Hi there,
I used to pass a parameter in a WMS request in order to specify which country
should be highlighted. The MAPFILE would read that and, via an EXPRESSION, set
all country but the selected one to a bit of opacity:
DATA "the_geom FROM (SELECT xxx FROM capitals WHERE capitals.id_country
<> %id_country%) AS foo USING UNIQUE gid USING srid=4326"
That doesn't work anymore after upgrading our machine. So, I am not 100% sure
if this comes from mapserver, or if there is anything else involved. But it
seems more like a mapserver problem, as the error-message is
<ServiceException>
msDrawMap(): Image handling error. Failed to draw layer named
'capitals_selected'.
msPostGISLayerWhichShapes(): Query error. Error executing query: ERROR: syntax
error at or near "%"
LINE 1: ...als.gid FROM capitals WHERE capitals.id_country = %id_countr...
^
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
</ServiceException>
Thanks for any hints/clarification.
Stefan
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