Fix null values on Token modified field.

awx/main/migrations/0043_v330_oauth2accesstoken_modified.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.11 on 2018-07-10 14:02
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('main', '0042_v330_org_member_role_deparent'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='oauth2accesstoken',
+            name='modified',
+            field=models.DateTimeField(editable=False),
+        ),
+    ]

awx/main/models/oauth.py

@@ -112,6 +112,10 @@ class OAuth2AccessToken(AbstractAccessToken):
         default='write',
         help_text=_('Allowed scopes, further restricts user\'s permissions. Must be a simple space-separated string with allowed scopes [\'read\', \'write\'].')
     )
+    modified = models.DateTimeField(
+        editable=False,
+        auto_now=True
+    )
 
     def is_valid(self, scopes=None):
         valid = super(OAuth2AccessToken, self).is_valid(scopes)
@@ -119,4 +123,3 @@ class OAuth2AccessToken(AbstractAccessToken):
             self.last_used = now()
             self.save(update_fields=['last_used'])
         return valid
-

awx/main/tests/functional/api/test_oauth.py

@@ -126,7 +126,7 @@ def test_oauth_token_create(oauth_application, get, post, admin):
         reverse('api:o_auth2_application_token_list', kwargs={'pk': oauth_application.pk}),
         {'scope': 'read'}, admin, expect=201
     )
-    assert 'modified' in response.data
+    assert 'modified' in response.data and response.data['modified'] is not None
     assert 'updated' not in response.data
     token = AccessToken.objects.get(token=response.data['token'])
     refresh_token = RefreshToken.objects.get(token=response.data['refresh_token'])