# HG changeset patch
# User Peter Sanchez <petersanchez@gmail.com>
# Date 1318024993 25200
#      Fri Oct 07 15:03:13 2011 -0700
# Node ID 0982603ed15dcb1bf7c85a3ffe61bd1aebb9b27e
# Parent  62ee4c1e8cee4091bba6b1c7612e6e4426974bcb
Added error_callback signal

diff --git a/callback/__init__.py b/callback/__init__.py
--- a/callback/__init__.py
+++ b/callback/__init__.py
@@ -1,10 +1,10 @@
 from callback import callback_manager
 from base import CallbackException, CallbackBase
-from signals import stored_callback, processed_callback
+from signals import stored_callback, processed_callback, error_callback
 
 
 __version__ = '0.3'
 __all__ = [
     'CallbackException', 'CallbackBase', 'callback_manager',
-    'stored_callback', 'processed_callback',
+    'stored_callback', 'processed_callback', 'error_callback',
 ]
diff --git a/callback/callback.py b/callback/callback.py
--- a/callback/callback.py
+++ b/callback/callback.py
@@ -1,7 +1,7 @@
 from django.db import models
 from models import CallbackMap
 from base import CallbackException, CallbackBase
-from signals import stored_callback, processed_callback
+from signals import stored_callback, processed_callback, error_callback
 
 REQUIRED_METHODS = ('process',)
 
@@ -68,6 +68,11 @@
             )
         except Exception, e:
             callback_instance.mark_error(str(e))
+            error_callback.send(
+                sender=self,
+                callback_instance=callback_instance,
+                model_instance=model,
+            )
             raise CallbackException(str(e))
 
 
diff --git a/callback/signals.py b/callback/signals.py
--- a/callback/signals.py
+++ b/callback/signals.py
@@ -8,3 +8,7 @@
 processed_callback = dispatch.Signal(
     providing_args=['callback_instance', 'model_instance'],
 )
+
+error_callback = dispatch.Signal(
+    providing_args=['callback_instance', 'model_instance'],
+)