May 2002 - Zope - Zope lists

DCOracle 2 and long text fields..How to use them?
by Chris Beaumont 03 May '02

03 May '02

Hello, Maybe someone here can help.. I had thought that DCOracle 2 (now) supported long text fields, but when I tried to insert more than 2k into one (after upgrading) I got a 'string literal too long' error from Oracle. Is there some trick to this or am I running into a DCO2 or Oracle limitation? I'm using Oracle 7 which (I think) is supposed to support up to 32k in long text fields.. I'd hate to have to continue working around this in the way I have, by using Oracle7's 2k(max) varchar2 columns and splitting text in Python on input/concatenating them together on output.. That is just ugly.. There must be a better way... Also, is there any way to use the LONG RAW datatype to store images? We are using Zope with Oracle as a CMS and need the long text capability for descriptions within web pages.. BTW...We are a nonprofit and can't afford the upgrade to Oracle 8/9.. etc. -Chris

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Re: [Zope] Quick Slide Show or Presentation on Zope
by Paul Browning 03 May '02

03 May '02

--On 03 May 2002 14:58 -0400 "Jorge O. Martinez" <jmartinez(a)eMediaMillWorks.com> wrote: > Hi: > > I found this useful to understand what zope is... hope it helps... > > http://www.bris.ac.uk/ISC/zope/zfest/zope/ Uh-oh. That's a bit dated. Slightly less dated (but still dated) is http://www.business.city.ac.uk/ero/150101.html though the HTML version seems to have gone walkabout. See also the Pro Zope Material at http://www.zope.org/Members/BwanaZulia/zope.html Paul -- The Library, Tyndall Avenue, Univ. of Bristol, Bristol, BS8 1TJ, UK E-mail: paul.browning(a)bristol.ac.uk URL: http://www.bris.ac.uk/

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Either I'm an Idiot or dtml-in is broken and/or poorly documented
by Dan Shafer 03 May '02

03 May '02

I know lots of you use <dtml-in> to iterate over stuff. So I assume it works. But I am absolutely bewildered. I cannot get the simplest example of this function to work. Here's my really difficult test, stored in a DTML document (opening angle brackets omitted): dtml-var standard_html_header> dtml-in objectValues> title: <dtml-var title_or_id><br> /dtml-in dtml-var standard_html_footer> Call me goofy but I sort of expect this to produce a list of the titles or IDs of all the objects in the folder in which the DTML Document is stored. It never produces any output whatsoever. I put in a dtml-else that prints a heading "Nothing Found" and that always prints. This is frustrating because as far as I can tell, I am following examples in all three of the Zope books I own to the letter, yet I cannot produce any output at all. Nothing. Nada. Zip. I actually *need* to be able to iterate over all the DTML Methods and DTML Documents in this folder, check a property's value, and based on that value include or exclude the documents and their URLs from a table or list. As you can see, for reasons I just don't understand, I'm very far from that goal. I've searched PQR, I've searched the online tips and HowTos. What in the world could I be doing wrong here? I *have* placed this document in a folder which contains other objects: DTML documents and methods, Python scripts, and other folders. I have also tried substituting objectItems for objectValues. No joy. I've tried enclosing objectValues and objectItems in quotation marks and calling them as expressions. I've tried making the argument to objectValues and objectItems a one-item list with a string value. I am now officially lost and desperate.

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Anybody working on docutils (ReStructuredText) stuff?
by jlagarde＠bigfoot.com 03 May '02

03 May '02

Howdy, I notice that the 0.1 version of docutils (http://docutils.sourceforge.net) has been recently released. Tried it, and it seems to do a pretty good job of rendering documents, even at this early version number. Anybody currently working on using this somewhere in Zope? I've been experimenting with backtalk recently, and although the backtalk part is great, the structured text part just does not do a good enough job for any serious document publishing IMO (see http://docutils.sourceforge.net/spec/rst/problems.html for a much better descriptions of the problems with STX than I could ever give). I had a look at the sources of backtalk and docutils (I was already somewhat familiar with the STX code), and the interfaces seem different enough that a replacement of STX with docutils in backtalk seems nontrivial (to me anyway). I guess that a simple docutilsDocument product should be relatively straightforward though. At this point I will probably still try to use the current version of backtalk to do what I want, but it requires a lot of work on the original docs to make them come out bearably OK looking. However, If someone reveals that they're working on that stuff and may have something out shortly, I might work on something else instead for a while in the hope of using a docutils version later on. BTW, thanks to Chris McDonough and other contributors for the current version of backtalk, and to Richard Jones for pointing me to ReStructuredText(now wrapped inside docutils), as I was working on improving structured text myself at the time, clearly a futile effort given the depth of thought that went into ReStructuredText. Cheers, Jean

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Two Cosmetic Issues
by Dan Shafer 03 May '02

03 May '02

I use Zope on both Mac and Win2K in the course of a day. In recent weeks, I have moved my Mac environment to OS X. I have noticed a couple of cosmetic issues that, while really cosmetic, do have an impact on the usability of the ZMI for me. First, on both Windows and Mac, the "Narrower" button seems to have zero effect. I click it many, many times because I think perhaps the incremental change built in is small. It never moves. Not a pixel. This is a problem because for some reason the width at which it is seton my Win2K box is such that I get horizontal scrolling in object editors that extend the width of the available area. This makes editing a real pain. On my Mac, for reasons having, I'm sure, to do with arcania like aspect ratios, I don't get horizontal scrolling but I still cannot make the window narrower. Second, on OS X, the default font used in the object editors is not well suited to the display parameters. All text entered into text objects is a bit hard to read and, when selected, is broken and thin. I have reset my system to turn off anti-aliasing below 12 points, to no effect. Anyone have any ideas how, e.g., I might fix these problems myself? Runniing Zope 2.3.3 on Linux.

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properties security ?
by Julián Muñoz 03 May '02

03 May '02

I would like to know howto limit the access to the properties of a folder. For example, now everybody can view them doing a xml-rpc query like (in python): >>> w=xmlrpclib.Server('http://www.my_server.com/') >>> w.propertyItems() Disabling "Access contents information" permission of the folder for anonymous solves this. But I haven't found any reference about this, and I don't know if this is correct. At a first glance, changing this permission is annoying, because many other objects acquire this property from there (the folder is the root folder of a project), and "nothing" works well .... Is there another permission ? (It doesn't seem...) Or is storing sensible datas in folder properties a really bad idea ? Thank you ! -- __o _ \<_ (_)/(_) Saludos de Julián EA4ACL -.-

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Microsoft Word, Excel and Powerpoint with CMF
by Sion Morris 03 May '02

03 May '02

Hi, On the BasicCMFUsage movie, on zope.com, it shows MSWord File, Excel and Powerpoint as content types. Is that functionality available to ordinary CMF users? Having this functionality would help my case for having Zope as a web intranet application here at work. The type of site I have in mind is a store for every day documents and communications. As most of these documents are created in MSWord, Excel and Powerpoint it would be nice if the CMF could index and display them. I have already tried NuxDocument but it failed to work on CMF1.2 (the author has been notified). Regards, Sion

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RE: [Zope] How to use a ZSQLMethod from a Python Script
by Igor Leturia 03 May '02

03 May '02

>Igor Leturia writes: > > I want to call a ZSQLMethod from a Python Script. In Zope.org, I > > couldn't find a specific how-to on the subject, but accidentally I found > > some other how-to's in which there are examples that use ZSQLMethods > > from Python scripts. It seemed very easy, so I tried it that way: > > > > res = context.mysqlmethod() > > > > It gives an error message, 'resource not found'. Both the >script and > > the sql method are in the same folder. What's going wrong? > > .... > > Dieter Maurer writes: > > >If it does not help, the precise error message (Error >Type, Error Value > > >and traceback) is necessary to help... > > > > > > > 'container' doesn't work either. As for the error type >and value, I > > don't know, this is the message I get: > > > > Site Error > > An error was encountered while publishing this resource. > > Resource not found > > Sorry, the requested resource does not exist. > > Check the URL and try again. > >Please run your Zope in debug mode (start it with "-D" option). > > It will give you better error messages and tracebacks. > This is the traceback when running in debug mode: Traceback (innermost last): File C:\Intranet\lib\python\ZPublisher\Publish.py, line 223, in publish_module File C:\Intranet\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\Intranet\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File C:\Intranet\lib\python\ZPublisher\Publish.py, line 173, in publish File C:\Intranet\lib\python\ZPublisher\HTTPResponse.py, line 308, in setBody File C:\Intranet\lib\python\ZPublisher\HTTPResponse.py, line 547, in notFoundError NotFound: (see above)

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Set _allowed_meta_types on folder instances without creating a new product?
by Jeff Kowalczyk 03 May '02

03 May '02

Is there a way to set the class attribute sometimes used in products class myProduct(...): _allowed_meta_types = ('Image','File') On a regular folder instance, without creating a plethora of specialized folder classes?

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zope hangs
by dman 03 May '02

03 May '02

I'm running zope 2.5.1 with python 2.1.3 on a good debian system. Sometimes, though, zope seems to just hang. It is still bound to the socket, and I can telnet to the socket (the kernel gives back the SYN-ACK), but I can't do anything else. Usually a restart of zope solves this, but right now I've restarted zope about a dozen times (and even waited for the kernel to finish closing the tcp connections) but I still can't get any connection from zope. The Z2.log shows nothing. The debug log file only shows the servers starting up and nothing after that. Where should I look for a solution? TIA, -D -- Windows, hmmm, does it come with a GUI interface that works or just pretty blue screens? GnuPG key : http://dman.ddts.net/~dman/public_key.gpg

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