[mapguide-users] Programmatic Layer Manipulations with Filters and Postgres / Postgis

[James Card]

On Fri, 08 Jun 2007 08:32:03 -0700, nicholda <nicholda at talgov.com> wrote:

> I am pulling my hair out trying to manipulate a filter to create a new  
> layer on the fly using Enterprise MapGuide on top of PostGIS/Postgres.
>
> I feel pretty good about my layer .xml definition; if I leave the filter  
> component out completely my new layer shows every point or line on the  
> layer I am trying to discirminate against; so I'm pointing to the right  
> place. However, no matter what combination of text I try to add when  
> manipulating the filter text using DOM I always get a blank layer.  No  
> filter; every point.  Any other filter, no points.

We're modifying the filter on several layers with no problem using an SDF  
datasource. I suspect there is something specific about the filter syntax  
for PostGIS that's causing your problem. Can you define the filter  
successfully using the dialogs inside MapGuide Studio?

-- 
James Card
209-578-5580