[mapserver-users] Inconsistency between 5.4 and 5.2.1 concerningWhichShapes()?

[Steve Lime]

What does your layer definition look like? Probably stems from the fix
put in
place for ticket #2689 (http://trac.osgeo.org/mapserver/ticket/2689).
That fix
may need more work as I imagine the msLayerWhichItems() is clobbering
the
item setup done when the layer is opened.

Hmmm, how to fix...

Steve

>>> Jim Strevinas <voas_acc at hotmail.com> 04/27/09 8:27 PM >>>

Hello list, I recently migrated to 5.4. I observed the following
inconsistency 
and I would be grateful if someone can duplicate the problem too.
In my (mapscript python) code i manually grab layer features using:

layer.open()
status = layer.whichShapes(map.extent)
while (1):
       shape = layer.nextShape()
       if shape==None: 
                break
       print shape.numvalues

The last print returns the number of non-spatial attributes. 
In mapserver 5.2.1 it is returned correctly but in 5.4 is always 0
just like all the non spatial values are all null. One could also
observer that:

layer.open()
print layer.numitems   # Return the right value always

status = layer.whichShapes(map.extent)
print layer.numitems   # Returns 0 ONLY in 5.4

My workaround now is to temporary store the whichShapes() returned
features' indexes in a list and later access using layer.getFeature(i)
which preserves
the existance of non-spatial. I don;t know yet if this problem arised
only
for me, but i thought it would be wise to inform.


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