January 2003 - Zope - Zope lists

Solution for 'in requires character as left operand' error
by Jon Whitener 07 Jan '03

07 Jan '03

[SECOND ATTEMPT] (It took me a while to figure this out, so I submit it to the list for future Googlers. This was experienced on Zope 2.6.) If you are getting an error in Zope that looks like this: 'in ' requires character as left operand ...then perhaps your problem is like mine. The error occurred after I would add an object (using a Zope Product 'addForm') in which I would select only one single choice from a 'multiple field'. If I later tried to access the object's properties via its Properties view method 'propertysheets/myProps/manage', I would get the above error. (In my case, the multiple field appeared on my home-made addForm as a number of check boxes. Each checkbox represented an item from those in a multiple selection property created for my Product's Zclass.) When only a single item was selected in the multiple field, it was converted into a Python STRING, e.g. 'Music' when what I really wanted was a "singleton" Python LIST, e.g. ['Music'] Figuring this out was the hard part. Fixing it was easy: Zope provides a simple 'argument conversion' facility. Adding ':list' to the addForm HTML form ensures that the multiple field value(s) will always be treated as a Python list, even if the multiple field only had a single value. To illustrate the fix (similar to the one I made in my 'addForm' HTML), assume the line with the problem property was: <input type="checkbox" name="choices" value="choice_one" /> Change it to the following, which - via ':list' - ensures the Zope argument conversion of 'choices' so that it is always a list: <input type="checkbox" name="choices:list" value="choice_one" /> For more information on such Zope argument conversion, see: http://www.zope.org/Documentation/Books/ZDG/current/ObjectPublishing.stx/ Good luck! Jon Whitener Detroit, Michigan USA

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formulator(newbie)
by Krause, Lewis 07 Jan '03

07 Jan '03

I made a nice formulator page. What are the steps of getting the data into a db. I finally got postgresql hooked up. Do I need like a dtml document to call an zsql document ect. The page looks so nice but I am having trouble following the Logic involved with what happens to the data that gets entered. Any help or even references to read will be greatly appreciated. Thanks Lewie

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Zope, MySQL, and Windows2000
by yuba＠cyberback.com 07 Jan '03

07 Jan '03

Can any of you help me to install MySQL so that I can use it with Zope on Windows 2000? I see that it *can* be done (and switching to Linux is *not* an option right now), but cannot find instructions on how to put everything together. Thanks! --greg

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Rewrite trickery with virtual hosts and RewriteRule
by Felix Ulrich-Oltean 07 Jan '03

07 Jan '03

Hi I've seen that with Virtual Host Monster you can prefix any path element with _vh_ to stuff it into the url. I'd like to insert this prefix to a set of path elements in Apache RewriteRules, e.g. /Clients/SomeCo/zope_/sites/some_co/manage should be rewritten to blah/VirtualHostRoot/_vh_Clients/_vh_SomeCo/_vh_zope_/some_co/manage I'm a bit stuck with the RE syntax though - any help appreciated. TIA, Felix.

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How to populate a ListField on Formulator with data coming from a DB?
by Vitor Varalonga 07 Jan '03

07 Jan '03

Hi! I'm using Formulator to build my forms but a "little" obstacle came to surface. Imagine that I have defined several listField elements. As long as fill them in directly through Zope management, no prob, but what if I want each one of those listField elements to be populated with the data resulting from sql methods. How can I do this? Thanks in advance, Vitor Varalonga vpedrosa(a)ciberbit.pt

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Suggestion
by Bjørge Solli 07 Jan '03

07 Jan '03

A suggestion for improvement of 'find': Search for broken files. I found that many of my ZPoPy DBConnections were broken when I exported and imported a folder from an old version of zope to the new one. cheers Bjorge -- http://www.ii.uib.no/~bjorge/smile/Smiles -- Bjørge Solli - Universitas Bergensis, Norway mailto:Bjorge@Kvarteret.no icq#29210281 MSN:bobelloco@hotmail.com Møllendalsv.19, 5009 Bergen, Norway tel:+47 55202853/91614343

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Re: [Zope] RE: External Editor/SSL
by Paul Browning 07 Jan '03

07 Jan '03

Dusting off an old thread .... --On 12 August 2002 15:01 -0400 Casey Duncan <casey(a)zope.com> wrote: > Ok then, > > What OS is the Zope (or more specifically Apache/IIS/Whatever) server > running on and what version of openSSL or (insert your sll lib here) is > it running? I just tried the latest and greatest External Editor (V0.6) under Win XP but couldn't get it to work over SSL with the files (libeay32.dll, ssleay32.dll, _socket.pyd) provided by the installer. However, if I instead used the files in <http://pypgsql.sourceforge.net/misc/python22-win32-ssl.zip> then all is well. I don't have much of an understanding of what is happening under the bonnet here and so can only offer this as a bit of empirical evidence. > > This is actually the Python SSL library complaining about the server not > following the protocol correctly. This is a know issue on Solaris, and > possibly other OSes given the specific openssl versions (and IIS too). I was using it against a Linux box running RedHat 7.3. Our production boxes run Solaris - is this still known to be an issue? TIA 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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(newbie) External Method continues to run.
by working4aliving 07 Jan '03

07 Jan '03

Hello group, I'm validating the resolution of url's supplied by customers through the following... (testing w/ 7000 records right now) my DTML method calls a python script that calls a zsql method. It then passes the result (row by row) to a hacked version of webclient.py, and my result gets passed back (1 or 0). I list the results (failures) in a resulting method. If I cancel the request (via the stop button on the browser) my logging shows the external method contining to run. Realizing that it's server side, it's not necessarily wrong, but if anyone can give me an explaination on why (or more like how to stop it), that'd be great. Thanks for your help in advance. Bob

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Strip-o-Gram 1.4 Released!
by Chris Withers 07 Jan '03

07 Jan '03

Strip-o-Gram is an HTML Conversion Library that can convert HTML to Plain Text and strip specified tags and Javascript from HTML. See http://www.zope.org/Members/chrisw/StripOGram for more details. This release enables Strip-O-Gram to work as a Zope Product as well as a Python Package. cheers, Chris

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Re: [Zope] PropertyFolder and PropertyObject in Zope 2.5.1
by Maik Jablonski 07 Jan '03

07 Jan '03

Andreas Jung wrote: > --On Dienstag, 7. Januar 2003 09:46 +0200 Heimo Laukkanen > <huima(a)fountainpark.org> wrote: > >> Hi all, >> >> I just developed an application on a Zope 2.6 machine with PropertyObject >> and PropertyFolders - and exported it to 2.5.1 machine. I noticed that >> strangely enough on 2.5.1 PropertyObject's behaviour changed. > > > Developing under 2.6 and backporting to an older version is in general > *a bad idea*. > > -aj Hi, PropertyObject works with Zope2.5.1, PropertyFolder does not, because it needs some functionality (__browser_default__) which was introduced in Zope 2.6. A simple workaround: please insert into PropeertyFolder.py a line like: index_html = __call__ Then things will work with Zope2.5.1, but you can't add "index_html"'s to your PropertyFolders anymore. But maybe you don't need this...;) Cheers, Maik

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