May 2010 - Zope - Zope lists

Zope Catalog sorting
by Giampiero Benvenuti 29 May '10

29 May '10

Hello, I have a simple/silly question: how can you sort the Catalog results with 2 parameters? Es: sort_on='last_name', sort_on='first_name'... in the old days was simple: sort='last_name, first_name' Thank You, Giampiero

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Test mail, please ignore
by Jens Vagelpohl 28 May '10

28 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Quick test, please ignore -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAkv/WJkACgkQRAx5nvEhZLJ4oACgm3AmtfWAwvrhVvB83AxcbHfJ EdkAoLTWC5DeBS3xsls8FTCPU5UEZIgu =q806 -----END PGP SIGNATURE-----

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REMINDER: Planned server and list outage LATER TODAY
by Jens Vagelpohl 27 May '10

27 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Reminder: Today at 20:00 UTC (less than 12 hours from now) one of the Zope Foundation-maintained servers will be physically moved to a different data center by our hosting provider. The server will be shut down at around 20:00 UTC and, according to the hosting provider, become available again no later than 05:30 UTC tomorrow (Friday, May 28). This outage will affect several websites as well as the mailing list service. No mail sent to the lists will be lost, though, it will just be queued up on our secondary mail relay, which is unaffected by this move. Once the main server comes back up it will be delivered. Services affected ================= - the docs.zope.org website - the download.zope.org website - all zope.org mailing lists and the lists.zope.org website Server shutdown =============== Thursday, May 27 (TODAY) 20:00 UTC - 22:00 CEST/Berlin - 16:00 EDT/New York - May 28 06:00 EST/Sydney Server start ============ On or before Friday, May 28 (TOMORROW) 05:30 UTC - 07:30 CEST/Berlin - 01:30 EDT/New York - 15:30 EST/Sydney jens -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAkv+LTYACgkQRAx5nvEhZLIg4gCeKpPV3ZZVinNhDA8F9Rj1KV0Q nkMAnj1r+faNJnWhEKIrYqhZYUITipJx =EDSt -----END PGP SIGNATURE-----

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z3c.authenticator conflicts with zope.app.security
by Dr. Volker Jaenisch 25 May '10

25 May '10

Hi Zope People! I got this conflict (see below) error utilizing z3c.authenticator in bluebream. Learned from http://www.mail-archive.com/zope3-users@zope.org/msg08290.html that """ > Both registrations won't work at the same time. > You need to get rid of one based on what sort of authentication you're > using. """ This is out of question. The question is how to do this. There is no direct dependecy on zope.app.security in my zcml code. Any help apreciated, thanks in advance Volker zope.configuration.config.ConfigurationConflictError: Conflicting configuration actions For: ('view', None, u'logout.html', <InterfaceClass zope.publisher.interfaces.browser.IBrowserRequest>, <InterfaceClass zope.publisher.interfaces.browser.IDefaultBrowserLayer>) File "/home/volker/workspace/vbb/propertyshelf.mls/eggs/zope.app.security-3.7.5-py2.6.egg/zope/app/security/browser/configure.zcml", line 31.2-38.8 <browser:page name="logout.html" for="*" class=".auth.HTTPAuthenticationLogout" attribute="logout" permission="zope.Public" allowed_interface="zope.app.publisher.interfaces.http.ILogout" /> File "/home/volker/workspace/vbb/propertyshelf.mls/eggs/z3c.authenticator-0.8.0-py2.6.egg/z3c/authenticator/browser/login.zcml", line 21.2-26.8 <page name="logout.html" for="*" class=".login.SiteLogout" permission="zope.Public" /> Any help appreciated. Thanks in advance Volker -- ==================================================== inqbus it-consulting +49 ( 341 ) 5643800 Dr. Volker Jaenisch http://www.inqbus.de Herloßsohnstr. 12 0 4 1 5 5 Leipzig N O T - F Ä L L E +49 ( 170 ) 3113748 ====================================================

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NOTICE: Planned server and list outage
by Jens Vagelpohl 25 May '10

25 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Please note: First of all, apologies for the cross-posting. I wanted to reach as many people as possible. On Thursday, May 27 (2 days from now) one of the Zope Foundation-maintained servers will be physically moved to a different data center by our hosting provider. The server will be shut down at around 20:00 UTC and, according to the hosting provider, become available again no later than 05:30 UTC the next day (Friday, May 28). This outage will affect several websites as well as the mailing list service. No mail sent to the lists will be lost, though, it will just be queued up on our secondary mail relay, which is unaffected by this move. Once the main server comes back up it will be delivered. Services affected ================= - the docs.zope.org website - the download.zope.org website - all zope.org mailing lists and the lists.zope.org website Server shutdown =============== Thursday, May 27 20:00 UTC - 22:00 CEST/Berlin - 16:00 EDT/New York - May 28 06:00 EST/Sydney Server start ============ On or before Friday, May 28 05:30 UTC - 07:30 CEST/Berlin - 01:30 EDT/New York - 15:30 EST/Sydney I will send a reminder a few hours before the move. jens -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAkv7m9AACgkQRAx5nvEhZLKc6ACdGs5yEK91p/4zqC962mRK1uAE 1ZUAoLX+sS1EoCvvd4lztmpxGwmla8RO =g4v9 -----END PGP SIGNATURE-----

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long running methods
by Jürgen Herrmann 23 May '10

23 May '10

hi there! as our zope2 zodb grows we experience more and more conflicts with long running transactions. so i'm going to rewrite these methods to commit transactions in batches - here my attempt to tackle this problem. the idea is to get a list of objects to be modified in this transaction, break it down to batches and commit after each batch was processed. to avoid zope's retry-on-conflict machinery and still have a chance to retry per batch transaction commits, the iteration over one batch is guarded by a try:except ConflictError: and a retry logic. i wrote some more or less pseudo code to make this clear. def myLongRunningMethod(self): BATCH_SIZE = 10 MAX_CONFLICTS = 3 work_items = [some, work, to , do, ...] # list of persistent objects to be modified in this method idx = 0 while idx < len(work_items): conflicts = 0 try: my_batch = work_items[idx, idx+BATCH_SIZE] for work_item in my_batch: do_some_work(work_item) transaction.commit() except ConflicError: conflicts += 1 if conflicts > MAX_CONFLICTS: raise else: idx += BATCH_SIZE does this sound like a reasonable approach? jürgen -- >> XLhost.de - eXperts in Linux hosting ® << XLhost.de GmbH Jürgen Herrmann, Geschäftsführer Boelckestrasse 21, 93051 Regensburg, Germany Geschäftsführer: Volker Geith, Jürgen Herrmann Registriert unter: HRB9918 Umsatzsteuer-Identifikationsnummer: DE245931218 Fon: +49 (0)800 XLHOSTDE [0800 95467833] Fax: +49 (0)800 95467830 WEB: http://www.XLhost.de IRC: #XLhost(a)irc.quakenet.org

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javascript experts?
by Garry Saddington 22 May '10

22 May '10

I am using some dynamic javascript to build form input controls and I have got everything working perfectly in all browsers except IE. The javascript uses square bracket notation to allow the phones.number:records to build multiple database input records for Zope. if (eval("document.forms.playlist['phones.number:records'][" + idx + "].value") > 0) However,IE interprets it as: "document.forms.playlist.phones.number:records" and of course therefore does not find the element referenced. Can anyone suggest a workaround for IE in this respect. Thanks Garry

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PAU + loginpagename = FAIL
by Dr. Volker Jaenisch 20 May '10

20 May '10

Hi zope list! Tried to use the PAU feature of the challenge mechanism of the sessionbasedcredential plugin in bluebream. The main registration of PAU : @adapter(INewMLSApplicationEvent) def createPAU( event ): sm = event.object.getSiteManager() pau = PluggableAuthentication() sm['authentication'] = pau sm.registerUtility(pau, IAuthentication) users = PrincipalFolder() sm['authentication']['Users'] = users sm.registerUtility(users, IAuthenticatorPlugin, name="Users") pau.credentialsPlugins = ( "No Challenge if Authenticated", "Session Credentials" ) # introduce my own login page for name, plugin in pau.getCredentialsPlugins(): #iterate over all credential plugin tupels if hasattr(plugin,'loginpagename'): plugin.loginpagename = '@@login' This code should bring the functionality that an unauthorized user will jump to the login page (@@login). I addressed without a former login the following URL http://127.0.0.1:8080/test11/@@test where test11 is my custom site-manager-instance and @@test a empty test-view just containing a pdb in __call__. class testPage(BrowserPagelet): """test pagelet""" def __call__(self): import pdb; pdb.set_trace() def update(self): import pdb; pdb.set_trace() I end up with URL: http://127.0.0.1:8080/test11/%40%40test Module paste.evalexception.middleware:*306* in |respond| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> *try**:* __traceback_supplement__ *=* errormiddleware*.*Supplement*,* self*,* environ app_iter *=* self*.*application*(*environ*,* detect_start_response*)* *try**:* return_iter *=* list*(*app_iter*)*||>> <http://127.0.0.1:8080/test11/@@test#>app_iter *=* self*.*application*(*environ*,* detect_start_response*)*| Module paste.translogger:*68* in |__call__| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> self.write_log(environ, method, req_uri, start, status, bytes) return start_response(status, headers) return self.application(environ, replacement_start_response) def write_log(self, environ, method, req_uri, start, status, bytes):||>> <http://127.0.0.1:8080/test11/@@test#>*return* self*.*application*(*environ*,* replacement_start_response*)*| Module zope.app.wsgi:*59* in |__call__| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> handle_errors *=* environ*.*get*(*'wsgi.handleErrors'*,* self*.*handleErrors*)* request *=* publish*(*request*,* handle_errors*=*handle_errors*)* response *=* request*.*response # Get logging info from principal for log use||>> <http://127.0.0.1:8080/test11/@@test#>request *=* publish*(*request*,* handle_errors*=*handle_errors*)*| Module zope.publisher.publish:*131* in |publish| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> obj *=* publication*.*getApplication*(*request*)* obj *=* request*.*traverse*(*obj*)* publication*.*afterTraversal*(*request*,* obj*)*||>> <http://127.0.0.1:8080/test11/@@test#>obj *=* request*.*traverse*(*obj*)*| Module zope.publisher.browser:*556* in |traverse| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> nsteps *=* *0* ob*,* add_steps *=* publication*.*getDefaultTraversal*(*self*,* ob*)* *while* add_steps*:* nsteps *+=* len*(*add_steps*)*||>> <http://127.0.0.1:8080/test11/@@test#>ob*,* add_steps *=* publication*.*getDefaultTraversal*(*self*,* ob*)*| Module zope.app.publication.browser:*36* in |getDefaultTraversal| <http://127.0.0.1:8080/test11/@@test#> |<< <http://127.0.0.1:8080/test11/@@test#> *if* IBrowserPublisher*.*providedBy*(*ob*)**:* # ob is already proxied, so the result of calling a method will be *return* ob*.*browserDefault*(*request*)* *else**:* adapter *=* queryMultiAdapter*(**(*ob*,* request*)**,* IBrowserPublisher*)*||>> <http://127.0.0.1:8080/test11/@@test#>*return* ob*.*browserDefault*(*request*)*| *Unauthorized: (<z3c.pagelet.zcml.testPage object at 0x9e4838c>, 'browserDefault', 'zope.ManageContent') *This trace is correct in so far that the view has the following permission settings:  <z3c:pagelet for="*" name="test" class=".test.testPage" permission="zope.ManageContent" layer="propertyshelf.mls.skin.interfaces.IDefaultLayer" /> * * 1) The plugin "Session Credentials" is registered and works. I know this because the "extractCredentials"-Routine of the plugin is called and it is my instance of this plugin because it has its loginpagename set to "@@login" which is not the default value. 2) But the "challenge"-routine of the plugin which should bring up the login page is never called. 3) I traced that back into PAU itself. The "unauthorized"-routine in zope.pluggableauth-1.0.1-py2.6.egg/zope/pluggableauth/authentication.py which will in turn call the plugins challenge-routine is also not called. 4) But the routine "unauthenticatedPrincipal" is called which is not implemented. 5) I had the slight suspicion that this has something to do with the exception/event-handling. So I tried to run the bluebream instance not in debug-mode (which catches some ecxeptions) but in deploy-mode utilizing ./bin/paster serve deploy.ini But this ends in the following stacktrace 2010-05-20T00:08:57 ERROR SiteError Error while reporting an error to the Error Reporting utility Traceback (most recent call last): File "/home/volker/workspace/vbb/propertyshelf.mls/eggs/zope.app.publication-3.10.2-py2.6.egg/zope/app/publication/zopepublication.py", line 263, in _logErrorWithErrorReportingUtility errUtility = zope.component.getUtility(IErrorReportingUtility) File "/home/volker/workspace/vbb/propertyshelf.mls/eggs/zope.component-3.9.3-py2.6.egg/zope/component/_api.py", line 171, in getUtility raise ComponentLookupError(interface, name) ComponentLookupError: (<InterfaceClass zope.error.interfaces.IErrorReportingUtility>, '') <zope.publisher.interfaces.EndRequestEvent object at 0x94185ac> Any help or idea appreciated Volker -- ==================================================== inqbus it-consulting +49 ( 341 ) 5643800 Dr. Volker Jaenisch http://www.inqbus.de Herloßsohnstr. 12 0 4 1 5 5 Leipzig N O T - F Ä L L E +49 ( 170 ) 3113748 ====================================================

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Problem with non-latin character sets in Page Templates
by Christopher N. Deckard 17 May '10

17 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, Due to ICANN's decision to allow for non-Latin characters in domain names, I thought I'd give our Zope installation a test to see how it would handle it. We've had problems with people copy and pasting from MS Word, and its use of strange characters. I'm sure at some point the faculty here at Purdue will have a need to link to web sites using non-Latin characters. This is my example HTML: <html> <head> <title>URL Test</title> </head> <body> <a href="http://موقع.وزارة-الأتصالات.مصر">http://موقع.وزارة-الأتصالات.مصر</a>. </body> </html> Not only is it a different character set, but it is a right to left character set. This code works fine while editing a Page Template. However, when viewing it, all of those characters in the href are converted to question marks. If the same HTML is pasted into a DTML Method or a File object, Zope will convert the characters to ASCII characters. When viewed it will be viewed correctly. Any reason that Page Templates may fail to render this properly? - -Chris - -- - -------------------------------------------------------------------- Christopher N. Deckard | Lead Web Systems Developer cnd(a)ecn.purdue.edu | Engineering Computer Network http://eng.purdue.edu/ECN/ | Purdue University - ---- zlib.decompress('x\234K\316Kq((-J)M\325KM)\005\000)"\005w') --- -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.12 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvxoQcACgkQ+zGkEDwn8UZcGACgufURwanURBIBcZUSLYYRkEvV vKwAoNnGMlmOhE/GciZuTO3ldptuBr4Z =mypE -----END PGP SIGNATURE-----

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Is shared ZEO cache possible?
by Roopesh P Raj 17 May '10

17 May '10

Hi, In the zope application that I am working on, there are nearly 40 ZEO clients. Restarting 40 ZEO clients is a time consuming process which takes hours - especially the creation of .zec files in each of the ZEO clients takes a lot of time. My doubt is whether it is possible to use one .zec file shared among all the ZEO clients? Thanks, Roopesh

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