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ANN: Core Session Tracking 0.7
by Chris McDonough 30 Jan '01

30 Jan '01

A new release of the "CoreSessionTracking" product is out. The product allows you to associate state with anonymous visitors between requests. The latest version (0.7) fixes a fairly serious kid-clicking-related bug found by Randall Kern that effects RAM-based ("internal") session data containers. If you need to upgrade from 0.6, all that is required is to untar/ungzip this release on top of the 0.6 release files. Then you must restart. You can find the product at http://www.zope.org/Members/mcdonc/Products/CoreSessionTracking/index_html - C

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Re: [Zope] "Picture of the day" product
by Tres Seaver 30 Jan '01

30 Jan '01

Timothy Wilson <wilson(a)visi.com> wrote: > > Hey everyone, > > I was looking at linux.com the today and I noticed their "Daily Photo." I > occurred to me that that would be a fun addition to the school's page that > I'm developing. My first thought would be to: > > * inherit from Image > * add caption, date taken, etc. properties > * create an archive of past photos > > What I'm not sure about is how to have Zope automatically display the photo > for a day, then archive it. Would a boolean property of the ZClass work? Is > it possible to have Zope set the property of a ZClass instance at certain > time? Any thoughts on how this would be designed? This kind of thing is a "query-on-metadata" application; I would put all these images into a single folder (maybe chunked into subfolders by month?), mark them each with an 'effective' property (of type 'Date'), and then select the appropriate image via a catalog query, e.g.:: <dtml-in "Catalog( meta_type='Image' , effective=( ZopeTime().earliestTime(), ZopeTime().latestTime() ) , effective_usage='range:min:max' # other query parms here, including any sorting... )"> <dtml-if sequence-start> <dtml-var "Catalog.getobject( data_record_id_ )"> </dtml-if> </dtml-in> Or you could just have the catalog fetch the images sorted by effective/descending, and then pick off the first one; this would keep an image around until supplanted by a newer one. Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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CoreSessionTracking timeout
by Oliver Vecernik 30 Jan '01

30 Jan '01

Hi, I am playing around with this great product and (nearly) all works as expected. This is exactly what I need for my application and you guys are saving a lot of time for me! Thank you. The only thing I don't understand is the timeout of session_data_manager. If I test the example given in the help I expect 'Before change:' to be empty if called the first time (works) and filled for each subsequent call (works also). If timeout expires I expect 'Before change:' to be empty again, thus generating a new token. But it isn't. It still uses the old token. What's going on? I tested with cookies and form vars namespace, but it has always the same behaviour. What's the quirk? Oliver

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RESPONSE.redirect
by Oliver Vecernik 30 Jan '01

30 Jan '01

Hi all, I'd like to show a page and after a few seconds I'd like to redirect to another page. If I simply add  it is done immediately. How can I achieve a delay of a couple of seconds? Oliver

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How to upgrade to 2.3 (no differential install?)
by Brad Clements 30 Jan '01

30 Jan '01

I'm running Zope 2.2 on RH Linux 7 I see that there's no 2.2-to-2.3 .tar file.. Why? What's the correct way to upgrade my existing Zope installation? -- Call me stupid, I can't find the proper command line switch to get tar to ignore the top level directory name Zope-2.3.0-linux2-86 Do I have to untar into a junk directory, then cp -r everything to my current dir? Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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[OT perhaps] ZMySQLDA
by Lee Reilly CS1997 30 Jan '01

30 Jan '01

Hi, I wonder if someone could comment on what they think my problem with the following may be. I have the ZMySQL DA installed, which works fine (I think). Testing my database in UNIX I created a table and populated it with some values. From the 'Test' page of the database connection in Zope I queried this table and it returned the correct values. So the connection string's fine. Now, here is where I ran into problems. Entering the following into the 'Test' page executes no problem. CREATE TABLE STUDENTS ( matric float (7), fname varchar(20), lname varchar (30), uname varchar (8) ) when i try and query it from Zope or Unix (select * from students) I get "OperationalError: (1146, "Table 'lreilly.students' doesn't exist")" and (table lreilly.students does not exist" respectively. I've even tried changing the tablename to lreilly.students but still no luck. Can anyone see what my problem is? Thank you very much in advance. - Best regards, Lee

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Catalogaware ZClass
by Sven Hohage 30 Jan '01

30 Jan '01

Hello, usually I'm more patient but this time it's a very important feature(I have to build an archive). That's my question from yesterday: --->> I try to delete a Catalogware ZClass with subobjects that are also ZClasses. That's my method to delete a Class: <dtml-in "objectValues('ZClassPage')"> <dtml-let x=sequence-item> <dtml- if "in_work"> <dtml-call "manage_delObjects([x.id])"> </dtml-if> </dtml-let> </dtml-in> But Zope answers: An exception occurred in a DTML method or document. Error type: BadRequest Error value: 980785769 does not exist But '980785769' EXISTS in the management-interface !! :-(( ---> It would be very nice if someone could give me a hint.Thanks!

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Re: jcntuserfolder and Zope 2.3.0 works for me
by Jephte CLAIN 30 Jan '01

30 Jan '01

jimbo wrote: > I'm not sure what you mean by it only works with 2.1.x. I mean, it was designed and realized with Zope 2.1.x in mind. My customer runs Zope 2.1.6 and the product runs with its installation. That is all that matters. I know that the Zope security machinery was changed in Zope 2.2 so jcNTUserFolder should not work with it (but, it might work, I don't know) I also kwnow that the security machinery in Zope 2.3 was made backwardly compatible with older authentication products like mine, but I cannot guarantee it because I didn't even try it on Zope 2.3 > I'm using it to authenticate users from a NT domain. Seems to work. > The problem I have is how do I use it in the PTK. > I'm not sure how to replace the default one with the ntuserfolder. Well, I have not looked at the PTK for 1 year. If the PTK use the login manager, the short answer is 'you probably can't replace the default one with jcntuserfolder' if the PTK use a modified user folder (like adding some properties to user objects), I guess you can't just replace the default one with jcntuserfolder if the PTK use the default vanilla user folder, well, it might work to just replace the default one with jcntuserfolder. regards, jephte.clain(a)univ-reunion.fr

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Is it possible to use regular CGI's like htDig with zserver?
by Chris Beaumont 30 Jan '01

30 Jan '01

I've been fooling around with htDig as a method of searching both my dynamic pages and older static pages, on two different sites, and it works great, since it's a 'spidering' search engine.... But since it is running on the same machine as my Zope install, while experimenting with it, I've had to run it on port 81, using a dedicated instance of Apache. I realize that the "right" way to do this would be to run Zope as a CGI and use Apache as the server, but since the performance of zserver has been quite good I wanted to ask this. I know that Zope can serve pages put of the filesystem. (i.e. act as a standard web server in some ways) Can it also avail itself of the services of Apache-compatible CGIs, notably htDig? And if so, how would I set that up? Thank you! Chris Beaumont cbeaumon(a)msri.org

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Re: [Zope] where are the pages stored?
by Dieter Maurer 30 Jan '01

30 Jan '01

Horatio B. Bogbindero writes: > btw, were does zope store the template pages and objects? i tried do look > into the folders but i could not seem to find it. is there are a way of > moving this document root to a different folder? Before Zope 2.3, they were in "lib/python/*/*.dtml". Since Zope 2.3, they are in "lib/python/*/dtml/". > also the reason why i have so many questions is because i could not find > the zope documentation set in the zope source distribution. can someone > point me out the distribution so that i can read the fine manual(RTFM) > instead. thanks. Click on any "Help" button in the Zope management interface. Dieter

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