app/django/contrib/gis/geos/error.py
author Sverre Rabbelier <srabbelier@gmail.com>
Mon, 13 Apr 2009 15:31:39 +0000
changeset 2177 e2c193e1f631
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Do not rely on dicts.merge to change target Also make dicts.merge actually not touch target. This is much cleaner than modifying in place, especially since we assign the result of the dicts.merge call to target most of the time anyway. Patch by: Sverre Rabbelier
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"""
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 This module houses the GEOS exceptions, specifically, GEOSException and
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 GEOSGeometryIndexError.
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"""
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class GEOSException(Exception):
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    "The base GEOS exception, indicates a GEOS-related error."
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    pass
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class GEOSIndexError(GEOSException, KeyError):
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    """
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    This exception is raised when an invalid index is encountered, and has
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    the 'silent_variable_feature' attribute set to true.  This ensures that
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    django's templates proceed to use the next lookup type gracefully when
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    an Exception is raised.  Fixes ticket #4740.
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    """
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    # "If, during the method lookup, a method raises an exception, the exception
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    #  will be propagated, unless the exception has an attribute 
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    #  `silent_variable_failure` whose value is True." -- Django template docs.
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    silent_variable_failure = True