--- a/web/lib/django/contrib/gis/db/backend/spatialite/field.py	Wed May 19 17:43:59 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,82 +0,0 @@
-from django.db.models.fields import Field # Django base Field class
-
-# Quotename & geographic quotename, respectively
-from django.db import connection
-qn = connection.ops.quote_name
-from django.contrib.gis.db.backend.util import gqn
-from django.contrib.gis.db.backend.spatialite.query import GEOM_FROM_TEXT, TRANSFORM
-
-class SpatiaLiteField(Field):
-    """
-    The backend-specific geographic field for SpatiaLite.
-    """
-
-    def _add_geom(self, style, db_table):
-        """
-        Constructs the addition of the geometry to the table using the
-        AddGeometryColumn(...) OpenGIS stored procedure.
-
-        Takes the style object (provides syntax highlighting) and the
-        database table as parameters.
-        """
-        sql = (style.SQL_KEYWORD('SELECT ') +
-               style.SQL_TABLE('AddGeometryColumn') + '(' +
-               style.SQL_TABLE(gqn(db_table)) + ', ' +
-               style.SQL_FIELD(gqn(self.column)) + ', ' +
-               style.SQL_FIELD(str(self.srid)) + ', ' +
-               style.SQL_COLTYPE(gqn(self.geom_type)) + ', ' +
-               style.SQL_KEYWORD(str(self.dim)) + ', ' +
-               style.SQL_KEYWORD(str(int(not self.null))) +
-               ');')
-        return sql
-
-    def _geom_index(self, style, db_table):
-        "Creates a spatial index for this geometry field."
-        sql = (style.SQL_KEYWORD('SELECT ') +
-              style.SQL_TABLE('CreateSpatialIndex') + '(' +
-              style.SQL_TABLE(gqn(db_table)) + ', ' +
-              style.SQL_FIELD(gqn(self.column)) + ');')
-        return sql
-
-    def post_create_sql(self, style, db_table):
-        """
-        Returns SQL that will be executed after the model has been
-        created. Geometry columns must be added after creation with the
-        OpenGIS AddGeometryColumn() function.
-        """
-        # Getting the AddGeometryColumn() SQL necessary to create a OpenGIS
-        # geometry field.
-        post_sql = self._add_geom(style, db_table)
-
-        # If the user wants to index this data, then get the indexing SQL as well.
-        if self.spatial_index:
-            return (post_sql, self._geom_index(style, db_table))
-        else:
-            return (post_sql,)
-
-    def _post_delete_sql(self, style, db_table):
-        "Drops the geometry column."
-        sql = (style.SQL_KEYWORD('SELECT ') +
-               style.SQL_KEYWORD('DropGeometryColumn') + '(' +
-               style.SQL_TABLE(gqn(db_table)) + ', ' +
-               style.SQL_FIELD(gqn(self.column)) +  ');')
-        return sql
-
-    def db_type(self):
-        """
-        SpatiaLite geometry columns are added by stored procedures;
-        should be None.
-        """
-        return None
-
-    def get_placeholder(self, value):
-        """
-        Provides a proper substitution value for Geometries that are not in the
-        SRID of the field.  Specifically, this routine will substitute in the
-        Transform() and GeomFromText() function call(s).
-        """
-        if value is None or value.srid == self.srid:
-            return '%s(%%s,%s)' % (GEOM_FROM_TEXT, self.srid)
-        else:
-            # Adding Transform() to the SQL placeholder.
-            return '%s(%s(%%s,%s), %s)' % (TRANSFORM, GEOM_FROM_TEXT, value.srid, self.srid)