app/django/contrib/gis/db/backend/base.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.

"""
 This module holds the base `SpatialBackend` object, which is
 instantiated by each spatial backend with the features it has.
"""
# TODO: Create a `Geometry` protocol and allow user to use
# different Geometry objects -- for now we just use GEOSGeometry.
from django.contrib.gis.geos import GEOSGeometry, GEOSException

class BaseSpatialBackend(object):
    Geometry = GEOSGeometry
    GeometryException = GEOSException

    def __init__(self, **kwargs):
        kwargs.setdefault('distance_functions', {})
        kwargs.setdefault('limited_where', {})
        for k, v in kwargs.iteritems(): setattr(self, k, v)
 
    def __getattr__(self, name):
        """
        All attributes of the spatial backend return False by default.
        """
        try:
            return self.__dict__[name]
        except KeyError:
            return False