Use the new optional argument to endRequest in the middleware
Currently endRequest is called twice on an exception if Django
intercepts the exception and returns it's own result. By setting
optional=True we do not crash on 'assert self.in_request'.
# Until model subclassing is a possibility, a mixin class is used to add
# the necessary functions that may be contributed for geographic objects.
class GeoMixin:
"""
The Geographic Mixin class provides routines for geographic objects,
however, it is no longer necessary, since all of its previous functions
may now be accessed via the GeometryProxy. This mixin is only provided
for backwards-compatibility purposes, and will be eventually removed
(unless the need arises again).
"""
pass