GetFeature info with info_format=application/vnd.ogc.gml

[assefa]

When requesting a GetFeature on a WMS server with 
info_format=application/vnd.ogc.gml, there need to be in the Layer a DUMP TRUE 
to get any results.

 Not sure here is it is just a doc issue (since this is specified for a WFS 
layer) or there need to be other considerations.

 Note (test for layer->dump is done in function msGMLWriteQuery in mapgml.c)

[dmorissette]

It has always been the case that DUMP TRUE was required for GetFeatureInfo in
GML format (that's by design). If the WMS documentation doesn't say so already
then it's a doc issue.

[assefa]

Jeff,

 Can you add a note on the on the WMS server document ?

[assefa]

I forgot yesterday about a note I had : I find it a bit inconsistent that the 
GetFeatureInfo would need a DUMP TRUE only for GML output but not for 
plain/text. 

[dmorissette]

That's to protect the data because with GML you get the whole features
(coordinates and attributes), but with the normal query templates mechanism you
return only what is selected in the templates. i.e. if you don't want to output
anything with text/html then don't set templates or set dummy ones, but with GML
there are no templates, so something was needed to block the GML output.

The problem is really that our text/plain output is inconsistent with that and
exposes all the attributes by default. This is where the mistake is... I wonder
if it's too late to change it though. Perhaps we should work on bug 300 if we
change anything.

[jmckenna@…]

i added a note about this to the wms-server doc for 4.4 and 4.6.

Note that when i tested this, i add the following metadata to my wms-server doc:

    "wms_feature_info_mime_type" "application/vnd.ogc.gml"

and got this from getcapabilities..

      <Format>text/plain</Format>
      <Format>application/vnd.ogc.gml</Format>
      <Format>application/vnd.ogc.gml</Format>

I would have expected to only see gml, since i only set it for gml...but i got 2
gml and 1 text.  I guess this is supposed to happen???

(tested with 4.6.0beta3)

[jmckenna@…]

note that i have opened bug#1379 for the duplicate getfeatureinfo format issue.