updateOrCreateFromFields is made to call updateOrCreateFromKeyName.
updateOrCreateFromFields called self._model.get_or_insert which only creates
new entities but doesn't update the properties if the entity already exists.
So updateOrCreateFromFields is now made to call updateOrCreateFromKeyName
which actually updates the entity properties if entity already exists.
Reviewed by: Lennard de Rijk
"""
This module provides the backend for spatial SQL construction with Django.
Specifically, this module will import the correct routines and modules
needed for GeoDjango to interface with the spatial database.
"""
from django.conf import settings
from django.contrib.gis.db.backend.util import gqn
# Retrieving the necessary settings from the backend.
if settings.DATABASE_ENGINE == 'postgresql_psycopg2':
from django.contrib.gis.db.backend.postgis import create_spatial_db, get_geo_where_clause, SpatialBackend
elif settings.DATABASE_ENGINE == 'oracle':
from django.contrib.gis.db.backend.oracle import create_spatial_db, get_geo_where_clause, SpatialBackend
elif settings.DATABASE_ENGINE == 'mysql':
from django.contrib.gis.db.backend.mysql import create_spatial_db, get_geo_where_clause, SpatialBackend
else:
raise NotImplementedError('No Geographic Backend exists for %s' % settings.DATABASE_ENGINE)