--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/db/backend/spatialite/__init__.py	Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,60 @@
+__all__ = ['create_test_spatial_db', 'get_geo_where_clause', 'SpatialBackend']
+
+from ctypes.util import find_library
+from django.conf import settings
+from django.db.backends.signals import connection_created
+
+from django.contrib.gis.db.backend.base import BaseSpatialBackend
+from django.contrib.gis.db.backend.spatialite.adaptor import SpatiaLiteAdaptor
+from django.contrib.gis.db.backend.spatialite.creation import create_test_spatial_db
+from django.contrib.gis.db.backend.spatialite.field import SpatiaLiteField
+from django.contrib.gis.db.backend.spatialite.models import GeometryColumns, SpatialRefSys
+from django.contrib.gis.db.backend.spatialite.query import *
+
+# Here we are figuring out the path to the SpatiLite library (`libspatialite`).
+# If it's not in the system PATH, it may be set manually in the settings via
+# the `SPATIALITE_LIBRARY_PATH` setting.
+spatialite_lib = getattr(settings, 'SPATIALITE_LIBRARY_PATH', find_library('spatialite'))
+if spatialite_lib:
+    def initialize_spatialite(sender=None, **kwargs):
+        """
+        This function initializes the pysqlite2 connection to enable the
+        loading of extensions, and to load up the SpatiaLite library
+        extension.
+        """
+        from django.db import connection
+        connection.connection.enable_load_extension(True)
+        connection.cursor().execute("SELECT load_extension(%s)", (spatialite_lib,))
+    connection_created.connect(initialize_spatialite)
+else:
+    # No SpatiaLite library found.
+    raise Exception('Unable to locate SpatiaLite, needed to use GeoDjango with sqlite3.')
+
+SpatialBackend = BaseSpatialBackend(name='spatialite', spatialite=True,
+                                    area=AREA,
+                                    centroid=CENTROID,
+                                    contained=CONTAINED,
+                                    difference=DIFFERENCE,
+                                    distance=DISTANCE,
+                                    distance_functions=DISTANCE_FUNCTIONS,
+                                    envelope=ENVELOPE,
+                                    from_text=GEOM_FROM_TEXT,
+                                    gis_terms=SPATIALITE_TERMS,
+                                    intersection=INTERSECTION,
+                                    length=LENGTH,
+                                    num_geom=NUM_GEOM,
+                                    num_points=NUM_POINTS,
+                                    point_on_surface=POINT_ON_SURFACE,
+                                    scale=SCALE,
+                                    select=GEOM_SELECT,
+                                    svg=ASSVG,
+                                    sym_difference=SYM_DIFFERENCE,
+                                    transform=TRANSFORM,
+                                    translate=TRANSLATE,
+                                    union=UNION,
+                                    unionagg=UNIONAGG,
+                                    Adaptor=SpatiaLiteAdaptor,
+                                    Field=SpatiaLiteField,
+                                    GeometryColumns=GeometryColumns,
+                                    SpatialRefSys=SpatialRefSys,
+                                    )