app/django/contrib/gis/db/models/manager.py
author Lennard de Rijk <ljvderijk@gmail.com>
Thu, 13 Aug 2009 14:02:22 -0700
changeset 2770 71a5a56cf29e
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Redone the acceptedStudentsExport functionality. The method has been renamed to exportStudentsWithProjects and retrieves the document_name and the new shipping address properties. Also it filters out all invalid projects or projects for wich the scope_path doesn't match the given scope_pa th_start. Also there is no more need to use the argument given to this method when adding the extra columns. The data is now prepared by one loop which uses the key present in the accepted_students dictionary for retrieving the data used by the extra columns.

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)