Bug report #14119: Ensure the OGC filter XML expression contains the GML namespace references. - QGIS Application - QGIS Issue Tracking

Bug report #14119

Ensure the OGC filter XML expression contains the GML namespace references.

Added by Jeremy Palmer over 8 years ago. Updated about 8 years ago.

Status:	Closed
Priority:	Normal
Assignee:	-
Category:	Web Services clients/WFS
Affected QGIS version:	master	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:
Crashes QGIS or corrupts data:	No	Copied to github as #:	22121

Description

WFS Servers such as Geoserver won't parse the C XML filter unless it's there. Example expression that fails:

QGIS Expression: "intersects($geometry, geom_from_wkt('POLYGON)'))"

Gets converted to:

OGC XML:
<ogc:Filter xmlns:ogc="http://www.opengis.net/ogc xmlns:gml=http://www.opengis.net/ogc">
<ogc:Intersects>
<ogc:PropertyName>geometry</ogc:PropertyName>
<gml:Polygon>
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates cs="," ts=" ">171.9043399999999906,-43.2101120000000023 172.32836199999999849,-43.2101120000000023 172.32836199999999849,-42.99926099999999707 171.9043399999999906,-42.99926099999999707 171.9043399999999906,-43.2101120000000023</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ogc:Intersects>
</ogc:Filter>

To fix this the expression to OGC XML function should add the xmlns:gml=http://www.opengis.net/ogc namespace. e.g

<ogc:Filter xmlns:ogc="http://www.opengis.net/ogc xmlns:gml="http://www.opengis.net/ogc">
<ogc:Intersects>
<ogc:PropertyName>geometry</ogc:PropertyName>
<gml:Polygon>
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates cs="," ts=" ">171.9043399999999906,-43.2101120000000023 172.32836199999999849,-43.2101120000000023 172.32836199999999849,-42.99926099999999707 171.9043399999999906,-42.99926099999999707 171.9043399999999906,-43.2101120000000023</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ogc:Intersects>
</ogc:Filter>