- Zope - Zope lists

Sorting on 2 or more properties
by Michael Long 22 Apr '03

22 Apr '03

Hi all, I am passing a list of objects to a zpt and would like to sort them on 2 or more of the properties. For example I have a class object with the following properties: id professor_name student_name course_number I would like to sort first on the professor_name, then course_number, and then finally student_name. I have googled and can only find examples for sorting on one property at a time. tia, Mike

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Filtered WebDAV View Folder
by Evan Simpson 22 Apr '03

22 Apr '03

Has anyone out there built, or tried to build, something like this: I'd like to be able to create an object that acts as a sort of filtering WebDAV proxy for its container. By this, I mean that if you navigate to the object using WebDAV, it appears to be a collection containing a subset of the objects in its container. This could be configurable, but I'd be happy if it only showed Files, Images, Folders, and ZPTs. Of course, if you looked in one of the Folders "inside" the object, it would also show you a filtered view of that Folder. It would only support normal file operations (PUT, GET, locking, etc.) on the proxied objects. This would allow me to point our web designer's DreamWeaver at this object and allow him to work without worrying about Scripts, SQL, or other clutter. Cheers, Evan @ 4-am

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HTML
by Gregory LaVelle 22 Apr '03

22 Apr '03

I am trying to find out if there is a way to convert HTML into Zope and Zope into HTML.

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Newbie question: Log out completely
by Mico Siahaan 22 Apr '03

22 Apr '03

In our website, there some pages that could be accessed only by members. So if member want to access this pages they have log in first. The problem is, when they log out, if they don't close the browser, anyone could press 'Back button in the browser then access the members' pages. Can anybody give me a hint, how to prevent this? I could be inform members to close browser when they log out, but just in case they forget this :) FYI, I used exUserFolder to provide authentication to our site. Thanks. -mico-

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WebDAV+Netscape Composer fails when updating pages.
by Felipe Barousse Boué 22 Apr '03

22 Apr '03

Hello all: I am trying to use Netscape 7.02's Composer (because that is what the customer uses, and won't change... in case you wonder, no options here) product to edit simple pure HTML (no DTML at all) pages on a Zope system with WebDAV enabled (parameter -W 8900 at ~/z2.py). When the file to be edited is new within Zope (i.e. there is no previous object with that name), everything works perfect. The document gets created and its accesible from any other object in Zope (permissions and roles taken into account.) If we publish from Composer to a previously created page in Zope, Composer reports a succesful "publishing" but actually the file never changes in Zope. The log entries in Z2.log with this actions are: When creating the file: (works fine) 127.0.0.1 - man [20/Apr/2003:03:05:25 -0500] "PUT /folder/dox/P-OP-000099.html HTTP/1.1" 201 233 "" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.2) Gecko/20030208 Netscape/7.02" When "updating" the pre-existing file. (no err reported, neverthless object is NOT changes/updated): 127.0.0.1 - man [20/Apr/2003:11:22:29 -0500] "PUT /folder/dox/P-OP-000099.html HTTP/1.1" 204 236 "" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.2) Gecko/20030208 Netscape/7.02 The above behavior happens both, using a "Manager" level account in Zope, which can read/write anywhere in the Zope tree and also with a normal User account. It also happens no matter where in the Zope tree this is done. Any suggestions of what may be happening with using WebDav to publish web pages, specially UPDATING pre-existent pages in a Zope system ? Thanks in advance. Felipe Barousse.

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(no subject)
by Terry Kerr 22 Apr '03

22 Apr '03

Hi, I have a Keyword Index setup in a Catalog, and when I search for more than one keyword using a query such as {'query':['one', 'two'], 'operator':'and'}, and there are no indexed records with either of the keywords, all records in the Catalog are returned. In this instance, I want NO records to be returned. Is this easily possible? terry -- Terry Kerr terry(a)adroit.net Adroit Internet Solutions www.adroit.net +61 3 9563 4461

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ZEO hogging too much memory
by Wankyu Choi 22 Apr '03

22 Apr '03

Hi all, I had a nightmare with my ZEO setup last night. Had to drive to the data center to clean up the mess... in wee hours. (3AM) The ZEO server has 4G RAM and running on RedHat Linux 8 with 2.4.0 custom kernel. Thought it was plenty. I have one ZEO client with 2G RAM ZEO server: 4G RAM, P4 Xeon Dual (RH Linux with 2.4.0 kernel) ZEO client: 2G RAM, P3 tualatin Dual (RH Linux with 2.4.0 kernel) It seems that the server never stops caching the objects it serves into memory until kswapd chimes in and starts paging away. kswapd was hogging all resources left and I had to reboot. I wasn't able to type a single keystroke remotely. argh.. a remote reboot attempt failed miserably... I did some research and found many reported problems with kswapd and kernel 2.4.0. What I'm worried about though is why ZEO let this happen. I did some experimentation after a clean reboot: adding and reading objects to the ZEO storage with the top utility running on a console. After an hour, ZEO was using more than 2G of RAM. The objects are just simple CMF/Plone stuff: documents and small sized images with no heavy-weight files. The traffic? Minimal. As I was the only one adding and reading stuff. And this might be a real stupid question but, when I flush cached objects using a ZEO client's management screen, what am I flushing? Objects from the ZEO server's memory or client's? Flushing objects didn't free up any memory on the ZEO server. Anybody ever had similar problems with ZEO (or Zope per se) hogging resources? How can I limit the number of objects the ZEO server itself is caching? Just hope it's not leaking memory. --------------------------------------------------------------- Wankyu Choi CEO/President NeoQuest Communications, Inc. http://www.zoper.net http://www.neoboard.net ---------------------------------------------------------------

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With what tools is the Zope book made?
by Oliver Marx 22 Apr '03

22 Apr '03

The Zope book is very wiki like... But how was it made? CMF+ZWIKI? \Oliver -- Direktør / Managing Director Oliver Marx TEKK Lyngbyvej 20 DK-2100 København Ø Main: +45 39 15 80 60 Direct: +45 39 15 80 62 http://www.tekk.dk

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Re: [Zope] Newbie - passing a list to an External Method
by Ashley Lloyd 22 Apr '03

22 Apr '03

Thanks once again for all of your advice - and sorry for tying up so much of your time. It is very much appreciated. Having just arrived home from work, I don't have code that I could paste, and I am not entirely certain what you mean, so I'll try to explain the best I can. In dtml the dtml method calling the external method function, it is called with the 2 parameters I listed in the dtml-let previously. In the function definition in the actual python module (in the Extensions folder), the self parameter is now the first parameter listed, so: def run(self, fileID, lines) # if I remember rightly After changing this, I just clicked save changes in the ZMI screen for the External Method I don't know of anywhere else I should have defined the parameters, so hopefully that is about it. Regarding the advice on function names, thank you for that. Of course it makes perfect sense, and should be obvious to anyone with some sense! Thanks yet again Ashley From: Dylan Reinhardt <zope(a)dylanreinhardt.com> Reply-To: zope(a)dylanreinhardt.com To: Ashley Lloyd <ashleylloyd(a)hotmail.com> CC: zope(a)zope.org Subject: Re: [Zope] Newbie - passing a list to an External Method Date: 22 Apr 2003 09:12:46 -0700 On Tue, 2003-04-22 at 08:31, Ashley Lloyd wrote: > Thanks again for your help Dylan. > > If I set the External Method parameters to (self, fileID, Lines) Are you adding "self" to the parameter list of the external method object in Zope? You shouldn't be. Just make it the first parameter in the external method _code_. Don't change the external method object or the DTML code that calls it. Let's see where that gets us... Dylan PS - On a tangent, it's a really good idea to get in the habit of giving your functions specific, descriptive names (like "create_pdf()") rather than naming them after a module they import or using common terms like "run()" (a name which is used elsewhere in the language). This makes troubleshoot easier and reduces the odds that you'll accidentally encounter a namespace collision. _________________________________________________________________ Express yourself with cool emoticons http://www.msn.co.uk/messenger

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Re: [Zope] Newbie - passing a list to an External Method
by Ashley Lloyd 22 Apr '03

22 Apr '03

>Perhaps it would be best to take this up again tomorrow when you can > do >additional testing. Ok, thanks, I'll just answer this one question, and leave you alone .. >>After changing this, I just clicked save changes in the ZMI screen >> for >>the External Method >Why? Did anything change? Nothing should have changed here. I thought I needed to do this to "refresh" the method as an object in Zope. I better explain what I mean .. after saving the python file in Externsions, I thought that the external method object in Zope (ie. sping2 .. or whatever I called it) needed to be refreshed to look again at the contents of the "run()" function, I guess I'm wrong. Thanks once again for all of your help, and to Tom for his input. Cheers Ashley _________________________________________________________________ Express yourself with cool emoticons http://www.msn.co.uk/messenger

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