First, Jaroslav is right. One time you're passing a string and next your passing a list. Make your choice how the API should looks like.
Second..it would be *really* helpful to see the full traceback instead of just *Keyerror*. It's somewhat boring to ask every time for it :-) -aj --On 16. Juni 2007 15:19:10 -0400 Ken Winter <[EMAIL PROTECTED]> wrote:
Jaroslav ~ I'm pretty sure that 'delete_this' is a list (of integers), because the lines " p = context.REQUEST.get('delete_this') s = ', '.join([str(x) for x in p]) " process it correctly into the string 's'. In other words, I think it is the same as if p had been assigned a list in this way: " p = [9765, 10058, 11333] s = ', '.join([str(x) for x in p]) " In either case, s ends up as the string "9765, 10058, 11333". That's what gets passed to the ZSQL method (below), and that's where the trouble seems to be. I will put in another message to this thread documenting some further experiments I have done. ~ Thanks ~ Ken-----Original Message----- From: Jaroslav Lukesh [mailto:[EMAIL PROTECTED] Sent: Saturday, June 16, 2007 1:41 AM To: Ken Winter; 'Zope-DB List' Subject: Re: [Zope-DB] Using <dtml-var>s in ZSQL methods? It is just because 'delete_this' is a string, not the list, or vice versa? ----- Original Message ----- From: "Ken Winter" <[EMAIL PROTECTED]> To: "'Zope-DB List'" <[email protected]> Sent: Saturday, June 16, 2007 5:15 AM Subject: [Zope-DB] Using <dtml-var>s in ZSQL methods? Here's the definition of a ZSQL method, "people_delete_by_id.zsql": " <dtml-comment> title: Method to delete People by ids given in a comma-separated list connection_id: my_database arguments: id_list </dtml-comment> delete from person where person_id in (<dtml-var id_list>) " Here's the puzzle: When I define and test this ZSQL method through the ZMI, passing it a string such as "9765, 10058, 11333", it indeed deletes the rows with those values on person_id. BUT when I invoke the same ZSQL method from a Python script with the following code: " p = context.REQUEST.get('delete_this') if p: s = ', '.join([str(x) for x in p]) context.people_delete_by_id(id_list=s) " ...and with a REQUEST variable 'delete_this' that comes from this snippet of a form in a page template: " <form method="post" name="form2" tal:attributes="action string:${here/absolute_url}/${template/id};"> <input type="hidden" name="form.submitted" value="1" /> <p class="error_message" tal:define="err errors/n|nothing" tal:condition="err"><b tal:content="err" /></p> <table> <tr tal:repeat="person options/data"><a name="id" id="id" tal:attributes="name person/person_id"></a> <td tal:condition="not:options/selectall | nothing" <input type="checkbox" name="delete_this:list:int" value="" tal:attributes="value person/person_id"/> </td> ... </tr> </table> ... </form> " ...and with the same three person_ids (9765, 10058, 11333) the 4th line of the Python script evokes an error: " KeyError: 'id_list' " The core idea is that the string id_list is passed into the ZSQL method, where it is spliced into the "delete...where" clause via the <dtml-var id_list>) to provide the list of person_ids to delete. Here's the question: WHY? ~ TIA ~ Ken P.S. I know that <dtml-var...> rather than <dtml-sqlvar...> is an unorthodox and apparently undocumented construct to use within a ZSQL definition. But I need it because <dtml-sqlvar...> malformats the string. And if doing this trick is a no-no, how come it works in the ZMI test but not when called from Python? More importantly, how can I get it to work from Python? _______________________________________________ Zope-DB mailing list [email protected] http://mail.zope.org/mailman/listinfo/zope-db_______________________________________________ Zope-DB mailing list [email protected] http://mail.zope.org/mailman/listinfo/zope-db
-- ZOPYX Ltd. & Co. KG - Charlottenstr. 37/1 - 72070 Tübingen - Germany Web: www.zopyx.com - Email: [EMAIL PROTECTED] - Phone +49 - 7071 - 793376 Registergericht: Amtsgericht Stuttgart, Handelsregister A 381535 Geschäftsführer/Gesellschafter: ZOPYX Limited, Birmingham, UK ------------------------------------------------------------------------ E-Publishing, Python, Zope & Plone development, Consulting
pgpX6f3WaiFKL.pgp
Description: PGP signature
_______________________________________________ Zope-DB mailing list [email protected] http://mail.zope.org/mailman/listinfo/zope-db
