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2.3.0 bug in fmt=?
by Zope mailing lists 01 Feb '01

01 Feb '01

Nevermind. As usual, as soon as you post you figure it out. The value of the var was a string and not a float... Sorry for wasting bandwidth. Although, come to think of it, should it throw an error rather than silently eating the value? --RDM

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2.3.0 bug in fmt=?
by Zope mailing lists 01 Feb '01

01 Feb '01

<dtml-var somevar fmt=dollars-and-cents> produces a blank, no matter what the value of somevar. I could swear this works in other versions of zope, but it seems like an awfully fundamental bug to have slipped through the 2.3.0 release process. Can anyone tell me what stupid thing I'm doing wrong? --RDM

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Changing Ownership
by Andy McKay 01 Feb '01

01 Feb '01

I have a folder inside a user_info_folder that allows users to store data (these fabled session snapshots of earlier posts). When I create it I want to set the Ownership of that folder to the user. Since a user is created by someone else (only admin can create users), the admin person is becoming the owner. Simple I thought, in python when the object is created, set the ownership obj.changeOwnership(user) where user is: user = self.acl_users.getUser(id) The error I get back is Error Type: AttributeError Error Value: aq_inner ... File d:\Zope23\lib\python\AccessControl\Owned.py, line 168, in changeOwnership (Object: Traversable) File d:\Zope23\lib\python\AccessControl\Owned.py, line 302, in ownerInfo AttributeError: (see above) It would seem ownerInfo is looking for the User context to find the path to the object. Anyway the end result is I can't seem to set the owner. Is there a simpler way to do this. Is getUser actually returning the wrong thing? Cheers. -- Andy McKay.

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Fw: [Zope-dev] Storing session objects in a ZODB
by Chris McDonough 31 Jan '01

31 Jan '01

This is a forwarding of an interesting session-related discussion between Andy and I... it covers the idea of storing session states as "snapshots" at a particular time, later allowing users to select a session state. This is useful if you wish to allow users to make incremental changes to data in a session and "bookmark" a session state for later copying into the current session. This is something that the "bare" session tracking stuff won't do for you, although it can facilitate it tremendously. Input welcomed! - C ----- Original Message ----- From: "Andy McKay" <andym(a)ActiveState.com> To: "Chris McDonough" <chrism(a)digicool.com> Sent: Wednesday, January 31, 2001 1:56 PM Subject: Re: [Zope-dev] Storing session objects in a ZODB > > I think you may be trying to use sessions to do something that sessions > > don't do. You can *use* the sessioning machinery as a base to build the > > infrastructure to do such a thing, but it won't do it out of the box. I > am > > currently trying to build an "onSessionStart" and "onSessionEnd" event > into > > session data objects. If you had this capability, an arbitrary Python > > method (or DTML method or external method) could be called when a session > > data object is created and when it expires. If you were to make use of > > these hooks to copy the state of the session data object into another > > structure (related to the currently logged in user - a "checkpoint" if you > > will), you could build a catalog of session states that could be recopied > > into the current session namespace. > > > > Alternately, you could forego the use of events and just have a button > that > > says "save session state" somewhere, and copy the contents of the session > > namespace into something else. Then when a user wanted to choose a > session > > state, copy it back into the current session namespace. This is the same > > idea, it just lets the user be explicit about what session state he wants > to > > use instead of depending on the event hook to create a new state. > > Bingo, yes that's it! > > > Does this make sense? Can I cc this to Zope-Dev so we can get some > > discussion about it? > > Absolutely! > > -- > Andy McKay. > > > > > > > > ----- Original Message ----- > > > From: "Chris McDonough" <chrism(a)digicool.com> > > > To: "Andy McKay" <andym(a)ActiveState.com> > > > Sent: Tuesday, January 30, 2001 9:53 AM > > > Subject: Re: [Zope-dev] Storing session objects in a ZODB > > > > > > > > > > Andy, > > > > > > > > I'm still not sure why you wouldn't set up an external data > container.. > > if > > > > you want, you can call me at 540-371-6909 if you think you can explain > > it > > > > better over the phone... > > > > > > > > - C > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > From: "Andy McKay" <andym(a)ActiveState.com> > > > > To: "Chris McDonough" <chrism(a)digicool.com> > > > > Sent: Tuesday, January 30, 2001 12:28 PM > > > > Subject: Re: [Zope-dev] Storing session objects in a ZODB > > > > > > > > > > > > > Well each user rummages through a site and saves preferences, I use > > > these > > > > > preferences for displaying things in a certain manner, generating > SQL > > > etc. > > > > > Since some of these SQL statements get quite complex, it would be > nice > > > to > > > > be > > > > > to able to pull saved session x which has a query that "looks up by > x > > by > > > y > > > > > excluding z" etc... > > > > > > > > > > So anyway I like using the ZODB for this kind of storage since it's > of > > > low > > > > > volume and a large amount of reads and the users want to use > > acquisition > > > > to > > > > > the full (we have a wacky hierarchy). If I could pull that into a > text > > > > area > > > > > to allow level editing then that would be an added bonus... > > > > > > > > > > Did that make sense? > > > > > -- > > > > > Andy McKay. > > > > > > > > > > > > > > > ----- Original Message ----- > > > > > From: "Chris McDonough" <chrism(a)digicool.com> > > > > > To: "Andy McKay" <andym(a)ActiveState.com> > > > > > Sent: Monday, January 29, 2001 5:49 PM > > > > > Subject: Re: [Zope-dev] Storing session objects in a ZODB > > > > > > > > > > > > > > > > > Sure but users want to be able acess and manipulate the stored > > > session > > > > > > > objects, without them being loaded... Im going for a bike ride > to > > > > think > > > > > > > about this one. > > > > > > > > > > > > Erm. What? :-) Can you give me an example? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

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Re: [Zope-dev] asynchat producer ready() method patch.
by Dieter Maurer 31 Jan '01

31 Jan '01

Donovan Baarda writes: > I remember reading ages ago on a wishlist for ZServer that someone was > thinking of adding blocking support to producers. This patch adds support > for just that in a non-intrusive way. I haven't tried applying this patch to > ZServer, but it _should_ work. What does "blocking support dor producers" mean? Dieter

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REMINDER: Zope track at Python 9!
by Spicklemire, Jerry 31 Jan '01

31 Jan '01

BTW, if you have trouble "seeing" the Python9.org server, there is a mirror site: http://www1.python9.org/

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REMINDER: Zope track at Python 9!
by Brian Lloyd 31 Jan '01

31 Jan '01

Hello all, Just a reminder that the ninth international Python conference is right around the corner, and that there will be a Zope track again this year. More information on the Zope Track at Python 9 may be found at: http://www.python9.org/p9-zope1.html We invite you to come out and meet fellow Zopistas, learn about Perl for Zope, the future of ZPatterns and what's in store for Zope in 2001. Note that "early bird" registration for Python 9 ends February 2nd - for more information about Python 9 or the Zope Track see http://www.python9.org/. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Found an fatal error in Zope 2.3.0 :)
by Radek Hnilica 31 Jan '01

31 Jan '01

Hello all, While trying to debianize, compile and install new zope 2.3.0 I found that file z2.py doesn't contain necesary first line. I look to previous version 2.2.4 and there it is. #!/usr/bin/env python The source was taken from zope.org. I'v also look at CVS and there it's missing to. -- Radek Hnilica <Radek_Hnilica at LinuxFan dot COM>

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Indexing/Searching lots of XML-data
by Thomas Weholt 31 Jan '01

31 Jan '01

Hi, I got alot of XML-files I want to publish using Zope. What I need is to be able to upload them into specific folders, index them, let users search their contents and have the result displayed in some form, hopefully using XSLT and getting a nice browser-friendly output. Any clues? Best regards, Thomas Weholt

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Poor programming practice?
by Robin Becker 31 Jan '01

31 Jan '01

I have been trying to make use of the builtin medusa ftp_server classes and after struggling a while came across the strange practice some internal zope developer has of dynamically changing classes at runtime. ie in ZServer.FTPServer I came across from medusa.ftp_server import ftp_channel, ftp_server, recv_channel ....... ....... # Override ftp server receive channel reponse mechanism # XXX hack alert, this should probably be redone in a more OO way. def handle_close (self): .......... self.readable=lambda :0 # don't call close again recv_channel.handle_close=handle_close which makes it virtually impossible to re-use medusa's ftp_server in a reasonable way. The comment says it all. The real problem is that ftp_channel uses a method make_recv_channel which uses a global class recv_channel and the recv_channel class has a particular method which zope wants to override. How ought this kind of situation to be handled more cleanly? -- Robin Becker

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