[Mapserver-users] Use of qstring in CGI itemquerymap

[Martin, Daniel A]

Some more background.  I'm using the Windows 4.0 binaries from the UMN site.

The qlayer is a MapInfo TAB file through OGR.

Under 3.6, I used this:
FILTER /^%value%/
on the Layer object.

How do I accomplish the query in qstring?  I must be missing something simple, because I'm getting back the error:
msQueryByPoint(): Search returned no results. No matching record(s) found. 

As for the documentation, it merely tells a Windows user like myself to search "man 7 regex".  I've read "man 7 regex" a dozen times.  I've read every regex tutorial I could find on the web.  I consider myself a somewhat intelligent person, and I still had to solve this the first time in MS 3.6 through pure trial and error.  Maybe I'm just a dumb Windows user after all, but I really feel the regex documentation on the web is sad.  That's not the MapServer documentation's fault, but still a real problem for me.

Thanks,
Dan

> -----Original Message-----
> From: Steve Lime [mailto:steve.lime at dnr.state.mn.us]
> Sent: Friday, October 24, 2003 4:10 PM
> To: Martin, Daniel A; mapserver-users at lists.gis.umn.edu
> Subject: Re: [Mapserver-users] Use of qstring in CGI itemquerymap
> 
> 
> Hi Dan: MapServer experssions are documented in the mapfile guide. It
> should be noted that item queries are structured so that you can take
> advantage of the underlying RDBMS if one exists. So in reality qstring
> is identical in syntax to a layer FILTER. Let us know what 
> the old item
> query did and we can help translate to the way things work in 4.0.
> 
> Steve
> 
> >>> "Martin, Daniel A" <Daniel.A.Martin at erac.com> 10/24/2003 12:08:05
> PM >>>
> I've found plenty of documentation about the new CGI attribute query
> techniques in MS 4.0, using qstring.  But all this documentation says
> "Query string passed to the query function," or "a valid MapServer
> expression, string comparison, regular or logical".
> 
> But I can't find any good documentation on what I need to do to get my
> itemquerymap working in 4.0 (was working in 3.6).  I can't 
> seem to find
> any helpful documentation on MapServer expressions.  
> 
> Any help is appreciated,
> Dan Martin
> 
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