December 2000 - Zope-Dev

ZopeLDAP 1.1.0 release
by Jeffrey P Shell 18 Dec '00

18 Dec '00

"ZopeLDAP 1.1.0", http://www.zope.org/Members/jshell/ZopeLDAP/ is released, bringing in a bevy of changes, including: o New ability to run in a non-transactional mode (this is critical to avoid a known bug when updating more than one entry object per transaction) o Much improved Entry object API that is Python Scripting\DTML Scripting friendly o Some new documentation (not yet in help system format though) about programming Entry objects. The *manage_* style of programming Entry objects has not changed, but the core API has. Anything using methods like '_set()', '_addSubentry()' will be affected.

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Re: [Zope-dev] RE: objectIds accessiblilty & and a proposal
by Dieter Maurer 18 Dec '00

18 Dec '00

Steve Alexander writes: > On my pie-in-the-sky zope wishlist: > > What I'd like is a new tab for zope objects that allows me to say which > protocols the object is accessible from, and what to do if not. > > For example: > > access route accessible? action > > called from template yes > http on port 8080 no return 404 > ftp yes > > > Another example: > > access route accessible? action > > called from template yes > http on port 8080 no redirect to URL1 Sounds good to me. With the exception that I do not like the explicit port references. I would like to see there an indirection (e.g. use a name which can be mapped to a port at a central place). Dieter

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Re: [Zope-dev] more on keyword indexes
by Josh Zeidner 18 Dec '00

18 Dec '00

Hello, Thanks for all the replies. Its seems there are two conflicting answers to my questions. Steve Alexander says that it is possible to query indexes using the syntax <dtml-in "Catalog.searchResults( doc_keywords = ['one','two','ect'] >. However, Dieter says that it is not yet possible to query for more than one keyword at once. It seems to me that these two sentiments are mutually exclusive. Am I mistaken here? -josh >Josh Zeidner writes: > > OK. Is it possible to query keyword indexes for several keywords at >once? >Not that I know of. > >You either have to extend ZCatalog or wait some time. >There are different people working on ZCatalog enhancements. > > > Again, I am reporting a bug .... >You already know the Collector? >It is Zope's bug tracking system. > >You find it via zope.org. >Its old URL has been > > URL:http://classic.zope.org:8080/Collector > >but this might have changed after the recent changes on zope.org. > > >I have had very good response to Collector bug reports for Zope itself. >At least in the past, bug reports and even patches for ZCatalog >probably have been ignored, however. I hope, this has changed >meanwhile. > >By the way: > > * What does "unpredictable results" mean? > > >Dieter > >PS: I have just blocked mail from "hotmail.com" (and "excite.com") > because I got an increasing number of bulk email ad's > with a faked "from: XXX(a)hotmail.com" header. > > This means: I will no longer see direct messages from > you, only your Zope mailing list messages which reach me > with a delay of up to one day. > >_______________________________________________ >Zope-Dev maillist - Zope-Dev(a)zope.org >http://lists.zope.org/mailman/listinfo/zope-dev >** No cross posts or HTML encoding! ** >(Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope ) > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

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Re: [Zope-dev] Changing hostname and port without SiteAccess
by Dieter Maurer 18 Dec '00

18 Dec '00

Martin Winkler writes: > .... > I cannot use SiteAccess (because I need multiple ZCatalogs), and my Zope > server (port 8080) is behind squid (in http-accelerated mode - port 80). > > What I would need is changing the hostname and port in the html-responses > like this: http://localname.com:8080/blah to > http://officialserver.com/blah , so the client reconnects to squid, not > zope itself. We have the same situation. We use SiteAccess *AND* ZCatalog. Please, see my message from a few days ago (to zope(a)zope.org) Dieter

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Re: [Zope-dev] more on keyword indexes
by Josh Zeidner 18 Dec '00

18 Dec '00

Thanks for the reply. As for the ( MediaKeywords in ['ouch'] ) this is featured on a Zope article about keyword indexes and it should be updated. >Josh Zeidner writes: > > .... > > This seems like the obvious result: BUT: it depends if you want a >AND/OR > > type search. >ZCatalog combines several search terms for a single index with >"OR" and search expressions for different indexes with >an "AND". OK. Is it possible to query keyword indexes for several keywords at once? If so, what is the syntax? Again, I am reporting a bug I have found that even if I am querying for only one( using the aformentioned syntax ), the results are unpredictable. I am using CatalogAware ZClasses and I am quite sure that the words are indexed( by reporting the featured MetaData ). -josh zeidner _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

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new 2.2.4 security/role bug ?? (ZCatalog related ??)
by Didier Georgieff 18 Dec '00

18 Dec '00

Hello, I'm experimenting some really weird and annoying things since i upgraded to 2.2.4 with 12-08 and even with 12-15a hotfix (seems to be ok in 2.2.2) For all objects, I can access directly (URL) with no problem (according to the roles and the local roles. This is ok). For some of those objects (seems to be all the one i've added in 2.2.4 in folders with local roles) I can't (exeption raise) access the objects while in the context of the catalog (those objects are Catalog Aware via Yihaw product). I epurate the method until this minimal test method who still raise the exeption <dtml-in Catalog> <dtml-with "Catalog.getobject(data_record_id_)"> <a href="&dtml-absolute_url;"><dtml-var title_or_id></a><br> </dtml-with> </dtml-in> I have a workaround with a <dtml-try> but i miss all the objects, while they are fully reachable directly via their URL The problems seems to be on objects with local roles (anonymous has no view, no access content and other roles have this autorisations via local roles). The second weird thing (should help for a diagnostic) is : While i have "manager" role (i can do whatever i want on the manage interface), i tried to give a proxy role to my test method, to see if i could investigate further. And trying to change the proxy role raised an execption, despite the fact i have manager role with full autorisations. This last thing makes me think is an acquisition/role/security bug. Any idea/solution because we offcially open tomorrow morning, and i'm in a deep.... well embarassed ;-)) =======> This is the FIRST traceback. Zope Error Zope has encountered an error while publishing this resource. Unauthorized You are not authorized to access title_or_id. Traceback (innermost last): File /home/georgieff/Zope-2.2.2- src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /home/georgieff/Zope-2.2.2- src/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/georgieff/Zope-2.2.2- src/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/georgieff/Zope-2.2.2- src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: test_latest) File /home/georgieff/Zope-2.2.2- src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: test_latest) File /home/georgieff/Zope-2.2.2- src/lib/python/OFS/DTMLMethod.py, line 172, in __call__ (Object: test_latest) File /home/georgieff/Zope-2.2.2- src/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: test_latest) File /home/georgieff/Zope-2.2.2- src/lib/python/DocumentTemplate/DT_In.py, line 611, in renderwb (Object: Catalog(bobobase_modification_time=ZopeTime()-14, bobobase_modification_time_usage='range:min', sort_on='bobobase_modification_time', sort_order='reverse')) File /home/georgieff/Zope-2.2.2- src/lib/python/DocumentTemplate/DT_With.py, line 146, in render (Object: Catalog.getobject(data_record_id_)) File /home/georgieff/Zope-2.2.2- src/lib/python/OFS/DTMLMethod.py, line 194, in validate (Object: test_latest) File /home/georgieff/Zope-2.2.2- src/lib/python/AccessControl/SecurityManager.py, line 139, in validate File /home/georgieff/Zope-2.2.2- src/lib/python/AccessControl/ZopeSecurityPolicy.py, line 209, in validate Unauthorized: (see above) =======> This is the SECOND traceback. Zope Error Zope has encountered an error while publishing this resource. Forbidden You are not authorized to change test_latest because you do not have proxy roles. Traceback (innermost last): File /home/georgieff/Zope-2.2.2-src/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /home/georgieff/Zope-2.2.2-src/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/georgieff/Zope-2.2.2-src/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: test_latest) File /home/georgieff/Zope-2.2.2-src/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/georgieff/Zope-2.2.2-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_proxy) File /home/georgieff/Zope-2.2.2-src/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_proxy) File /home/georgieff/Zope-2.2.2-src/lib/python/OFS/DTMLMethod.py, line 278, in manage_proxy (Object: test_latest) File /home/georgieff/Zope-2.2.2-src/lib/python/OFS/DTMLMethod.py, line 271, in _validateProxy (Object: test_latest) Forbidden: (see above) -- Didier Georgieff DDAF du Bas-Rhin - Cellule SIG 2, rue des Mineurs 67070 Strasbourg Cedex tél : 03.88.25.20.33 - fax : 03.88.25.20.01 email : didier.georgieff(a)agriculture.gouv.fr SIT du Bas-Rhin : http://www.bas-rhin.sit.gouv.fr GéoWeb http://sertit10.u-strasbg.fr

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ZPatterns, ZClasses, Specialists: Assigning responsibilities
by Itai Tavor 18 Dec '00

18 Dec '00

I'm having problems deciding where certain methods should be implemented. In some cases it's easy - for example, objects manage themselves, Specialists manage collections, so editInstanceForm belongs in the ZClass, while listOpenOrders belongs in the Specialist. But here are some cases where it's not as clear: 1. I want to edit an object from the editing form of another object. So I give my object an editInstanceSnippet method. It's very similar to editInstanceForm, except that it's not a full html document. Should it go in the ZClass? But it's a method used for application integration - so maybe it belongs in the Specialist? 2. In a typical shopping cart application, a Product object will be responsible for adding itself to an order, right? So the Product will have an addMeToOrderForm, which will call addMeToOrder, which in turn will call order.addOrderLineItem method. I think. But here's a complication: I have the following ZClasses, with matching Specialists: Product, Graphic, Order, OrderLineItem. When a customer adds a product to their order, they have to provide a graphic file which will be printed on the product (imagine buying a lunch box with your cat's photo on it). The Graphics Specialist can provide a addGraphicSnippet form. But who's responsible for asking for this graphic when adding the product to the order? Is it still the Product object? But a Product turns into a Product-with-Graphic only when it's a part of an order, so is it correct for the Product to even know about Graphics? the alternative is to move the addToOrder methods to either Order or OrderLineItems, but this doesn't make any more sense because these would then have to know a lot more about a Product than is good for them. Any ideas? TIA Itai -- Itai Tavor "Je sautille, donc je suis." C3Works itai(a)c3works.com - Kermit the Frog "If you haven't got your health, you haven't got anything"

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Changing hostname and port without SiteAccess
by Martin Winkler 18 Dec '00

18 Dec '00

Hello list, I already put my question on the "zope(a)zope.org" list, but there was no solution in sight, so I'm trying to get deeper (spell: start using) into python. I cannot use SiteAccess (because I need multiple ZCatalogs), and my Zope server (port 8080) is behind squid (in http-accelerated mode - port 80). What I would need is changing the hostname and port in the html-responses like this: http://localname.com:8080/blah to http://officialserver.com/blah , so the client reconnects to squid, not zope itself. Any hints where to start looking for the right python files or even functions/methods? Thanks in advance for your info, Martin

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Login updating database (so ZEO is slow)
by Bjorn Stabell 18 Dec '00

18 Dec '00

Hi, We've been experimenting with ZEO for a few months. The intended use is to have a ZEO client on our LAN, one on the Internet backbone in China, and one in the US, but there are two problems preventing us from using it: 1. updates are very slow, slower than accessing the ZEO client closest to the ZEO server directly 2. logging in updates the database, so they are consequently also very slow (in addition: to use it well we need a distributed director, and atomically updating a set of ZEO installations is not trivial.) Why does logins update the database? Is there any way to turn that off easily? We tested running the ZEO server on our LAN, and the ZEO client on the backbone of the Internet, communicating over a 64kbps DDN line... It took several minutes to log in! :) Most people thought our server had crashed. Would it be possible to support asynchronous updates (optimistic locking) and conflict resolution in the future, allowing for no wait time? (sort-of like Notes and CVS) Bye, -- Bjorn <bjorn(a)exoweb.net>

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Multilingual websites
by Bjorn Stabell 18 Dec '00

18 Dec '00

Hi there, I'm working on improving the support for multilingual websites in Zope. Already I've found some tools to be of great help: SiteAccess, Translator, and Transparent Folder (and zzLocale, although I'm mostly interested in ZODB objects). The Transparent Folder enabled me to separate the code, content, and design into separate folders (yeah! it should really be part of the core!), the Translator allows me to externalize strings and localize objects that I want to include (via <dtml-lvar). I've run into a couple of problems with the Translator product, though, mainly because I want to localize whole documents, but let them keep the same URL. Let's say I have a "product_info" document. I could put it in a separate ISO language folder, e.g., zh/de/fr/en/no, but then the normal traversal engine can't find it (only dtml-lvar can) unless I explicitly say which folder it is in, which kind-of ruins the point. The ideal case is that: http://website/company/info would find and return zh/company/info de/company/info ... company/info based on the user's language preference. I thought about using SiteAccess to do that, but it's proving hard, and also would only allow me to do a "language split" at the top. A more interesting solution would be to patch the traversal engine (could I do it with SiteAccess?) to look for a particular language version of each object (designated by adding the language's ISO code to the name or some other such convention); in that way I could make company/ a global directory, or I would chose to make it into a localized directory, i.e., all of these would work: company:zh/info company/info:zh company:de/info etc... Could this be done with Zope? Another thought was to make a special Transparent Folder (maybe called Localized Folder) that would resolve accesses to subobjects based on the user's language preference. Different language versions of each object could be put in separate sub-folders, as it is for the Translator product. PS! Any chance of seeing an integration of the core (at least language matching) functionality of Translator and zzLocale? These two products should really become part of the core ASAP, in some form or another. Bye, -- Bjorn

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