update README, add example models for tests

README.md

@@ -14,13 +14,26 @@ For example:
 
         revision = RevisionField()
 
+... then
+
+    >>> test_model = TestModel.objects.create()
+    >>>test_model.revision
+    '0.1dev0'
+
+If the source is modified after the git tag was applied:
+
+    >>> test_model = TestModel.objects.create()
+    >>>test_model.revision
+    >>> '0.1dev0-35-ge9f632e:develop:e9f632e92143c53411290b576487f48c15156603'
+
 Reference git information from anywhere in your app:
 
     >>> from django_revision import site_revision
     >>> site_revision.tag
-    '1.0'
+    '0.1dev0'
     >>>site_revision.revision
-    'master:4c9c7f4f40e8db109d2b7b6d234defbe9d065d74'
+    '0.1dev0'
+
 
 For research trial data, we need to track the source code revision at time of data collection. We deploy our source as a git branch and django-revision picks up the tag:branch:commit and updates
 each saved model instance as data is collected.

django_revision/settings.py

@@ -38,7 +38,8 @@
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'django_revision'
+    'django_revision',
+    'example'
 )
 
 MIDDLEWARE_CLASSES = (

django_revision/tests.py

@@ -2,17 +2,10 @@
 from git.exc import InvalidGitRepositoryError
 
 from django.conf import settings
-from django.db import models
 from django.test.testcases import TransactionTestCase
-from django_revision import site_revision, Revision, RevisionField
+from django_revision import site_revision, Revision
 
-
-class TestModel(models.Model):
-
-    revision_field = RevisionField()
-
-    class Meta:
-        app_label = 'django_revision'
+from example.models import TestModel
 
 
 class TestRevision(TransactionTestCase):

example/models.py

@@ -0,0 +1,11 @@
+from django.db import models
+
+from django_revision import RevisionField
+
+
+class TestModel(models.Model):
+
+    revision_field = RevisionField()
+
+    class Meta:
+        app_label = 'example'