27 lines
851 B
Python
27 lines
851 B
Python
"""
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This module holds the base `SpatialBackend` object, which is
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instantiated by each spatial backend with the features it has.
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"""
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# TODO: Create a `Geometry` protocol and allow user to use
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# different Geometry objects -- for now we just use GEOSGeometry.
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from django.contrib.gis.geos import GEOSGeometry, GEOSException
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class BaseSpatialBackend(object):
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Geometry = GEOSGeometry
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GeometryException = GEOSException
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def __init__(self, **kwargs):
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kwargs.setdefault('distance_functions', {})
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kwargs.setdefault('limited_where', {})
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for k, v in kwargs.iteritems(): setattr(self, k, v)
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def __getattr__(self, name):
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"""
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All attributes of the spatial backend return False by default.
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"""
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try:
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return self.__dict__[name]
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except KeyError:
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return False
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