[mapserver-users] Default Values in Runtime Substitution Error

[Stefanos Anastasiou]

Hi all.   I'm trying to perform a runtime substitution in MapServer. My mapfile snippet is the following: 
 VALIDATION             "val_1" "^[0-9]+(\.[0-9]+)?$"                  "val_2" "^[0-9]+(\.[0-9]+)?$"            "val_3" "^[0-9]+(\.[0-9]+)?$"            "val_4" "^[0-9]+(\.[0-9]+)?$"       END       METADATA              #various WMS parameters        END        TYPE line        STATUS on        CONNECTIONTYPE POSTGIS        CONNECTION 'host=localhost port=5432 user=stefanos password=myPassword dbname=dbName'                DATA "geom FROM (SELECT * FROM stored_function(%val_1%, %val_2%, %val_3%, %val_4%)) AS foo USING UNIQUE seq USING srid=2100"

If I pass the parameters in my url, everything works well. The problem occurs when I don't pass any parameter. The MS_ERROFILE gives me the following error:
Error (ERROR:  syntax error at or near "%"LINE 1: ...'hex') as geom,"seq" from (SELECT * FROM _a_route(%val_1%, %val_2%...                                                                                                           ^
It's necessary not to pass default values like  "default_val_1" "some_value"    because of a weird setup of my stored function.

Is there any way to fix this ? 
Thanks a lot...!!
-Stefanos

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/mapserver-users/attachments/20170314/b4b43ff6/attachment.html>