add transcript preferences fetch endpoint

edxval/tests/test_views.py

@@ -14,6 +14,7 @@
     EncodedVideo,
     Profile,
     TranscriptCredentials,
+    TranscriptPreference,
     TranscriptProviderType,
     Video,
     VideoTranscript,
@@ -1140,3 +1141,62 @@ def test_successful_fetch(self):
         response = json.loads(response.content.decode('utf-8'))
         self.assertEqual(response['api_key'], credentials_dict['api_key'])
         self.assertEqual(response['api_secret_key'], credentials_dict['api_secret'])
+
+
+class TranscriptPreferencesViewTest(APIAuthTestCase):
+    """
+    Test Suite for TranscriptPreference API view.
+    """
+    COURSE_ID = 'edX/DemoX/Demo_Course'
+    URL_NAME = 'transcript-preferences'
+
+    def setUp(self):
+        super(TranscriptPreferencesViewTest, self).setUp()
+        TranscriptPreference.objects.create(
+            **constants.TRANSCRIPT_PREFERENCES_CIELO24
+        )
+
+    def test_unauthorized_access(self):
+        """
+        Test that if the user is not logged in, the data access is not authorized.
+        """
+        self._logout()
+        url = reverse(self.URL_NAME, kwargs={'course_id': self.COURSE_ID})
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
+
+    def test_forbidden_user_access(self):
+        """
+        Test that if the user is not authorized to get the data, the data access is not allowed.
+        """
+        self._login(unauthorized=True)
+        url = reverse(self.URL_NAME, kwargs={'course_id': self.COURSE_ID})
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
+
+    def test_successful_fetch(self):
+        """
+        Test the preferences are fetched successfully for an existing course.
+        """
+        expected_preferences = constants.TRANSCRIPT_PREFERENCES_CIELO24
+        expected_preferences['three_play_turnaround'] = None
+
+        url = reverse(self.URL_NAME, kwargs={'course_id': self.COURSE_ID})
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        response = json.loads(response.content.decode('utf-8'))
+        # modified is added by serializer and doesn't affect the actual data
+        response.pop('modified')
+
+        self.assertDictEqual(response, constants.TRANSCRIPT_PREFERENCES_CIELO24)
+
+    def test_non_existant_pref_fetch(self):
+        """
+        Verify that preferences aren't fetched against a non-existant course id.
+        """
+        expected_response = {"detail": "Not found."}
+        url = reverse(self.URL_NAME, kwargs={'course_id': self.COURSE_ID+'abc'})
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
+        response = json.loads(response.content.decode('utf-8'))
+        self.assertDictEqual(response, expected_response)

edxval/urls.py

@@ -4,6 +4,7 @@
 
 from __future__ import absolute_import
 
+from django.conf import settings
 from django.conf.urls import url
 
 from edxval import views
@@ -39,5 +40,10 @@
         r'^videos/transcript-credentials/(?P<provider>[\w]*)/(?P<org>[\w]*)$',
         views.TranscriptCredentialsView.as_view(),
         name='transcript-credentials'
+    ),
+    url(
+        r'^videos/transcript-preferences/{}$'.format(settings.COURSE_ID_PATTERN),
+        views.TranscriptPreferenceView.as_view(),
+        name='transcript-preferences'
     )
 ]

edxval/views.py

@@ -22,12 +22,13 @@
     EncodedVideo,
     Profile,
     TranscriptCredentials,
+    TranscriptPreference,
     TranscriptProviderType,
     Video,
     VideoImage,
     VideoTranscript,
 )
-from edxval.serializers import VideoSerializer
+from edxval.serializers import TranscriptPreferenceSerializer, VideoSerializer
 from edxval.utils import TranscriptFormat, validate_generated_images, validate_request_params
 
 LOGGER = logging.getLogger(__name__)
@@ -439,3 +440,40 @@ def get(self, request, provider, org):
             )}
 
         return Response(status=status_code, data=data)
+
+
+class TranscriptPreferenceView(generics.RetrieveAPIView):
+    """
+    Retrieves the transcript preferences for a given course.
+
+    **Example requests**
+
+        GET api/val/v0/videos/transcript-preferences/{course_id}
+
+    **Parameters**
+
+        * course_id(str): course whose preferences are to be fetched
+
+    **Response Values**
+
+        * course_id(str): course id whose preferences are fetched
+
+        * provider(str): transcript provider name
+
+        * cielo24_fidelity(str/None): Cielo24 fidelity choice
+
+        * cielo24_turnaround(str/None): Cielo24 turnaround time choice
+
+        * three_play_turnaround(str/None): 3playMedia turnaround
+
+        * preferred_languages(list): list of languages(str values)
+
+        * video_source_language(str): video language
+
+        * modified(datetime): last modified date
+    """
+    authentication_classes = (JwtAuthentication, SessionAuthentication)
+    permission_classes = (ReadRestrictedDjangoModelPermissions,)
+    lookup_field = "course_id"
+    queryset = TranscriptPreference.objects.all()
+    serializer_class = TranscriptPreferenceSerializer

setup.py

@@ -46,7 +46,7 @@ def load_requirements(*requirements_paths):
     return list(requirements)
 
 
-VERSION = '1.2.7'
+VERSION = '1.2.8'
 
 if sys.argv[-1] == 'tag':
     print("Tagging the version on github:")