October 2000 - Zope - Zope lists

Disadvantages of using DTML
by Jason Spisak 10 Oct '00

10 Oct '00

Zopists, Can anyone tell me off hand any big disadvantages to not using DTML (Caching, etc...) and using a package like HyperText http://dustman.net/andy/python/HyperText to produce html display for your objects, and use python to process it? Jason Spisak 444(a)hiretechs.com

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Re: [Zope] Newbie question : ZopeTime & permissions
by Dieter Maurer 10 Oct '00

10 Oct '00

Aaron Straup Cope writes: > My problem is that I can't seem to figure out, specifically, which > permissions to give a user that will allow them to read ZopeTime(). Strange... "DateTime.DateTime" objects (and therefore "ZopeTime") are explicitely unprotected (and can be used by everyone). I tried your example as "Anonymous" (Zope 2.2.2) and it worked as expected (i.e. no NameError). Dieter

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ZODB question: get older object versions without undo
by Philipp Auersperg 10 Oct '00

10 Oct '00

I have two questons concerning ZODB: 1. Since ZODB does not overwrite objects on change one can get the older versions when undoing the changes. My question now: how can I access older versions of objects without undoing transactions? (I had a short glance at the ZODB classes, but found nothing) 2.Is it possible ( or will be ) to define ZODB objects for which updates are done by overwriting and not appending to the object database - That is an important issue for objects that are subject to frequent and simple changes. For example Webcounters or Advertising banners that count the clicks. Solutions to write these changes into external files (like FSCounter) are not more than emergency solutions for me. thanks phil

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Error List
by Daniel Rusch 10 Oct '00

10 Oct '00

Take a look at this http://www.python.org/doc/current/lib/module-exceptions.html Dan

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Error List
by Yvonne Totty 10 Oct '00

10 Oct '00

Hi! Is there somewhere I can get a list of errors and their meanings? Thanks! Yvonne

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how to "call" sequence-item
by Joachim Schmitz 10 Oct '00

10 Oct '00

Hello, I'm using the photo-product, when one has created a photo-instance "image" you can render this like so: <dtml-var "image(display='thumbnail')"> now I wanted to loop over all photos in a folder "Images" and did: <dtml-with Images> <dtml-in "objectItems('Photo')"> <dtml-call "REQUEST.set('bild',_['sequence-item'])"> <dtml-var bild><br> </dtml-in> </dtml-with> that displays all photos in their original size, but <dtml-var "bild(display='thumbnail')"> gives: Error Type: TypeError Error Value: call of non-function (type string) how can I call a sequence-item ? Mit freundlichen Grüßen Joachim Schmitz AixtraWare, Ing. Büro für Internetanwendungen Hüsgenstr. 33a, D-52457 Aldenhoven Telefon: +49-2464-8851, FAX: +49-2464-905163

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pop back namespace from stack ?
by Beuserie Frédéric (stbrice dsi) 10 Oct '00

10 Oct '00

hi, How can I pop back one namespace from the stack ?. In fact I need the id from the dtml-method I'm was called from. thanks a lot. ----------------------------------------- Beuserie Frederic DSI / Système et Exploitation - 3 Suisses Belgique Tel: +3269/882485 / Fax: +3269/882491 Email: F.Beuserie(a)3Suisses.be

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Where is the difference between URL0 and BASE3
by Loibl Johann 10 Oct '00

10 Oct '00

Hi together, Could someone tell me where is the difference between URL0 and BASE3 or URL1 and BASE2 ... Thanks for your helping hand, Hannes

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Re: [Zope] Fighting htmllib in external method
by Dieter Maurer 10 Oct '00

10 Oct '00

Jason Spisak writes: > I want to catalog some html files but I want to strip the html tags out. > htmlparser does a good job of that, but when I try to acces that from an > external method, I run into trouble. You may look at URL:http://www.dieter.handshake.de/pyprojects/zope/CatalogSupport.html It does the same as you want to do, but without the "formatter". Alternatively, you may try a "StringIO" instance as a file object. Finally, I can use files in external methods. You should, however, be careful as several threads can execute the same external method concurrently. Therefore, your files are better not global. Dieter

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RE: [Zope] Animated GIFs
by Max Møller Rasmussen 10 Oct '00

10 Oct '00

From: Lars Heber [mailto:lheber@debis.com] >Sorry, I think you misunderstood me! >I _don't_ want to stop the gif, but it does after the last frame! -- >Now I tried the same Zope page in NS and IE, this phenomenon appears only with >NS... I did understand you, but I could not replicate your problem in IE. I didn't try it in NS as I don't have it installed. So I would say it most be a Netscape specific problem. - Either it is because NS has some abscure bug if the file doesn't have a .gif name with a dot, but as far as I remember you had allready tried that. - Maybe Zope sends the wrong header that somehow makes NS foul up, but when I send a request like this via telnet: >telnet localhost 8080 >GET /test/ferierejser_banner_50aar.gif HTTP/1.0 I get this response, which looks fine. >>HTTP/1.0 200 OK >>Server: Zope/Zope 2.2.2 (binary release, python 1.5.2, win32-x86) ZServer/1.1b1 >>Date: Tue, 10 Oct 2000 09:20:38 GMT >>Connection: close >>Content-Type: image/gif >>Content-Length: 15341 >>Last-Modified: Tue, 10 Oct 2000 06:40:53 GMT >>GIF89a\?<i?áfHJèuÞ+«lòï .......... ....................lots of Gif data So I don't think it's a zope problem. Have you tried to save the gif you receive and then open it again, if it loops then it is an interresting problem. My bet would be that it is a NS problem. Maybe try it out on antoher version of NS Regards Max M

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