[OpenLayers-Users] Pass parameters to mapfile

[S.Reena]

Hi,

I tried as :

var quakes = new OpenLayers.Layer.WMS( "custom",
"http://gis.rtbi-iitm.in/cgi-bin/mapserv?",
                        
{map:'/var/www/html/customisation/mapfile/tnroad.map',transparent:true},{isBaseLayer:false});
 map.addLayer(quakes);
 quakes.mergeNewParams({layers:'tnroad',userid:'2'});

But mergeNewParams is not taking any value other than defaults for map (like
in this case userid ). So %userid% is not replaced  in 

  DATA "the_geom from ( select * from customised_poly AS f where f.subcat_id
IN (select subcat_id from subcat_info where maincat_id =0) AND
user_id=%userid% )AS foo1 USING UNIQUE gid"


Thanks,
Reena.


Arnd Wippermann wrote:
> 
> Hi,
> 
> If you have declared the variable user_id before mergeNewParams, it should
> also work. 
> 
> Because it is a Mapserver question, try and manipulate the request in the
> browser and see what MapServer returns. If you get the response, you want,
> then it is possible to get it also with OpenLayers.
> 
> Arnd Wippermann 
> 
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
> Auftrag von S.Reena
> Gesendet: Samstag, 8. November 2008 14:05
> An: users at openlayers.org
> Betreff: Re: [OpenLayers-Users] Pass parameters to mapfile
> 
> 
> Hi,
> 
> One issue remains still ..
> 
> "http://gis.rtbi-iitm.in/cgi-bin/mapserv?map=/var/www/html/customisation/map
> file/customNR.map&userid=2"
> 
> is working ok with
> 
> DATA "the_geom from ( select * from customised_poly AS f where f.subcat_id
> IN (select subcat_id from subcat_info where maincat_id =0) AND
> user_id='%userid%' )AS foo1 USING UNIQUE gid"
> 
> but is I want to pass a dynamic value( a variable user_id) instead of a
> number ( in this case 2) then its not happening .
> 
> I am still trying with wms[5].mergeNewParams({userid:user_id}) but its not
> working yet  
> 
> 
> Thanks,
> Reena.
> 
> 
> 
> 
> Arnd Wippermann wrote:
>> 
>> You can try to add the param to the url
>>  
>> "http://gis.rtbi-iitm.in/cgi-bin/mapserv?map=/var/www/html/customisati
>> on/map
>> file/customNR.map&userid=anID"
>> 
>> and in the mapfile try user_id='%userid%'. In special cases it is 
>> possible per cgi-parameter manipulate the mapfile. I don't no if this 
>> case is one of them.
>> 
>> Try the mapserver-list, because it is not an OpenLayers issue.
>> 
>> To retrieve more than one layer with OpenLayers WMS you use
>> 
>> {'layers' : 'NR_point,NR_polygon', 'transparent' : true, ... }, ...
>> 
>> a comma-separatet list as christopher mentioned.
>> 
>> Arnd Wippermann
>> 
>> 
>> -----Ursprüngliche Nachricht-----
>> Von: users-bounces at openlayers.org 
>> [mailto:users-bounces at openlayers.org] Im Auftrag von S.Reena
>> Gesendet: Freitag, 7. November 2008 10:39
>> An: users at openlayers.org
>> Betreff: [OpenLayers-Users] Pass parameters to mapfile
>> 
>> 
>> I am using the following data in my mapfile
>> 
>>  DATA "the_geom from ( select * from customised_point AS f where 
>> user_id='userid' AND f.subcat_id IN (select subcat_id from subcat_info 
>> where maincat_id =0))AS foo USING UNIQUE gid"
>> 
>> 
>> I want the userid ( used in the above query) to be passed to map file 
>> at the time of layer creation something like this....
>> 
>> wms[5] = new OpenLayers.Layer.WMS.Untiled(
>>                   
>> "Customization","http://gis.rtbi-iitm.in/cgi-bin/mapserv?map=/var/www/
>> html/c
>> ustomisation/mapfile/customNR.map"
>> + userid  ,{'layers': "NR_point",'transparent':"true"},{'layers':
>> "NR_polygon",'transparent':"true"},{'isBaseLayer':false} );
>> 
>> How to do that?
>> 
>> Thanks in advance :)
>> 
>> Cheers,
>> Reena.
>> --
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> 
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