[OpenLayers-Users] WMS getfeatureinfo filtering

[Julien Cigar]

Hello,

I'm using Mapserver with the following PostGIS layer: 
http://pastie.org/5441655

To give an example, here is what my data looks like:

site_id site_name occurence_id occurence_name

10 sitea 123 occurenceA
10 sitea 456 occurenceB
10 sitea 789 occurenceC
10 sitea 101 occurenceD

(an occurence is linked to a site, so in this case 4 occurrences are 
linked to "sitea".)

When I click on a point on the map I would like to display all (and 
only) the sites name. I use a WMS getfeatureinfo for this. The problem 
is that I need to group data coming from the getfeatureinfo by site, 
otherwise the same site is displayed multiple times.

I wondered if there is an easy way to do that in OpenLayers, other than 
returning GML, parsing it and build the DOM by hand .. .?

Thank you,
Julien



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