web/lib/django/contrib/gis/geos/error.py
author ymh <ymh.work@gmail.com>
Wed, 20 Jan 2010 00:34:04 +0100
changeset 0 0d40e90630ef
permissions -rw-r--r--
Blinkster creation
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     1
"""
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     2
 This module houses the GEOS exceptions, specifically, GEOSException and
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     3
 GEOSGeometryIndexError.
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     4
"""
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     5
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     6
class GEOSException(Exception):
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     7
    "The base GEOS exception, indicates a GEOS-related error."
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     8
    pass
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
     9
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    10
class GEOSIndexError(GEOSException, KeyError):
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    11
    """
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    12
    This exception is raised when an invalid index is encountered, and has
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    13
    the 'silent_variable_feature' attribute set to true.  This ensures that
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    14
    django's templates proceed to use the next lookup type gracefully when
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    15
    an Exception is raised.  Fixes ticket #4740.
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    16
    """
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    17
    # "If, during the method lookup, a method raises an exception, the exception
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    18
    #  will be propagated, unless the exception has an attribute 
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    19
    #  `silent_variable_failure` whose value is True." -- Django template docs.
0d40e90630ef Blinkster creation
ymh <ymh.work@gmail.com>
parents:
diff changeset
    20
    silent_variable_failure = True