March 2002 - Zope - Zope lists

Zope Treasures
by D.Turpie＠open.ac.uk 26 Mar '02

26 Mar '02

Does anyone know what has happened to the Zope Treasures website? http://www.zope-treasures.com/ It doesn't seem to be live anymore or at least I can't get in. I get the "Connection Failed" error and a message saying "The remote host or network may be down". I have had this error message coming up for a while now and just thought I would see if anyone else had the same problems and any idea if they are no longer operating this website. Thanks. David.

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Z SQL Bug wasted nearly my whole morning
by Ren Bing 26 Mar '02

26 Mar '02

Dear all: A bug in Z SQL method wasted my whole precious morning! Write the body of a Z SQL method as below, with only Arguments as 'client' insert into test values(client) now goto 'test', input something or not, everytime you get "Error, exceptions.TypeError: __call__() got multiple values for keyword argument 'client' " since the actual case I am debugging is more complex than this, I didn't reach the point at first. I tried my whole precious morning, trying this and that, examine here and there, feeling like jump our of window or smash my computer :-) (not so bad, in face :-) just because that I never expect that the problem exist at the NAME!!!!! at last, nearly tried every thing I can guess (am I too stupid? maybe), I replaced argument name "client" to "clientname" , then everything is fine. Woo, but WHY???? what's inside this? I didn't read this at anywhere. Is there still more like this ahead? May I be so bold to add some comment: when using Zope at first, I am shocked by how easy it is to use, just a few code can do great thing that you need to write several times of codes otherwise, like Java. But more and more, I found that I used several times debugging effort than Java. Perhaps because that I am just new to Zope. But I think the "Zope Book" is not explicit enough, for example, no where mentioned that when you call a DTML method from a python method, you need to pass its container folder or something as parameter, or your DTML method can never find the standard-header...... I spend several hour to find out.... I don't know whether it is my own problem or Zope's problem. But this time, the "client" and "clientname" killed me. I am considering seriously whether or not shall I turn back to Java in next project. Thanks very much. I am not mean to say bad word to Zope. Ren Bing

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alternating colors based on sequence-index of outer loop
by John Hunter 25 Mar '02

25 Mar '02

I have a folder called Sections that is filled with Section instances. Each Section contains a variable number of students, and I want all the students in a given section to have the same row color in my table, with sections alternating colors. I have nested dtml-in loops over the sections and students in each section, and want the rows of my table to alternate in batches depending on whether the outer loop is even or odd. Basically, I need to do a dtml-let in the outer loop that the inner loop will access, but am having trouble with the syntax. Here is some example dtml with pseudo code to set the default_color <dtml-in expr="Sections.objectValues('Section')" mapping> <dtml-if sequence-even> default_color="gray" <dtml-else> default_color="white" </dtml-if> <dtml-in expr="_['sequence-item'].objectValues('Student')" mapping> <tr default_color> ..Fill in the row.. </tr> </dtml-in> </dtml-in> Thanks for any help, John Hunter

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zope with internet explorer 6--can't narrow workspace
by Joshua Newman 25 Mar '02

25 Mar '02

When I try to edit some dtml for example in the zope management interface, I can't make the frame narrower so I can't see the scroll bar on the text frame. The 'Narrower' button (and the 'Wider' one for that matter) don't work. The 'Taller' and 'Shorter' ones do. Does anyone have an idea about this? Also I think I am having a caching problem as IE 6 remembers pages a little too tenaciously. Is there a way to assure that when I visit a page it will reload it? I've already tried the Temporary Internet file settings (check for new page each time). Could it be a cookie thing? I'm a newbie and not too sure. Thanks Joshua

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creating object in local dir from add form in product dir
by John Hunter 25 Mar '02

25 Mar '02

I am developing several ZClasses in a Products dir. I want managers to be able to instantiate some of the ZClasses from the /manage interface and users to be able to instantiate others from a non-manage URL. Users will access http://some.host:8080/path/to/MedBio305 where MedBio305 is an instance of my ZClass Course which has a Method index_html that allows users to view the folder. Within that index_html file, I have some links which point to the add form of a Project ZClass that I want users to be able to instantiate: <a href="/Control_Panel/Products/Course/Project_addForm>upload</a></td> My Project_addForm calls a python script add method. I want that script to instantiate a Project ZClass in /path/to/MedBio305/, but context.Project.createInObjectManager(pid,REQUEST) doesn't work because the /Control_Panel/Products/Course/ dir is the current context for this script. Can someone advise how to create the instance in the MedBio305 dir? I suspect the answer lies in using the BASEn, URLn, special variables of the REQUEST object, but don't know enough about the Zope API to work it out. Thanks, John Hunter

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[Help] Setting up MySQLconnection
by Richard Wesley 25 Mar '02

25 Mar '02

I am trying to set up a mySQL DB adapter in Zope. I am somewhat of a Zope and Linux newbie so I am probably doing something dumb. Here is what I have done: - Downloaded MySQL-python-0.9.0 to the Zope install dir; - tar -xzvf MySQL-python-0.9.0.tar.gz - cd MySQL-python-0.9.0 At this point I looked at the README. It requires Python 1.5.2 or higher (I think we have 2.2) and a recent MySQL (which I believe we have). I did not edit setup.py because we are running Red Hat. I then do - python setup.py build and it chugs along until it gets to the gcc _mysql.c when it gives me an error _mysql.c: In function `_mysql__fetch_row': _mysql.c: too many arguments to function `PyTuple_Resize' This looks to me like a call to the Python API and it appears that my libraries define this differently from what the code expects. Any help gratefully appreciated. - rmgw http://www.electricfish.com/hawkfish/ ---------------------------------------------------------------------------- Richard Wesley Electric Fish, Inc. hawkfish(a)electricfish.com "There's nothing intellectual about wandering around Italy in a big shirt, trying to get laid." - Rowan Atkinson, "Black Adder:Ink and Incapability"

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Catalog Awareness
by Geoff Armstrong 25 Mar '02

25 Mar '02

Hi, I have a need to modify a Zope product so that at least one of it's classes becomes catalog aware. All the documentation I can find on catalog awareness refers to building ZClasses and giving them this feature; but the product I need to modify is built with external python code that resides in the "Products" directory. I understand though that it is possible for a product to be built which is a hybrid of Python code and ZClasses. So perhaps it is possible? Right now I'm having to use a workaround that changes the properties of a dtml document each time I need to catalog a new item of the product class concerned. I then re-catalog the same dtml document with the new properties; but this is taking to much of a toll on performance. Can anyone advise me on this? Thanks geoff

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Attaching multiple file to mime
by Chris A. Bruce 25 Mar '02

25 Mar '02

I saw Dieter's bogus answer to attaching multiple files in mime method, but have no clue how that answers anything? http://groups.yahoo.com/group/zope/message/82157 Anyhow, has anybody got any working example of how to send all of the files in a folder as attachments using sendmail and mime? Thanks in advance, Chris

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ANNOUNCE: Zope training
by Brian Lloyd 25 Mar '02

25 Mar '02

*** ANNOUNCEMENT *** In response to significant demand, Zope Corporation has scheduled another presentation of our highly-rated Zope training for May 6th through May 9th, 2001 in Herndon, VA. Herndon, VA is is very close to Dulles International Airport. The course will cover the latest additions to Zope and the Zope Content Management Framework (CMF) including Zope Presentation Templates and Workflow. Jim Fulton (CTO, Zope Corporation) and Guido van Rossum (Director, PythonLabs) will speak at two luncheon sessions. Additional details about the training are available online at: http://www.zope.com/Services/Training If you have specific questions about training and to sign up for the course, please send email to training(a)zope.com or phone 540-361-1717.

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Download?
by Mercury Exposure 25 Mar '02

25 Mar '02

I have arrived at Download Zope-2.5.0-src.tgz Will this work on my mac? Thank you maz www.mercuryexposure.org Mercury education to protect generations.

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