Schema report preview for abstract class generates exception

[ronnielouie]

1. Create a WMS feature source to ​http://wms.jpl.nasa.gov/wms.cgi or any other feature providers and feature source that defines abstract classes.

2. Point your browser to ​http://localhost/mapguide/schemareport/main.php and enter the feature source created above.

3. Click on "View Data" for the OnEarth Web Map Server abstract class.

The result will be an exception because the query cannot be performed on an abstract class.

[ronnielouie]

Clicking on the View Data link in the feature source preview (SchemaReport) for an abstract feature class results in an exception. Since abstract classes don't contain any data, the View data link will be disabled.

​http://trac.osgeo.org/mapguide/changeset/3326