[OpenLayers-Users] WFS Spatial Filter throwing Error 500

Fri Aug 5 07:52:02 EDT 2011

The problem: I am trying to implement something similar to 
http://openlayers.org/dev/examples/wfs-spatial-filter.html with my own 
data served by MapServer through a WFS. I just changed some lines in the 
code to make it work with MapServer, so the code is almost equal to the 
code in the example at the moment. So far it's working fine UNTIL I drag 
the polygon to apply the spatial filter! According to the 
getCapabitilies the server should be able to handle the request:

...
<ogc:Spatial_Capabilities>
<ogc:Spatial_Operators>
<ogc:Equals/>
<ogc:Disjoint/>
<ogc:Touches/>
<ogc:Within/>
<ogc:Overlaps/>
<ogc:Crosses/>
<ogc:Intersect/>
<ogc:Contains/>
<ogc:DWithin/>
<ogc:BBOX/>
</ogc:Spatial_Operators>
</ogc:Spatial_Capabilities>
...

Both WFS GetFeature requests are sent via HTTP POST. The first one that 
works (called on page load) looks like this:

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" xmlns:xsi="http  
://www.w3.org/2001/XMLSchema-instance" service="WFS" version="1.0.0" 
xsi:schemaLocation="http://www.opengis.net/wfs 
http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd">
<wfs:Query typeName="omega">
<ogc:Filter xmlns:ogc="http://www  .opengis.net/ogc">
<ogc:BBOX>
<ogc:PropertyName>msGeometry</ogc:PropertyName>
<gml:Box xmlns:gml="http:  //www.opengis.net/gml" srsName="EPSG:4326">
<gml:coordinates decimal="." cs="," ts=" ">135.45,-47.425 
157.95,-36.175</gml:coordinates>
</gml:Box>
</ogc:BBOX>
</ogc:Filter>
</wfs:Query>
</wfs:GetFeature>

The request not working looks like this:

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" service="WFS" 
version="1.0.0" xsi:schemaLocation="http://www.opengis.net/wfs 
http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd">
<wfs:Query xmlns:ms="http://mapserver.gis.umn.edu/mapserver" 
typeName="ms:omega">
<ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
<ogc:And>
<ogc:Intersects>
<ogc:PropertyName>msGeometry</ogc:PropertyName>
<gml:Polygon xmlns:gml="http://www.opengis.net/gml" srsName="EPSG:4326">
<gml:outerBoundaryIs>
<gml:LinearRing>
<gml:coordinates decimal="." cs="," ts=" 
">145.72880866081,-40.709423872828 145.83867194206,-42.752880904078 
148.34355475456,-40.995068404078 
145.72880866081,-40.709423872828</gml:coordinates>
</gml:LinearRing>
</gml:outerBoundaryIs>
</gml:Polygon>
</ogc:Intersects>
<ogc:BBOX>
<ogc:PropertyName>msGeometry</ogc:PropertyName>
<gml:Box xmlns:gml="http://www.opengis.net/gml" srsName="EPSG:4326">
<gml:coordinates decimal="." cs="," ts=" ">135.45,-47.40302734375 
157.95,-36.15302734375</gml:coordinates>
</gml:Box>
</ogc:BBOX>
</ogc:And>
</ogc:Filter>
</wfs:Query>
</wfs:GetFeature>

The error message I receive:

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>500 Internal Server Error</title>
</head><body>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error or
misconfiguration and was unable to complete
your request.</p>
<p>Please contact the server administrator,
  root at localhost and inform them of the time the error occurred,
and anything you might have done that may have
caused the error.</p>
<p>More information about this error may be available
in the server error log.</p>
<hr>
<address>Apache/2.2.3 (Red Hat) Server at localhost Port 80</address>
</body></html>

Does anyone have an idea? I don't know if this is a MapServer or 
OpenLayers or (whatever?) problem. Any help is appreciated, I am stuck.

The setup:

    * OS: Red Hat Enterprise Linux 5.4
    * PostgreSQL 8.2
    * PostGIS 1.3
    * MapServer 5.6.5
    * OpenLayers, one of the latest versions. ProxyHost set and working
      (calling the proxy.cgi leads to OpenLayers website)

Kind regards,
Bryan

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