app/django/contrib/gis/geos/error.py
author Sverre Rabbelier <srabbelier@gmail.com>
Fri, 23 Jan 2009 16:54:46 +0000
changeset 927 f790f77ba6b7
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Restore context in deny() page Now that we know when the sidebar is doing the access checks we can safely construct a new context in deny (without having to worry that it will try to do more access checks that result in deny, which will call for a new context... etc). Patch by: Sverre Rabbelier

"""
 This module houses the GEOS exceptions, specifically, GEOSException and
 GEOSGeometryIndexError.
"""

class GEOSException(Exception):
    "The base GEOS exception, indicates a GEOS-related error."
    pass

class GEOSIndexError(GEOSException, KeyError):
    """
    This exception is raised when an invalid index is encountered, and has
    the 'silent_variable_feature' attribute set to true.  This ensures that
    django's templates proceed to use the next lookup type gracefully when
    an Exception is raised.  Fixes ticket #4740.
    """
    # "If, during the method lookup, a method raises an exception, the exception
    #  will be propagated, unless the exception has an attribute 
    #  `silent_variable_failure` whose value is True." -- Django template docs.
    silent_variable_failure = True