I have a class with a GeometryCollectionField, when I try to save a
MultiPolygon object in the GeometryCollectionField I always get a NULL
value in the GeometryCollectionField.
Other types of objects saved in the GeometryCollectionField work fine.
Somebody knows whats happening?
from django.contrib.gis.db import models
class gcol(models.Model):
name = models.CharField(max_length=50)
geom = models.GeometryCollectionField()
objects = models.GeoManager()
from gcollection.models import gcol
from django.contrib.gis.geos import GeometryCollection,
MultiPolygon, Polygon
p1 = Polygon( ((0, 0), (0, 1), (1, 1), (0, 0)) )
p2 = Polygon( ((1, 1), (1, 2), (2, 2), (1, 1)) )
mp = MultiPolygon(p1,p2)
a=gcol.objects.get(name='a')
a.geom=GeometryCollection((p1, p2))
a.save()
a.geom=GeometryCollection(mp)
a.save()
/usr/lib64/python2.7/site-packages/django/db/backends/sqlite3/base.py
in execute(self, query, params)
198 query = self.convert_query(query)
199 try:
--> 200 return Database.Cursor.execute(self, query,
params)
201 except Database.IntegrityError, e:
202 raise utils.IntegrityError,
utils.IntegrityError(*tuple(e)), sys.exc_info()[2]
IntegrityError: gcollection_gcol.geom may not be NULL
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