October 2000 - Zope - Zope lists

__len__ Errors
by Scott Burton 17 Oct '00

17 Oct '00

I seem to be getting __len__ errors: Error type: exceptions.AttributeError Error value: __len__ When accessing any method with an <dtml-in > loop. I am running 2.1.6, with the current hot fixes. It seems to have started after installing the hot fixes. I can replicate it with a simple <dtml-in> loop in a method. I read somewhere about the hotfix changing objects ownerships. Could this be causing this? If so, how do I remove a hotfix? It has rendered my discussion groups useless. TIA Scott

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Message exchange between distributed python code
by Alexander Limi 17 Oct '00

17 Oct '00

Gents, I am currently writing some software in python that is spread over several different computers. These small programs should be able to communicate with each other and send messages that contain instructions between themselves. I am wrapping this up in Zope for the time being (therefore the post to this list :), but in essence this is not directly Zope related as much as a Python decision. One of my prerequisites is that the messaging should be as portable as possible. The message format will likely end up being XML-based, but what I want to know is what kind of message exchange methods are there that are portable and easy to move to another programming language if need be? You see, I am prototyping this thing in python, but some parts may be rewritten in C later on. All POSIX features will be available, so maybe I can use some of that? The suggestions I've gotten so far is: -SMTP (use SMTP to transfer a mail to the other machine containing the message, handle the mail with procmail and write it to a file that the other program can read) -XML-RPC (is this lightweight enough? and is it easy to handle, and does it take care of the transport of the message too? What about C clients/servers?) I think what I want is maybe something like Java's RMI, but it should work with both Python and C. Being able to send messages between programs without too much hassle or overhead while still remaining portable is my goal. Any advice appreciated. And please CC me, as I'm not on the list at the moment. -- Alexander Limi alexander(a)limi.net

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Stored Procedures
by Alejandro Pancani 17 Oct '00

17 Oct '00

Hi I´m using Zope with an Informix Database conected with ZODBC Product and I need some information about how to call a STORED PROCEDURE I´m trying to call a STORED PROCEDURE that executes a simple query. I do it using a ZSQL method, but when i try to test it, i receive the error message "empty column name". Does anybody have any information about that problem?

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Re: Réf . : Re: [ Zope ] dtml-in
by Chris Withers 17 Oct '00

17 Oct '00

(keep copying to the list so other people can jump in and help) dsergent(a)imexpert.com wrote: > > thks a lot for your answer. It works, but I've a lot of dtml documents in > my folder, and it's tooooooooooooooooooo slow with the sequence-item tag > (less than one seconde with <dtml-var id>, and more than 10 secondes, with > <dtml-var sequence-item>. Do you know any explaination about that ??? Of course ;-) <dtml-var id> is rendering a single string. <dtml-var sequence-item> goes through and renders each whole document, which takes a lot longer... cheers, Chris

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ZSQL question
by George Osvald 17 Oct '00

17 Oct '00

I have a table with lots of data in my Gadfly database. I would like to add a couple of new columns to that table. Is it at all possible to add columns to existing table or do I have to create a new table all together? Regards, George

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urgent
by jacintha menezes 17 Oct '00

17 Oct '00

hi, i am using zope(2.2.1) for sending mails, but it is not possible to send attachment. kindly let me know the reason have made use of mime to send attachment. thanks, jacintha

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dtml-in
by dsergent＠imexpert.com 17 Oct '00

17 Oct '00

Hi ! I want to execute all the dtml documents contain in a folder. I use the dtml-in tag <dtml-in "Applications.objectValues('DTML Document')"> <dtml-var id> </dtml-in> But I was only able to print the name of the dtml document, how can I execute the script write in the dtml document ? thks a lot for your answer. david

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how to include Flash/SWF objects in Zope website?
by Fred Yankowski 17 Oct '00

17 Oct '00

I want to include some Flash/SWF objects in a Zope website, but I don't see any built-in way to do this or any Product that would help. Any suggestions? If all else fails, I'm thinking about creating a simple product for this, modeled on ImageFile.py. -- Fred Yankowski fred(a)OntoSys.com tel: +1.630.879.1312 Principal Consultant www.OntoSys.com fax: +1.630.879.1370 OntoSys, Inc 38W242 Deerpath Rd, Batavia, IL 60510, USA

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Searching through the contents of Pdf/Word/latex
by Praveen Katiyar 17 Oct '00

17 Oct '00

Hi all, I am a zope newbie and currently am using the Portal ToolKit and the external file to build a website. I am facing problem in searching the contents of the external file that i upload [ msword/pdf/latex/... ]. The Zcatalog search does not seem to search and index the contents of pdf/doc/latex files. I have looked into HowTo's and the documentation. But being a zope newbie I am finding it difficult to find a way out. I guess that somewhere while making the catalog one has to use converters(pdftotext....and its like) and probably then use that to index those documents. Has anyone done this before. Regards, Praveen Katiyar

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Away Message (Apologies)
by Darin Lee 17 Oct '00

17 Oct '00

Zopistas, I apologize for the "Away" messages that have been popping up on the list. I needed to add a "zope.org" to my auto-response ruleset. Unfortunately, I was away - and didn't realize this was happening. :-| Sorry for all the noise, -Darin Lee Analyst / Web Administrator Department of Environmental Quality Office of Automation Coordination Phone: (517) 241-5214 Fax: (517) 241-8379

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