Hi all,
when writing a script in Python for processing shapefiles I found
that I can add to the shapefile new fields with the same name many
times without any error or warning. But AFAIK all fields in shapefile
must have unique field names. Is this a bug and I need to post a
ticket? Or maybe I do something wrong?
Here is code
#!/usr/bin/env python
# -*- coding: utf-8 -*-
try:
from osgeo import ogr
except ImportError:
import ogr
import sys
def createField( inLayer, fieldName ):
fieldDef = ogr.FieldDefn( fieldName, ogr.OFTReal )
fieldDef.SetWidth( 12 )
fieldDef.SetPrecision( 4 )
if inLayer.CreateField( fieldDef ) != 0:
print "Can't create field %s" % fieldDef.GetNameRef()
return False
return True
if __name__ == '__main__':
args = sys.argv[ 1: ]
filePath = args[ 0 ]
inShape = ogr.Open( filePath, True )
if inShape is None:
print 'Unable to open shapefile', filePath
sys.exit( 1 )
inLayer = inShape.GetLayer( 0 )
for i in range( 3 ):
name = 'new_field'
if not createField( inLayer, name ):
print 'ERROR'
sys.exit( 1 )
Script get from commandline path to any shapefile and adds to it
4 new fields with same name.
My software GDAL/OGR 1.6.3 with Python 2.5.2 under Linux.
Thanks
--
Alexander Bruy
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