added "due" field to CourseContentDetail

lms/djangoapps/api_manager/courses/tests.py

@@ -48,6 +48,7 @@ class CoursesApiTests(TestCase):
             category="chapter",
             parent_location=self.course.location,
             data=self.test_data,
+            due="2014-05-16T14:30:00Z",
             display_name="Overview"
         )
 

lms/djangoapps/api_manager/courses/views.py

@@ -98,6 +98,9 @@ def _serialize_content(request, course_id, content):
         content_uri = '{}/content/{}'.format(content_uri, content_id)
     data['uri'] = content_uri
 
+    if hasattr(content, 'due'):
+        data['due'] = content.due
+
     return data