WFS and filter

[Kralidis,Tom [Burlington]]

Have you tried passing these as run-time variable substitutions?  So, if you have a URL like:
 
http://host/mapserv?filter_id=123456
 
with your mapfile constructed as follows:
 
...
LAYER
 ...
 METADATA
  "wfs_filter"  "<PropertyIsEqualTo><PropertyName>id</PropertyName><Literal>%filter_id%</Literal></PropertyIsEqualTo>"
 ...
 END
...
END
 
I haven't tested this myself, but the docs at http://mapserver.gis.umn.edu/docs/reference/mapfile/variable_sub seem to suggest this would work.
 
Hope this helps.
 
..Tom
 

	-----Original Message----- 
	From: UMN MapServer Users List on behalf of Daniel Goetz 
	Sent: Mon 24-Jul-06 09:49 
	To: MAPSERVER-USERS at LISTS.UMN.EDU 
	Cc: 
	Subject: [UMN_MAPSERVER-USERS] WFS and filter
	
	

	Hi coummunity,
	
	I bulid up a little WFS-server using mapserver (local mapserver installation; ms4w 1.5.3; CGI). Then I tried to map it using mapserver (on another machine in the intranet) as WFS-client. Everything works fine.
	
	Now I want to map only a single feature. Therefor I used a filter-expression in the LAYER-METADATA. This works fine too. But my question is: Is it possible to filter single features dynamically? I mean: Is it possible to filter features by writing the filter-expression in the URL of my browser (Similar to a filter-expression in a WFS-conform GetFeature-Request)? Hope you could understand what I mean. I want the user to be able to filter certain features without editing the .map-file but via specifying the filter-expression in the URL.
	
	Thank you for your ideas and helpings.
	
	
	regards
	
	
	Daniel
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