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<p class="MsoNormal"><span style="color:#1F497D">Looking at mapwms.c it doesn’t look like it. The code that outputs basic groups just outputs a plain <Layer> tag (L3345) with no attributes. It does look like that, at least for simple groups, it could be possible
to do what you’re asking by adding a private isGroupQueryable() function that would call msIsLayerQueryable() whenever a layer’s group name matches the target and would return true accordingly. Not sure how that would work with subgroup support though.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Steve<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> mapserver-users [mailto:mapserver-users-bounces@lists.osgeo.org]
<b>On Behalf Of </b>Rahkonen Jukka (MML)<br>
<b>Sent:</b> Monday, January 04, 2016 9:44 AM<br>
<b>To:</b> Mapserver-Users (mapserver-users@lists.osgeo.org) <mapserver-users@lists.osgeo.org><br>
<b>Subject:</b> [mapserver-users] How to set queryable=1 for a GROUP layer?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="FI">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FI"><o:p> </o:p></span></p>
<p class="MsoNormal">I have a layer group, let’s say ”group_1”, where all the sub-layers are queryable. The group layer is also effectively queryable and GetFeatureInfo works if I use &QUERY_LAYERS=group_1. The problem is that the group layer is not announced
announced as queryable in the GetCapabilities<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><Layer><o:p></o:p></p>
<p class="MsoNormal"><Name> group_1</Name><o:p></o:p></p>
<p class="MsoNormal"><Title> group_1</Title><o:p></o:p></p>
<p class="MsoNormal">…<o:p></o:p></p>
<p class="MsoNormal"> <Layer queryable="1" opaque="0" cascaded="0"><o:p></o:p></p>
<p class="MsoNormal"> <Name> sub_layer</Name><o:p></o:p></p>
<p class="MsoNormal"> ….<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like to see it as:<o:p></o:p></p>
<p class="MsoNormal"><Layer queryable="1"><o:p></o:p></p>
<p class="MsoNormal"><Name> group_1</Name><o:p></o:p></p>
<p class="MsoNormal"><Title> group_1</Title><o:p></o:p></p>
<p class="MsoNormal">….<o:p></o:p></p>
<p class="MsoNormal"> <Layer queryable="1" opaque="0" cascaded="0"><o:p></o:p></p>
<p class="MsoNormal"> <Name> sub_layer</Name><o:p></o:p></p>
<p class="MsoNormal"> ….<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Without queryable attribute I can’t make GetFeatureInfo to work when I am cascading it with Geoserver. By reading the WMS 1.1.1 standard I feel that GeoServer is behaving as it is supposed to work: if the layer is not announced to be queryable
then it is not queryable. I can’t find any mention in the WMS standard that a group layer should behave in a different way than the normal layers.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">7.1.4.6 Layer Attributes<o:p></o:p></p>
<p class="MsoNormal">A <Layer> may have zero or more of the following XML attributes: queryable, cascaded,<o:p></o:p></p>
<p class="MsoNormal">opaque, noSubsets, fixedWidth, fixedHeight. All of these attributes are optional and<o:p></o:p></p>
<p class="MsoNormal">default to 0<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">7.1.4.6.1 Queryable layers<o:p></o:p></p>
<p class="MsoNormal">A Layer is said to be "queryable" if the server supports the GetFeatureInfo operation on<o:p></o:p></p>
<p class="MsoNormal">that Layer. A server may support GetFeatureInfo on some of its layers but not on all. A<o:p></o:p></p>
<p class="MsoNormal">server shall issue a Service Exception (code="LayerNotQueryable") if GetFeatureInfo is<o:p></o:p></p>
<p class="MsoNormal">requested on a Layer that is not queryable.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there any way to add the queryable=”1” attribute to a layer group?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Jukka Rahkonen-<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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