small bugfix for nested layer_groups (WMS)

[silke@…]

When the wms_layer_group is used for some layers but not for all it can happen
that writing the Capabilities stops because the mapserver tries to read an empty
numNestedGroups. The small patch under URL fixes the problem for me.

Many greetings,

Silke

[dmorissette]

Looking into this now

[dmorissette]

Fixed (will be in 4.4.0-beta2). Instead of applying the patch directly, I fixed
the function msIsSubGroup() to return MS_FALSE if numOtherGroups==0. This was a
trivial fix, but unfortuately I don't have a mapfile to test this, so could you
please test it and confirm that it works ok. Thanks.

[silke@…]

Yes, it is OK now. Thank you for your fast reply and for fixing the code :-)

Silke

[paul.den.dulk@…]

hi, I wrote this code. Could I also test your fix to find out what went wrong?

Paul.

[bartvde@…]

Paul, the fix from Silke can be found on the following URL:

http://ftp.intevation.de/users/silke/mapserver/mapserver-4.4.0-layergroup.patch

Daniel changed this fix a bit, and his fix is in the latest CVS I assume.

[bartvde@…]

Added Paul to the cc so he will receive my post .... :)

[dmorissette]

Yes, my fix is in CVS and is is different from Silke's patch. Just get the
latest source from CVS and yoou can test it.