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I'm running into a problem when saving a coordinate into one of my models in (Geo)Django. My point field is setup as:

location = PointField(blank=True, null = True)

So while running some tests in the django shell I noticed my coordinates were changing...

obj.location = 'POINT(-120.18444970926208 50.65664762026928)'




Another thing I've noticed If I set the point using an UPDATE in postgres and then...



but if I run a save and check the coordinate again I get...


Anybody have any ideas where I can start looking to sort this out or any suggestions what may be causing this.

Thanks, Dustin


  • Django 1.3.1
  • GDAL 1.9.1
  • Python 2.7.2
  • PostGIS 1.5.3
  • GEOS 3.3.3
  • PostgreSQL 9.1.4
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1 Answer 1

try to add your srid to your point for a more detailed explanation.

>>> from django.contrib.gis.geos import GEOSGeometry
>>> point_loc = GEOSGeometry('POINT(-120.18444970926208 50.65664762026928)', srid=3084)  
>>> z = Object(location = point_loc)

i hope it helps you..

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I've defined the SRID before using 'SRID=4326;POINT(-120.18444970926208 50.65664762026928)' and I also just tried your method with no luck. – gridcell Aug 1 '12 at 12:20
Tracked it down to a bug somewhere else. Thanks Aragon for the feedback. – gridcell Aug 1 '12 at 15:08
@gridcell You might want to post the bug/issue as an answer and accept it. – Chad Cooper Dec 29 '12 at 15:26

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