Dear all, I am not able to use WFS filter in Mapserver Mapfile against the Geoserver WFS, apparently as Mapserver produces invalid XML as the final filter that goes to the request.
In Mapfile, I say
LAYER
METADATA
"wfs_filter" '<ogc:PropertyIsEqualTo
xmlns:ogc="http://www.opengis.net/ogc";><ogc:PropertyName>STUPEN</ogc:PropertyName><ogc:Literal>3</ogc:Literal></ogc:PropertyIsEqualTo>'
(the whole Mapfile is attached)
The request that leaves Mapserver towards the Geoserver WFS looks like this:
http://88.81.191.230:8080/geoserver/ows?&REQUEST=GetFeature&VERSION=1.0.0&SERVICE=WFS&TYPENAME=ccss:Flood2010_FloodActivityGrade&FILTER=<ogc:Filter><ogc:PropertyIsEqualTo+xmlns:ogc="http://www.opengis.net/ogc";><ogc:PropertyName>STUPEN</ogc:PropertyName><ogc:Literal>3</ogc:Literal></ogc:PropertyIsEqualTo></ogc:Filter>
Please note the <ogc:Filter> filter tag - with namespace used, but not
defined. This is an issue, as it is not valid and Geoserver replies
with an exception.
Changing manually the filter tag either to <Filter> or
<ogc:Filter+xmlns:ogc="http://www.opengis.net/ogc";> makes the whole
thing work. Unfortunately, the Mapserver documentation [1] says, that
"The filter given as a value of the wfs_filter metadata should not
contain <Filter> start and end tags."
So whatever I provide as the "wfs_filter" value, is later broken by
<ogc:Filter> tag.
Do you consider it a bug? Or is there any way how to make Mapserver to
create the filter as valid XML? Or let me include the <Filter> tag in
the "wfs_filter"?
Thank you for your advice,
Michal
Note: Mapserver itself wouldn't mind such a behaviour and would accept
such a request, e.g. this one:
http://bnhelp.cz/cgi-bin/crwfs/cgi-bin/crwfs?&REQUEST=GetFeature&VERSION=1.0.0&SERVICE=WFS&TYPENAME=okresy&FILTER=<ogc:Filter><ogc:PropertyIsLessThan+xmlns:ogc="http://www.opengis.net/ogc";><ogc:PropertyName>KODOK</ogc:PropertyName><ogc:Literal>3555</ogc:Literal></ogc:PropertyIsLessThan></ogc:Filter>
But Geoserver is not that tolerant...
[1] http://mapserver.org/ogc/filter_encoding.html
mapfile.fes
Description: Binary data
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