At 11:22 08/09/99 , TFE MMS JARVIS JOHN wrote:

Hi all, I'm trying to construct a search interface which allows users to build a set of search conditions against a large DB view. One of the requirements for this is that the users be able to choose between AND and OR operators for each condition.

Something like (silly example...): Country = Japan and Area = Tokyo or Area = Kyushu

These conditions are converted to a where statement using DTML. The problem is that Zope (still 1.10.3 :^(

Switch now, before it is too late! =)

complains about unexpected <!--#and--> and <!--#or--> tags within <!--#if--> blocks.

For example: <!--#sqlgroup where--> ... generated conditions ... <!--#if "LogOp=='AND'"--> <!--#and--> <!--#else--> <!--#or--> <!--#/if--> ... Another condition ... <!--#/sqlgroup--> doesn't work.

I guess the Zope internals weren't meant to handle this construct. Has anyone been here before? Any ideas? Any suggestions would be greatly appreciated.

Hmm.. this indeed does not work at all, because that's not the way DTML works. What you could do is this: <!--#sqlgroup where--> ... generated conditions ... <!--#and--> <!--#if "LogOp=='AND'"--> ... Another condition ... <!--#/if--> <!--#or--> <!--#if "LogOp=='OR'"--> ... Another condition ... <!--#/if--> <!--#/sqlgroup--> Now, if your LogOp equals 'AND', then the 'and' block will actually be used, because it contains output, but the 'or' block will not be used, because it remains empty. And, of course, when LogOp equals 'OR', it will be the other way around. So, with LogOp == 'AND' you'll get: where ...generated conditions... and ...Another condition.. and with LogOp == 'OR' you'll get: where ...generated conditions... or ...Another condition.. which is what I think you want.. -- Martijn Pieters, Web Developer | Antraciet http://www.antraciet.nl | Tel: +31-35-7502100 Fax: +31-35-7502111 | mailto:mj@antraciet.nl http://www.antraciet.nl/~mj | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 ------------------------------------------