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Re: [Zope] Re: plone "vs." CMF was ... uPortal??
by Paul Browning 01 Oct '02

01 Oct '02

--On 27 September 2002 21:24 -0400 Tim Lynch <lynch(a)gould.mannlib.cornell.edu> wrote: > > > Have folks looked at uPortal (www.ja-sig.org)? Well, the University of Bristol has. We have just decided to run with it as our Portal Framework. We had a short-list of three (all "free" to us) - Zope +/- CMF, Oracle Portal and uPortal. You can read a little more about this decision at: <http://www.bris.ac.uk/is/projects/portal> This also points to a summary of who (in the UK education scene) is using (or considering using) what portal framework: <http://www.bris.ac.uk/is/projects/portal/portalbytes> Why did we not run with Zope +/- CMF? In short it boiled down to "Why would you write uPortal in Zope when it's already been written in Java?" Also, whilst our in-house Java skills are modest, they are not as scarce as our in-house Python skills. And, of course, risk-averse organisations are more comfortable with the J-word than the P-word. We have, however, adopted Zope as our content management framework (though as yet we are not using the CMF). The join between uPortal and Zope will be key. So I would be very pleased to share experiences with any other outfits exploring this route. > > The model uPortal provides is one of Views arranged by Tabs; each View is > composed of one or more Channels. A Channel can be thought of as a > window to a particular web service (not uppercase Web Service, though > certainly that is supported) such as, perhaps, an RSS feed. Tabs are > typically arranged across the top of the browser window: 'Home', > 'Campus', 'MyPortal' ... Clicking on a Tab brings into view a browser > window of the channels that make up that View. > > Users have the option to create their own "MyPortal" view, placing on that > page the channels they choose and arranging them in the order they choose. > > Individual channels can be opened/closed/deattached/minimized. > > I think the uPortal model is appealing, though pieces, such as the > screens for setting MyPortal's organization, are klunky. I know what you're saying. But the Web sometimes forces klunkiness. > > If you attended last February's Python conference, maybe you saw the > canned NATO demo? That was a sort-of uPortal-in-Zope design (with a > really slick javascript-based MyPortal organizer tool that definitely > one-ups uPortal's). anyway I wasn't there but I read about it: <http://www.zopezen.org/Members/zopista/1012948857> This was WISE, right? Web Information Services Environment. Real shame that it is trapped in a vortex called NATO ;-) > > What I'd like to see in the CMF/Plone kit is some uPortal-like > functionality. For example, once I, as regular joe-user, register with a > site, I'd like to be able to arrange my home page as I see fit. Maybe > put the Calendar "channel" on my home page at the top-left in place of > the Merchandise "channel" ... Quite. I don't know much/enough about the CMF but I'm sure this is all do-able. But if uPortal have already invented that wheel .... > > 'course there's no real content management capabilities in uPortal and in > a dozen other ways uPortal comes up short compared to Zope/CMF/Plone ... > but it does demonstrate some cool ideas. Exactly. The most important lesson we have learned is that "portals are fundamentally content-free". Portals aggregate views of information and services that reside elsewhere. If you go with a portal framework like uPortal, you still need a CMS (though the uPortal roadmap now has CMS on it ....). Right now it seems the Java world can't compete with the CMS features of Zope - so that's why were backing both horses. But with things like Cocoon and Jahia maturing I'm not sure how long this situation will prevail. Zope +/- CMF does have a window of opportunity, IMHO, to get a foothold by stealth in the Java-based portal framework space. One (or more) XML skins need to be written that allow Zope apps to be rendered (via XSLT) into the portal framework (uPortal is not unique in using XSLT to render content into channels/portlets). I'd like to acknowledge the role Chris Withers has had in steering me towards this view. Paul -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bristol.ac.uk URL: http://www.bris.ac.uk/

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Where's that deprecation warning coming from?!
by Chris Withers 01 Oct '02

01 Oct '02

Hi, I'm getting that irritating SearchIndex deprecation warning again. I want to know what's causing it so I can go and fix the object. How do I find out which object is causing this warning? cheers, Chris

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Session Invalidate doesn't work
by Vitor Varalonga 01 Oct '02

01 Oct '02

Hi! Within my Zope web site, I've included a logout functionality that is supposed to log the user out of the system, redirecting him to the login page. So far so good, but the script I call to perform the whole logout process besides redirecting to the login page, also ends (or should end) the session. The code I used to "end" the session was the following: container.session_data_manager.getSessionData().invalidate() I even tried the following instead: SESSION.invalidate() SESSION.getBrowserIdManager().flushBrowserIdCookie() And what happens is that although the logout process seems to work fine (the SESSION variables no longer exist), the transient container for the session data, instead of decreasing or at least maintaining the number of items, increases it!!! Any suggestion/solution? kind regards, Vitor Varalonga

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RE: [Zope] Regarding retrieving parameters in DTML.
by Passin, Tom 01 Oct '02

01 Oct '02

[ Paul Naveen Raj Jeyaraj] > I am using Zope 2.5.1. I want to know whether it is possible > to retrieve parameters passed through URL in DTML methods. > For example, let us take this. I want to access test folder > in my root directory of my Zope and want to pass a parameter > to it. I am trying out the following URL for the same. > http://mydomain.com/test?param=1. Is this URL > correct? If so, > how to retrieve the parameter in my DTML method? Expecting an > earlier response. > You probably want a page to receive the parameter, not a folder the way you have shown. If there is a dtml document called "page1" in your "test" directory, then an HTTP request to the page might be http://mydomain.com/test/page1?param=1 In the dtml document "page", you would access the parameter as REQUEST['param'] For example, <dtml-var "REQUEST['param']"> There are variations that also work. For example: <dtml-var "param"> <dtml-var "REQUEST.param"> <dtml-var "REQUEST.form['param']">

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ZOPE: Co-operation with UNESCO
by V�s�rhelyi P�l 01 Oct '02

01 Oct '02

Dear Collegue, UNESCO (the United Nations Educational, Scientific and Cultural Organization) wishes to promote the use of open-source and freware products/free services in the field of education in developing countries, presenting their main characteristics on its web-site in a harmonised way and obtaining royalty-free use, when this needs specific negotiations. The Budapest University of Technology is assisting UNESCO in this task. Understanding, that ZOPE is Open Source GPL compatible, it would be highly appreciated if you could communicate for the description to be presented by UNESCO the following details: - is it available under GPL or what means exactly "GPL compatible"? - availabilty of user manual, teacher guide, examples, discussion forum? - possibility to personalise it? Possibility to use other languages else than English? - Availabilty of partner to help external users? - hardware requirements? - informatics knowledge required for its use? - server uptime? Your kind co-operation will allow UNESCO to widely promote the use of your product. Thanks Pal Vasarhelyi

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Session object duplicate key
by Garikoitz Araolaza 01 Oct '02

01 Oct '02

Hi! I'm using the session manager for a simple home built e-commerce system with some code borrowed from the Zope examples. I don't know where to start searching for... specially because I am not able to determine which parameters/states produce this error. I understand that maybe my old session key is still alive in the server. I could clean it up, but it isn't a good solution for regular users. ;-) Any hint would be appreciated. Thanks a lot, once again! Gari Here is the traceback: ... File Script (Python), line 1, in itemNumber File /home/csmant/zope/2.5.1/lib/python/AccessControl/ZopeGuards.py, line 47, in guarded_getattr File /home/csmant/zope/2.5.1/lib/python/ZPublisher/HTTPRequest.py, line 851, in __getattr__ File /home/csmant/zope/2.5.1/lib/python/ZPublisher/HTTPRequest.py, line 837, in get File /home/csmant/zope/2.5.1/lib/python/Products/Sessions/SessionDataManager.py, line 92, in getSessionData (Object: session_data_manager) File /home/csmant/zope/2.5.1/lib/python/Products/Sessions/SessionDataManager.py, line 175, in _getSessionDataObject (Object: session_data_manager) File /home/csmant/zope/2.5.1/lib/python/Products/Transience/Transience.py, line 133, in new_or_existing (Object: session_data) File /home/csmant/zope/2.5.1/lib/python/Products/Transience/Transience.py, line 159, in new (Object: session_data) KeyError: duplicate key 55677973A0ffDLw6-UQ _________________________________________ Garikoitz Araolaza gari(a)eibar.org

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form variables and **kw
by Oliver Bleutgen 01 Oct '02

01 Oct '02

Hi all, I have some questions. Say I have a external method/product method return_vars which I call from a form: def return_vars(self, var=None, **kw): return "var: %s, kw: %s" % (var,kw) Is it correct that any passed form variable besides "var" will get lost, i.e. that ZPublisher will _not_ marshall the other variables into the method call? If so, why? Is this a python limitation? I played around with co_varnames and python doesn't seem to offer a possibility to recognize **kw as something special. Where does this marshalling happen, in ZPublisher/mapply.py? TIA, oliver

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Zope logos
by Stephan Goeldi 01 Oct '02

01 Oct '02

where are the zope logos? Someone packed them into a single zip file. I can't find them using Search on zope.org

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Regarding retrieving parameters in DTML.
by Paul Naveen Raj Jeyaraj 01 Oct '02

01 Oct '02

Hi, I am using Zope 2.5.1. I want to know whether it is possible to retrieve parameters passed through URL in DTML methods. For example, let us take this. I want to access test folder in my root directory of my Zope and want to pass a parameter to it. I am trying out the following URL for the same. http://mydomain.com/test?param=1. Is this URL correct? If so, how to retrieve the parameter in my DTML method? Expecting an earlier response. Thanks and regards, Paul.

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RE: debian zope instances
by H. Christian Gromoll 01 Oct '02

01 Oct '02

update: if I reboot my machine, I can again connect to the zope server, so the problem is not with OrderedFolder... Am I restarting zope the wrong way? I use zopectl restart (and als tried zopectl force-reload) thanks, christian

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