app/django/contrib/gis/geos/error.py
author Todd Larsen <tlarsen@google.com>
Sat, 22 Nov 2008 09:49:13 +0000
changeset 549 00a9ce3dc082
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Fix some broken help_text bubbles (they are truncated or not displayed if they contain " double quotation marks). Add notice text (sort of ugly at the moment, Dmitri? :) explaining the "Public name" and "Link ID" fields in great detail. This patch is in preparation for making "Link ID" immutable for Users in a subsequent patch. Patch by: Todd Larsen

"""
 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