From 38c6df812574b3910dfbf524f4f03215c15c02a2 Mon Sep 17 00:00:00 2001
From: Andrew Godwin <andrew@aeracode.org>
Date: Wed, 24 Feb 2016 00:39:48 +0000
Subject: [PATCH] Move ResponseLater into exceptions module

---
 channels/exceptions.py | 16 ++++++++++++++++
 channels/handler.py    | 10 +++-------
 2 files changed, 19 insertions(+), 7 deletions(-)
 create mode 100644 channels/exceptions.py

diff --git a/channels/exceptions.py b/channels/exceptions.py
new file mode 100644
index 0000000..3e52699
--- /dev/null
+++ b/channels/exceptions.py
@@ -0,0 +1,16 @@
+class ConsumeLater(Exception):
+    """
+    Exception that says that the current message should be re-queued back
+    onto its channel as it's not ready to be consumd yet (e.g. global order
+    is being enforced)
+    """
+    pass
+
+
+class ResponseLater(Exception):
+    """
+    Exception raised inside a Django view when the view has passed
+    responsibility for the response to another consumer, and so is not
+    returning a response.
+    """
+    pass
diff --git a/channels/handler.py b/channels/handler.py
index e41007e..a32d1af 100644
--- a/channels/handler.py
+++ b/channels/handler.py
@@ -14,6 +14,8 @@ from django.core.urlresolvers import set_script_prefix
 from django.utils import six
 from django.utils.functional import cached_property
 
+from .exceptions import ResponseLater as ResponseLaterOuter
+
 logger = logging.getLogger('django.request')
 
 
@@ -23,13 +25,7 @@ class AsgiRequest(http.HttpRequest):
     dict, and wraps request body handling.
     """
 
-    class ResponseLater(Exception):
-        """
-        Exception that will cause any handler to skip around response
-        transmission and presume something else will do it later.
-        """
-        def __init__(self):
-            Exception.__init__(self, "Response later")
+    ResponseLater = ResponseLaterOuter
 
     def __init__(self, message):
         self.message = message