[marinemap] push by perrygeo...@gmail.com - Refinements to lingcod.shapes to allow for different geom and field ty... on 2011-11-08 22:44 GMT

[mari...@googlecode.com]

Revision: 78fbaba6d725
Author: Matthew Perry <perryg...@gmail.com>
Date: Tue Nov 8 14:47:21 2011
Log: Refinements to lingcod.shapes to allow for different geom and
field types
http://code.google.com/p/marinemap/source/detail?r=78fbaba6d725

Modified:
/lingcod/shapes/views/export.py

=======================================
--- /lingcod/shapes/views/export.py Thu Dec 9 13:05:42 2010
+++ /lingcod/shapes/views/export.py Tue Nov 8 14:47:21 2011
@@ -91,7 +91,7 @@
# print 'about to try to create data layer'
# print 'ds: %s, path: %s' % (ds, tmp.name)
###layer = ogr.OGR_DS_CreateLayer(ds, tmp.name, output_srs._ptr,
ogr_type, None)
- layer =
ds.CreateLayer('lyr',srs=output_srs,geom_type=ogr.wkbPolygon)
+ layer = ds.CreateLayer('lyr',srs=output_srs,geom_type=ogr_type)

# Create the fields
# Todo: control field order as param
@@ -100,7 +100,12 @@
###added = ogr.OGR_L_CreateField(layer, fld, 0)
###check_err(added)

- field_defn = ogr.FieldDefn(str(field.name),ogr.OFTString)
+ if field.__class__.__name__ == 'FloatField':
+ field_defn = ogr.FieldDefn(str(field.name),ogr.OFTReal)
+ elif field.__class__.__name__ == 'IntegerField':
+ field_defn = ogr.FieldDefn(str(field.name),ogr.OFTInteger)
+ else:
+ field_defn = ogr.FieldDefn(str(field.name),ogr.OFTString)
field_defn.SetWidth( 255 )
if layer.CreateField(field_defn) != 0:
raise Exception('Faild to create field')
@@ -136,18 +141,24 @@
idx = 0
for field in attributes:
value = getattr(item,field.name)
- try:
- string_value = str(value)
- except UnicodeEncodeError, E:
- # pass for now....
- # http://trac.osgeo.org/gdal/ticket/882
- string_value = ''
+
+ if field.__class__.__name__ == 'FloatField':
+ value = float(value)
+ elif field.__class__.__name__ == 'IntegerField':
+ value = int(value)
+ else:
+ try:
+ value = str(value)
+ except UnicodeEncodeError, E:
+ # http://trac.osgeo.org/gdal/ticket/882
+ value = ''
+
###ogr.OGR_F_SetFieldString(feat, idx, string_value)
#changing the following SetField command from accessing
field by name to index
#this change solves an issue that arose sometime after
gdal 1.6.3
#in which the field names became truncated to 10 chars in
CreateField
#feat.SetField(str(field.name),string_value)
- feat.SetField(idx, string_value)
+ feat.SetField(idx, value)
idx += 1

# Transforming & setting the geometry