X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/2380185d894e5a62a20b91a0c5a3a48497fb3cfb..3c26965045e8881acd4d5de8c195e4aa61b95ed1:/exceptions.py

diff --git a/exceptions.py b/exceptions.py
index b40f08a..f53083d 100644
--- a/exceptions.py
+++ b/exceptions.py
@@ -1,7 +1,19 @@
+from django.core.exceptions import ImproperlyConfigured
+
+
+MIDDLEWARE_NOT_CONFIGURED = ImproperlyConfigured("""Philo requires the RequestNode middleware to be installed. Edit your MIDDLEWARE_CLASSES setting to insert 'philo.middleware.RequestNodeMiddleware'.""")
+
+
 class ViewDoesNotProvideSubpaths(Exception):
-	""" Raised by get_subpath when the View does not provide subpaths (the default). """
+	""" Raised by View.reverse when the View does not provide subpaths (the default). """
 	silent_variable_failure = True
 
+
 class ViewCanNotProvideSubpath(Exception):
-	""" Raised by get_subpath when the View can not provide a subpath for the supplied object. """
-	silent_variable_failure = True
\ No newline at end of file
+	""" Raised by View.reverse when the View can not provide a subpath for the supplied arguments. """
+	silent_variable_failure = True
+
+
+class AncestorDoesNotExist(Exception):
+	""" Raised by get_path if the root model is not an ancestor of the current model """
+	pass
\ No newline at end of file