#26789: ORM produces query with NULL instead of empty geometry ----------------------------+-------------------------------------- Reporter: sir-sigurd | Owner: sir-sigurd Type: Bug | Status: assigned Component: GIS | Version: 1.9 Severity: Normal | Resolution: Keywords: | Triage Stage: Accepted Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 ----------------------------+--------------------------------------
Comment (by rcoup): Simplistic fix could be something like (`BaseSpatialField`): {{{ def get_db_prep_save(self, value, connection): """ Prepare the value for saving in the database. """ if value or isinstance(value, Geometry): return connection.ops.Adapter(self.get_prep_value(value)) else: return None }}} A test case I used to track down the issue (`gis_tests/geoapp/test_regress.py`): {{{ def test_empty_assignment(self): c = Country.objects.get(name='Texas') c.mpoly = 'SRID=4326;MULTIPOLYGON EMPTY' self.assertIsInstance(c.mpoly, geos.MultiPolygon) self.assertTrue(c.mpoly.empty) c.save() c.refresh_from_db() self.assertIsInstance(c.mpoly, geos.MultiPolygon) self.assertTrue(c.mpoly.empty) }}} -- Ticket URL: <https://code.djangoproject.com/ticket/26789#comment:5> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/068.bdf8b996ef0a268eff501c2b44923487%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.