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Re: [Zope-dev] dtml-in attr request: rsort
by Andrew Lahser 25 Feb '00

25 Feb '00

There is already a "reverse" attribute, how would rsort differ from this? Drew Jeff Bauer <jbauer(a)rubic.com> said: > Hi all. > > In my DocumentTemplate presentations, I frequently > want to display items in reverse order. For example, > dated items in reverse chronological sequence -- most > recent to least recent. > > I usually create an inverse attribute so the items > will display in the desired order. This occurs > often enough that I'd like to request a new dtml-in > tag attribute: rsort. > > This feature would be trivial to implement and > shouldn't add any additional complexity to the > current interface. Thoughts? > > Jeff Bauer > Rubicon Research > > _______________________________________________ > 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 ) > >

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Longer traceback from Zope?
by Loren Stafford 25 Feb '00

25 Feb '00

I'm using zLOG to help with debugging, and I'm getting a bunch of these enigmatic log entries. Having just one traceback entry makes it hard to understand what happened. Is there a way to tell Zope to give me a longer traceback? ------ 2000-02-25T02:31:45 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\000\000\207' Traceback (innermost last): File C:\Zope214\lib\python\ZODB\Connection.py, line 391, in setstate AttributeError: 'None' object has no attribute 'load' ------ -- Thanks -- Loren

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ZCatalog cannot support chinese?
by Victor.Zhai＠ogilvy.com 25 Feb '00

25 Feb '00

Hi,all In my project, I want to use ZCatalog to build up a search interface! But It doesnot support Chinese. Can some one give me some advice on it. Victor zhai. "WorldSecure Server <ogilvy.com>" made the following annotations on 02/24/00 20:29:15 ------------------------------------------------------------------------------ Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer does not consent to email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of the Ogilvy Group shall be understood as neither given nor endorsed by it. ==============================================================================

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dtml-in attr request: rsort
by Jeff Bauer 25 Feb '00

25 Feb '00

Hi all. In my DocumentTemplate presentations, I frequently want to display items in reverse order. For example, dated items in reverse chronological sequence -- most recent to least recent. I usually create an inverse attribute so the items will display in the desired order. This occurs often enough that I'd like to request a new dtml-in tag attribute: rsort. This feature would be trivial to implement and shouldn't add any additional complexity to the current interface. Thoughts? Jeff Bauer Rubicon Research

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Re: [Zope-dev] ExtensionClass question
by James Henstridge 25 Feb '00

25 Feb '00

On Thu, 24 Feb 2000, Phillip J. Eby wrote: > At 05:33 PM 2/24/00 -0800, Michel Pelletier wrote: > The method chain of an ExtensionClass type structure can point back to a > previous method chain, thus allowing extension of the type. Similarly, the > other members of the type structure can point to existing routines. And, > as long as one uses a backwardly compatible data structure for the type, > one can subclass an existing ExtensionClass. It is usually easier, > however, to just create mixin ExtensionClasses for the different bits you > need, and combine them together as base classes for a Python class. > I had read the stuff about method chains, but just using method chains does not store any relationship between the two classes. If possible, I would like to be able to use subclass relationships for a bit of type safety in my code (ie. only accept ExtensionClasses of type xxx or its subclasses rather than accept any ExtensionClass). It must be possible to do something like this, as subclassing an ExtensionClass in python creates a new ExtensionClass. Doing the same in C must also be possible (although maybe not with ExtensionClass's current public API). James.

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ExtensionClass question
by James Henstridge 25 Feb '00

25 Feb '00

I posted a question to this list about the ExtensionClass module that seems to be maintained by the zope developers now. I haven't received a response yet, so I was wondering if this was the right place to ask, or was it because I posted on the weekend and the message got ignored? Rather than reposing it, I will just put a link to it in the archives: http://lists.zope.org/pipermail/zope-dev/2000-February/003389.html It is on subclassing ExtensionClasses in C. James. -- Email: james(a)daa.com.au WWW: http://www.daa.com.au/~james/

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Question about setting roles
by James W. Howe 24 Feb '00

24 Feb '00

I'm trying to track down why my subclass of folder seems to be having problems with permissions. I've discovered that if I override the definition of manage_main with my own template, security doesn't work correctly for that template. In particular, when the filtered options code is executed, my manage_main only has a role of 'Manager', but my folder instance allows 'Manager' and 'Publisher' for View Management Screens. The one thing I don't understand is how roles are assigned to template objects. For example, where/when were the roles assigned to my manage_main template? I've worked through the code to see how the manage_changePermissions works, but that only seems to set the permissions for the containing object, in this case my Folder subclass instance. In my case, it sets the _View_management_screens_Permission to ['Manager', 'Publisher']. How and when does this information make it back to the objects associated with this permission? How (when/where) would the roles be set for my manage_main template? I'm going to continue to look at things to see if I can figure this out myself, but it would help a great deal if someone could point me in the right direction. Thanks! James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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RE: Scheduler Transactions (was Private Product Objects)
by Martijn Pieters 24 Feb '00

24 Feb '00

From: Loren Stafford [mailto:lstaffor@dynalogic.com] > Moving over to zope-dev... Good idea. > > Martijn, don't worry. I'm not going to change designs in > mid-stream. But I > still have to think thru all the possibilities, perhaps > covering ground that > you've already explored and left behind. > > From: Martijn Pieters <mj(a)digicool.com> > Sent: February 24, 2000 03:24 AM > Subject: RE: [Zope] Private Product Objects (was: object icons) > > > > (Events are called using ZClient, because the Events have > to be called > > independent of current web requests, and you do need a HTTP REQUEST > > context). > > I assumed from the beginning that the event Dispatcher would > fire events > with RPC (ZClient or something like it) for the reasons you > mention, plus > the fact that the thread for the event is allocated by existing Zope > mechanisms. > > Then I started thinking about transactions and atomicity. You > don't want a > system failure to result either in loss of an event or > duplication of an > event. But how can you ensure that in the case of the Scheduler? > > So, I started wondering how to atomically coordinate the > updating of the > Schedule catalog (to disarm the event) with the execution of > the event's > action method. Why should this be atomic? The integrity of the Catalog is most important. First, in it's own RPC call, update the catalog (disarm or reschedule next call). Then, separate from this, call the Event. Yes, you run the risk of not calling a certain event in case of a system failure. But in that case the event could not have run anyway. I'd say, solve it like I'd do, and move any reliability issues to a next release. We are replacing cron here, not MessageQueue. -- Martijn Pieters, Software Engineer | Digital Creations http://www.digicool.com | Creators of Zope http://www.zope.org | mailto:mj@digicool.com ICQ: 4532236 | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 -------------------------------------------

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RE: XMLDocument "WrongDocument" error and object comparision...
by Amos Latteier 24 Feb '00

24 Feb '00

> I'm playing with XML Document, and I'm finding that I'm getting a > bogus WrongDocument error from the sample file. If I open up the > 'slides' document and hit 'Change' I'm getting a WrongDocument > exception at line 433 of Node.py. > > if document and ownerDocument and document != ownerDocument: > raise ZDOM.WrongDocumentException() > > (I also see this when I try to create a new document) > > Putting a > print "DOC", document, ownerDocument > print "DOC2", id(document), id(ownerDocument) > on the line before it gives back > > DOC <Document instance at 863bf90> <Document instance at 863bf90> > DOC2 139736152 139811552 > > so they _look_ like the same object, but comparision is failing. > > On a hunch, I tried changing the code to compare document.aq_base > and ownerDocument.aq_base, and this works. I have _no_ idea > if this is > correct, though. I think that you are right. Let me look at it a little more, and then I'll check in your patch. Thanks! -Amos -- Amos Latteier mailto:amos@digicool.com Digital Creations http://www.digicool.com

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RE: [Zope-dev] XMLDocument - Importing XML and assigning IDs to r esulting nodes
by Amos Latteier 24 Feb '00

24 Feb '00

> How do I import an XML document such that the IDs of the > resulting nodes is > derived from an attribute associated with the source XML tags. > > Ive tried using <tag id="foo"> but I get the following error: > > Error Type: Bad Request > Error Value: Invalid or duplicate property id > > Is there a way to do this, or are the nodes of an imported > XML file destined > to be given cryptic, numbered IDs? Unfortunately right now you cannot control the IDs of the nodes. This is a big problem with the current implementation. We definitely plan to fix this in later implementations. This problem along with a number of others are why XML Document is currently considered 'alpha' quality. -Amos -- Amos Latteier mailto:amos@digicool.com Digital Creations http://www.digicool.com

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