+
−from django.db.models.manager import Manager
+
−from django.contrib.gis.db.models.query import GeoQuerySet
+
−
+
−class GeoManager(Manager):
+
−    "Overrides Manager to return Geographic QuerySets."
+
−
+
−    # This manager should be used for queries on related fields
+
−    # so that geometry columns on Oracle and MySQL are selected
+
−    # properly.
+
−    use_for_related_fields = True
+
−
+
−    def get_query_set(self):
+
−        return GeoQuerySet(model=self.model)
+
−
+
−    def area(self, *args, **kwargs):
+
−        return self.get_query_set().area(*args, **kwargs)
+
−
+
−    def centroid(self, *args, **kwargs):
+
−        return self.get_query_set().centroid(*args, **kwargs)
+
−
+
−    def difference(self, *args, **kwargs):
+
−        return self.get_query_set().difference(*args, **kwargs)
+
−
+
−    def distance(self, *args, **kwargs):
+
−        return self.get_query_set().distance(*args, **kwargs)
+
−
+
−    def envelope(self, *args, **kwargs):
+
−        return self.get_query_set().envelope(*args, **kwargs)
+
−
+
−    def extent(self, *args, **kwargs):
+
−        return self.get_query_set().extent(*args, **kwargs)
+
−
+
−    def gml(self, *args, **kwargs):
+
−        return self.get_query_set().gml(*args, **kwargs)
+
−
+
−    def intersection(self, *args, **kwargs):
+
−        return self.get_query_set().intersection(*args, **kwargs)
+
−
+
−    def kml(self, *args, **kwargs):
+
−        return self.get_query_set().kml(*args, **kwargs)
+
−
+
−    def length(self, *args, **kwargs):
+
−        return self.get_query_set().length(*args, **kwargs)
+
−
+
−    def make_line(self, *args, **kwargs):
+
−        return self.get_query_set().make_line(*args, **kwargs)
+
−    
+
−    def mem_size(self, *args, **kwargs):
+
−        return self.get_query_set().mem_size(*args, **kwargs)
+
−
+
−    def num_geom(self, *args, **kwargs):
+
−        return self.get_query_set().num_geom(*args, **kwargs)
+
−
+
−    def num_points(self, *args, **kwargs):
+
−        return self.get_query_set().num_points(*args, **kwargs)
+
−
+
−    def perimeter(self, *args, **kwargs):
+
−        return self.get_query_set().perimeter(*args, **kwargs)
+
−
+
−    def point_on_surface(self, *args, **kwargs):
+
−        return self.get_query_set().point_on_surface(*args, **kwargs)
+
−
+
−    def scale(self, *args, **kwargs):
+
−        return self.get_query_set().scale(*args, **kwargs)
+
−
+
−    def svg(self, *args, **kwargs):
+
−        return self.get_query_set().svg(*args, **kwargs)
+
−
+
−    def sym_difference(self, *args, **kwargs):
+
−        return self.get_query_set().sym_difference(*args, **kwargs)
+
−
+
−    def transform(self, *args, **kwargs):
+
−        return self.get_query_set().transform(*args, **kwargs)
+
−
+
−    def translate(self, *args, **kwargs):
+
−        return self.get_query_set().translate(*args, **kwargs)
+
−
+
−    def union(self, *args, **kwargs):
+
−        return self.get_query_set().union(*args, **kwargs)
+
−
+
−    def unionagg(self, *args, **kwargs):
+
−        return self.get_query_set().unionagg(*args, **kwargs)