Backport work of @maurizi (see https://github.com/maurizi/django-async-messages) and add some improvements for Django>=2.0 and python 3.x support.

Author: joehybird

.travis.yml

@@ -1,17 +1,33 @@
 language: python
 python:
   - 2.7
+  - 3.6
+
 env:
-  - DJANGO="django>=1.4,<1.5"
-  - DJANGO="django>=1.5,<1.6"
-  - DJANGO="django>=1.6,<1.7"
-  - DJANGO="django>=1.7,<1.8"
-  - DJANGO="django>=1.8,<1.9"
-  - DJANGO="django>=1.9,<1.10"
-  - DJANGO="django>=1.10,<1.11"
-  - DJANGO="django>=1.11,<2.0"
+  - DJANGO=1.4
+  - DJANGO=1.5
+  - DJANGO=1.6
+  - DJANGO=1.7
+  - DJANGO=1.8
+  - DJANGO=1.9
+  - DJANGO=1.10
+  - DJANGO=1.11
+  - DJANGO=2.0
+
+matrix:
+  exclude:
+    - python: 3.6
+      env: DJANGO=1.4
+    - python: 3.6
+      env: DJANGO=1.5
+    - python: 3.6
+      env: DJANGO=1.6
+    - python: 3.6
+      env: DJANGO=1.7
+    - python: 2.7
+      env: DJANGO=2.0
 install:
-  - pip install $DJANGO
+  - pip install Django==$DJANGO
   - python setup.py develop
 script:
-  - python manage.py test tests
+  - python manage.py test tests

async_messages/middleware.py

@@ -1,19 +1,39 @@
+from distutils.version import StrictVersion
+
 from django.contrib import messages
 
+try:
+    from django.utils.version import get_version
+except ImportError:
+    from django import VERSION as DJANGO_VERSION
+
+    def get_version():
+        return ".".join(str(n) for n in DJANGO_VERSION[:3])
+
 from async_messages import get_messages
 
+if StrictVersion(get_version()) >= StrictVersion("1.10.0"):
+    from django.utils.deprecation import MiddlewareMixin as _MiddlewareBase
+
+    def _is_user_authenticated(user):
+        return bool(user.is_authenticated)
+else:
+    _MiddlewareBase = object
 
-class AsyncMiddleware(object):
+    def _is_user_authenticated(user):
+        return user.is_authenticated()
+
+
+class AsyncMiddleware(_MiddlewareBase):
     # In Django>=1.10 User.is_authenticated is a property, not a method but a
     # strange one : CallbableBool. 
     #  - If default User is used you can use it as a boolean either a method. 
     #  - If this property is overrided you may have a bool instead and an
     #    exception.
-    # Fix it by checking if the property is callable or not. 
+
     def is_authenticated(self, request):
         if hasattr(request, "session") and hasattr(request, "user"):
-            auth = request.user.is_authenticated
-            return auth() if callable(auth) else auth
+            return _is_user_authenticated(request.user)
         else:
             return False
 

setup.py

@@ -2,7 +2,7 @@
 from setuptools import setup, find_packages
 
 setup(name='django-async-messages',
-      version='0.3.1',
+      version='0.3.2',
       url='https://github.com/codeinthehole/django-async-messages',
       author="David Winterbottom",
       author_email="[email protected]",

tests/settings.py

@@ -21,14 +21,25 @@
     'tests'
 ]
 
-MIDDLEWARE_CLASSES = (
-    'django.middleware.common.CommonMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'async_messages.middleware.AsyncMiddleware'
-)
+
+if django.VERSION >= (1, 10):
+    MIDDLEWARE = (
+        'django.middleware.common.CommonMiddleware',
+        'django.contrib.sessions.middleware.SessionMiddleware',
+        'django.middleware.csrf.CsrfViewMiddleware',
+        'django.contrib.auth.middleware.AuthenticationMiddleware',
+        'django.contrib.messages.middleware.MessageMiddleware',
+        'async_messages.middleware.AsyncMiddleware'
+    )
+else:
+    MIDDLEWARE_CLASSES = (
+        'django.middleware.common.CommonMiddleware',
+        'django.contrib.sessions.middleware.SessionMiddleware',
+        'django.middleware.csrf.CsrfViewMiddleware',
+        'django.contrib.auth.middleware.AuthenticationMiddleware',
+        'django.contrib.messages.middleware.MessageMiddleware',
+        'async_messages.middleware.AsyncMiddleware'
+    )
 
 SITE_ID = 1
 

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27-dj{14,18,19,110,111}
+envlist = py27-dj{14,18,19,110,111},py36-dj{18,19,110,111,20}
 
 [testenv]
 deps =
@@ -9,9 +9,10 @@ deps =
     dj19: Django>=1.9,<1.10
     dj110: Django>=1.10,<1.11
     dj111: Django>=1.11,<2.0
+    dj20: Django>=2.0,<2.1
 commands =
     pip install -e .
-    python manage.py test tests
+    python -Wd manage.py test tests
 passenv =
     PYTHONPATH
 usedevelop = True