEO and needed more than one ZODB and you'll be a lot better off. cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

1 0

kicked off list
by C 21 Nov '08

21 Nov '08

Every so often, my other email address gets kicked off the zope list for some reason. One day I'm receiving messages and the next day I'm not. After this happened 3 times, I joined with a second address (this one) so I could be sure it was a phenomenon with a single email address. Can anyone give me a clue why this might be happening? I only occasionally send email to the group, and I never cross-post. Thanks!

3 2

repairing zodb in 2.10.5
by baiewola 19 Nov '08

19 Nov '08

I'm running zope 2.10.5 on Macintosh OS X Leopard Server and I see that several objects seem to be corrupted, as evidenced by poskey errors and the fact that I can no longer access or delete them. I have found web sites suggesting that I use fsrecover.py, but I cannot find that in my Zope bin. How can I recover these individual objects? Thank you! B

2 1

How to find unused Images
by Rupesh P Raj 17 Nov '08

17 Nov '08

Hi All, I am working on an application built on top of Zope. Being a heavily used system, there are quite a lot of old 'Images' in the ZODB which are not referenced anymore. Can I find the images which are not accessed for a long time programatically? Is there a last accessed time or so associated with every object? Regards Roopesh

3 3

FunctionalTestCase commits transactions
by Peter Bengtsson 17 Nov '08

17 Nov '08

I'm trying to get zope.testbrowser to work in Zope 2.10. After a lot of guesswork (easy_install zope.testbrowser broke my environment, Zope 2.11 isn't setting up session container, used various blogs tips to get adapters right) I got it running and I can now do stuff like browser.open(self.folder.myapp.absolute_url()) in python unit test. However, I have a problem. The app uses ZSQL Methods and when the test finishes the transaction is not rolled back and I'm not interested in manually resetting the test database. Is this so deliberately? Do I really have to manually reset the database? I noticed that FunctionTestCase (lib/python/Testing/ZopeTestCase/ZopeTestCase.py:116) inherits from functional.Functional which inherits from sandbox.SandBoxed which, although I don't understand it, seems to do things differently to the non-functional approach which inherits from base.TestCase. Although I'm not using it, function.Functional adds the nifty function publish() which I'm not using but it's not a transaction.commit() in it. Why?? And what does that decorator actually do? Peter class Functional(sandbox.Sandboxed): ... __implements__ = (interfaces.IFunctional,) @savestate def publish(self, path, basic=None, env=None, extra=None, request_method='GET', stdin=None, handle_errors=True): '''Publishes the object at 'path' returning a response object.''' ... # Commit the sandbox for good measure transaction.commit() ... -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

3 7

ERP5 World Forum in Paris
by Yusei TAHARA 13 Nov '08

13 Nov '08

Hi everyone, We are developing ERP5 which is a open source ERP application powered by Zope, and we are going to organise in Paris, on the 1st of December 2008 the first ERP5 World Forum. We will hold a training for everyone who want to know how to use ERP5 and how to develop with ERP5. ERP5 uses Zope very long time, this training would be interesting for all Zope users. ERP5 World Forum - December 1st 2008 - Paris http://www.erp5.org/ERP5WorldForum To register, just send an email to ewf2008 at erp5.org Best regards, -- Yusei TAHARA <yusei(a)nexedi.com>

2 1

Google apps and SAML 2.0 authenticating using Zope
by Thomas Bennett 13 Nov '08

13 Nov '08

I need a SAML 2.0 solution for authenticating into Google Apps from a SAML 2.0 request from Google Apps. There are Java, PHP, Perl, Drupal, and other solutions but I didn't want to build from scratch if there was already a Zope solution available. I haven't found a Zope product that does SAML authentication and the closest thing I found was the acas product but looks like it is specifically for authenticating into Zope only. If there doesn't already exist a Zope solution, I've found a Python SAML library and plan to use it with Python LDAP in external methods to authenticate against my Fedora Directory Server. That is unless there are better suggestions in reply to this email. Any suggestions would be appreciated. Thanks, Thomas -- ==================================================================== Thomas McMillan Grant Bennett Appalachian State University Operations & Systems Analyst P O Box 32026 University Library Boone, North Carolina 28608 (828) 262 6587 "If a vendor shipped a Windows notebook without the drivers, I'd venture to guess it would be even less useful than your Linux laptop" [without drivers]. - Shawn Powers, Linux Journal November 2008 Library Systems Help Desk: https://www.library.appstate.edu/help/ ====================================================================

1 0

Call PageTemplateFile class instances
by Peter Bengtsson 13 Nov '08

13 Nov '08

This used to work in zope 2.8 but not now in zope 2.10 (actually zope 2.10.7 to be exact) from Products.PageTemplates.PageTemplateFile import PageTemplateFile class MyProduct(Folder): meta_type = "bla" page = PageTemplateFile('zpt/foo.pt', globals()) def render_page(self): html = self.page(self.REQUEST) # ERROR!! The error is ridiculously large so I've truncated it: Error in test test_foo (Products.MoneyVillage2.tests.test_creditconfusion.TestCreditCheck) Traceback (most recent call last): File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Testing/ZopeTestCase/profiler.py", line 98, in __call__ testMethod() File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/Products/MoneyVillage2/tests/test_creditconfusion.py", line 20, in test_foo print cc.advice2(self.app.REQUEST) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Shared/DC/Scripts/Bindings.py", line 313, in __call__ return self._bindAndExec(args, kw, None) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Shared/DC/Scripts/Bindings.py", line 350, in _bindAndExec return self._exec(bound_data, args, kw) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Products/PageTemplates/PageTemplateFile.py", line 129, in _exec return self.pt_render(extra_context=bound_names) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Products/PageTemplates/PageTemplate.py", line 98, in pt_render showtal=showtal) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/pagetemplate/pagetemplate.py", line 117, in pt_render strictinsert=0, sourceAnnotations=sourceAnnotations)() File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tal/talinterpreter.py", line 271, in __call__ self.interpret(self.program) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tal/talinterpreter.py", line 346, in interpret handlers[opcode](self, args) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tal/talinterpreter.py", line 870, in do_useMacro macro = self.engine.evaluateMacro(macroExpr) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tales/tales.py", line 696, in evaluate return expression(self) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tales/expressions.py", line 217, in __call__ return self._eval(econtext) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Products/PageTemplates/Expressions.py", line 153, in _eval ob = self._subexprs[-1](econtext) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/tales/expressions.py", line 124, in _eval ob = self._traverser(ob, element, econtext) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/Products/PageTemplates/Expressions.py", line 83, in boboAwareZopeTraverse request=request) File "/home/peterbe/virtualenvzope/MoneyVillage2/zope2107/lib/python/zope/traversing/adapters.py", line 161, in traversePathElement raise TraversalError('No traversable adapter found', obj) TraversalError: ('No traversable adapter found', {'master': [('version', '1.6'), ('mode', 'html'), ('setPosition', (1, 0)), ('setSourceFile', 'main_template'), ('beginScope', {'define-macro': 'master'}), ('optTag', ('metal:block', None, 'metal', 0, [('startTag', ('metal:block', [('define-macro', 'master', 'metal')]))], [('rawtextCo ...........................MANY MANY MORE LINES.................................. -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com

3 6

Using Zope with IIS (PCGI)
by Stephen Christian 11 Nov '08

11 Nov '08

Hello everyone, Not sure if this should go to Zope_Dev, so I thought I would try the main list to start. I've gone through the mail.zope.org archives and have come across a few people who seem to be getting an error I'm getting. But I haven't managed to fix the problem. I have: Zope Version (unreleased version, python 2.2.1, win32) Python Version 2.2.1 (#34, Apr 9 2002, 19:34:33) [MSC 32 bit (Intel)] System Platform win32 SOFTWARE_HOME f:\zope\lib\python ZOPE_HOME f:\zope INSTANCE_HOME f:\zope CLIENT_HOME f:\zope\var on a Windows Server 2003 box running IIS. This has been running for a while with no problem. However, yesterday the server admins made a change for the default web site properties, home directory, configuration, extension asp from excutable C:\WINNT\System32\inetsrv\asp.dll (which did NOT EXIST) to C:\WINDOWS\System32\inetsrv\asp.dll And added c:\windows\microsoft.net\framework\v2.0.50727 to the System PATH (at the end). Since then it appears the PCGI no longer works and i'm not sure what I need to do to stop the below error: I can connect to the zope system using http://localserver:8080/zope/intranetsite or http://sername.etc.com:8080/zope/intranetsite Therefore, I am assuming Zope is fine and running OK. However, when I try and use pcgi I get an error message stating the page cannot be found for this URL (which is how we use to access things): http://servername.etc.com/zope/zope.pcgi/intranetsite if I try: http://servername.etc.com:8080/zope/zope.pcgi/intranetsite Then I get the message: - - - - - - - - - Site Error An error was encountered while publishing this resource. Resource not found Sorry, the requested resource does not exist. Check the URL and try again. Resource: zope GET - - - - - - - - - I've found reference to this online and talking about preserving the site_path (which I haven't found a setting for in IIS) Unfortunately, when this system was turned over to me... I didn't get much cross training in the PCGI stuff and it's been a while! THe PCGI site that everyone points to doesn't seem to be there, thus I'm not sure what else to try / do. THANKS for any help anyone can give me. Even if it's just something to try and run to see if something is configured correctly. the zope.pcgi file looks fine - all the files exist. ------------------------------------------------------------------------ Canada's Fan S/F Convention http://tcon.ca ------------------------------------------------------------------------ Stephen Christian(schrist(a)vex.net) _ Member of: www.vex.com/~schrist (_'-/-_ _ |_ _ _ DWIN,Polaris 22 Canada's B5 Information Pages: ._)( (-'|_)| )(-'| ). <*> www.cdnb5.ca | President of TCON

1 0