[mapserver-users] Passing an additional parameter via URL for WMS request - doesn't work anymore with new mapserver?

[Till Adams]

Stefan,

this is a working example from a layer:

METADATA
  [...]
   'LEVEL_validation_pattern' '1|1,2|1,2,3|1,2,3,4|1,2,3,4,5'
   'default_LEVEL' '1,2'
  [...]

This sets the Keyword LEVEL which is added to your URL to the
Default-Value "1,2" and allows the values defined in the validation
pattern "LEVEL_validation_pattern"

Regards, Till

On 21.08.2012 16:41, Stefan Schwarzer wrote:
> Thanks so much for the quick responses!
> 
> If I understand it correctly, I need to specify "DATAPATTERN" in the MAP part, in order to use the parameter in the DATA request:
> 
> 	Doc is saying: LAYER: DATA (must validate against DATAPATTERN)
> 
> 
> which would look like this:
> 
> 	SHAPEPATH '/www/xxx/data' 
> 	FONTSET '/www/xxx/htdocs/mod_map/etc/fonts.txt' 
> 	SYMBOLSET '/www/xxx/htdocs/mod_map/etc/symbols.sym' 
> 	DATAPATTERN '^[0-9]'
> 
> 
> with the DATA request like:
> 
> 	DATA "the_geom FROM (SELECT xxx FROM capitals WHERE capitals.id_country <> %id_country%) AS foo USING UNIQUE gid USING srid=4326"
> 
> 
> Hmmm…. But that doesn't work.
> 
> msDrawMap(): Image handling error. Failed to draw layer named 'capitals_mask'.
> msPostGISLayerWhichShapes(): Query error. Error executing query: ERROR:  syntax error at or near ")"
> LINE 1: ...capitals WHERE capitals.id_country <> %id_country%) AS foo w…
> 
> 
> Can you shed some light on it? I am not really familiar with the regular expressions. I am just passing an integer.
> 
> Thanks for any hints!
> 
> Stef
> 
> 
> 
> 
> On Aug 21, 2012, at 4:10 PM, Till Adams wrote:
> 
>> Stefan,
>>
>> from mapserver 6 on you must define the default values for the
>> parameters in your metadata-tag and also provide a validation-pattern.
>>
>> You'll find more here:
>> http://mapserver.org/cgi/runsub.html
>>
>> Regards, Till
>>
>>
>>
>> On 21.08.2012 16:07, Stefan Schwarzer wrote:
>>> 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
>>> _______________________________________________
>>> mapserver-users mailing list
>>> mapserver-users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>
>>
>> -- 
>>
>> NEWS:
>> -> GO Mobile - jetzt WebGIS auch auf Smartphones
>> -> Bald OpenSource! SHOGun - das JavaBackend für WebGIS Anwendungen
>>
>>
>> ----------------------------------------------------
>> terrestris GmbH & Co. KG
>> Puetzchens Chaussee 56
>> 53227 Bonn
>> Germany
>>
>> Till Adams
>> Geschaeftsfuehrung
>>
>> Tel:	+49 (0)228 / 962 899-52
>> Mobile:	+49 (0)151 / 25394429
>> Fax:	+49 (0)228 / 962 899-57
>>
>> adams at terrestris.de
>> http://www.terrestris.de
>> Amtsgericht Bonn, HRA 6835
>> ----------------------------------------------------
>>
>> Komplementaerin:
>>
>> terrestris Verwaltungs GmbH
>>
>> vertreten durch:
>> Hinrich Paulsen, Till Adams
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>

-- 

NEWS:
-> GO Mobile - jetzt WebGIS auch auf Smartphones
-> Bald OpenSource! SHOGun - das JavaBackend für WebGIS Anwendungen


----------------------------------------------------
terrestris GmbH & Co. KG
Puetzchens Chaussee 56
53227 Bonn
Germany

Till Adams
Geschaeftsfuehrung

Tel:	+49 (0)228 / 962 899-52
Mobile:	+49 (0)151 / 25394429
Fax:	+49 (0)228 / 962 899-57

adams at terrestris.de
http://www.terrestris.de
Amtsgericht Bonn, HRA 6835
----------------------------------------------------

Komplementaerin:

terrestris Verwaltungs GmbH

vertreten durch:
Hinrich Paulsen, Till Adams