[OpenLayers-Users] WMS server error. Requested layer(s) are not queryable.

[P Kishor]

On Fri, Sep 18, 2009 at 6:51 PM, Christopher Schmidt
<crschmidt at metacarta.com> wrote:
> On Fri, Sep 18, 2009 at 04:11:30PM -0500, P Kishor wrote:
>> Inspired by a recent post, I decided to implement WMSGetFeatureInfo
>> using the code in the OL examples. However, I am getting the following
>> error
>>
>> <ServiceException code="LayerNotQueryable">
>> msWMSFeatureInfo(): WMS server error. Requested layer(s) are not queryable.
>> </ServiceException>
>>
>> My backend server is MapServer, and per another archived email, I have
>> my LAYER definition in the mapfile tagged with DUMP true
>>
>>     LAYER
>>         NAME 'cds_stands'
>>         TYPE polygon
>>
>>         CONNECTIONTYPE postgis
>>         CONNECTION "..."
>>         DATA 'the_geom FROM cds_stands'
>>
>>         STATUS on
>>         DUMP true
>
> You don't have a 'template' in that layer paste. Is there one configured
> on the layer?


I do not have a template for that layer. I did not realize it was
needed, somehow thinking that a default field: value template was
"cooked" up by OL's ajax code. I will make one and try again (although
I am not even sure what to put in that template). That said, my
MapServer is reporting that the layer is not queryable, as shown
above. Is that because there is no template, or is that because, for
whatever reason, the layer is not queryable?

A GetCapabilities query reveals the same info...

    <Layer queryable="0" opaque="0" cascaded="0">
        <Name>cds_stands</Name>
        <Title>cds_stands</Title>
        <SRS>EPSG:4326 EPSG:3071 EPSG:900913</SRS>
        <LatLonBoundingBox minx="-180" miny="-1.10493e+13"
maxx="177.111" maxy="1.04158e+23" />
        <BoundingBox SRS="EPSG:3071"
                    minx="-2.5e+07" miny="-2.5e+07" maxx="2.5e+07"
maxy="2.5e+07" />
        <Style>
          <Name>default</Name>
          <Title>default</Title>
          <LegendURL width="140" height="329">
             <Format>image/png</Format>
             <OnlineResource
xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple"
xlink:href="http://localhost/cgi-bin/mapserv?map=/Users/punkish/Data/cnnf/cnnf.map&amp;version=1.1.0&amp;service=WMS&amp;request=GetLegendGraphic&amp;layer=cds_stands&amp;format=image/png&amp;STYLE=default"/>
          </LegendURL>
        </Style>
        <ScaleHint min="11.9736683623113" max="249.451424214819" />
    </Layer>

Anyway, I will deploy a template and try again.


> -- Chris
>
>>         ..
>>
>> Once I solve the above, I have a follow-up question -- the examples of
>> WMSGetFeatureInfo I have seen in the wild either don't specify any
>> layers at all (which, I believe, implies that all layers will be
>> queried at the point of click) or specify a layer in the code via
>>
>> layers: [layer1 layer2 ...],
>>
>>
>> How would I build a widget that allows the user choose which layer to query?
>>
>>
>> --
>> Puneet Kishor
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
>
> --
> Christopher Schmidt
> MetaCarta
>



-- 
Puneet Kishor http://www.punkish.org
Carbon Model http://carbonmodel.org
Charter Member, Open Source Geospatial Foundation http://www.osgeo.org
Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor
Nelson Institute, UW-Madison http://www.nelson.wisc.edu
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