feat: add endpoint and update api

edxval/api.py

@@ -733,6 +733,51 @@ def get_videos_for_course(course_id, sort_field=None, sort_dir=SortDirection.asc
     )
 
 
+def get_transcript_details_for_course(course_id):
+    """
+    Returns an iterator of video transcript details given a course id.
+
+    Args:
+        course_id (String)
+
+    Returns:
+        (dict): Returns all the edx_video_id's and related transcript details for a course
+        {
+        'edx_video_id': {
+            'lang_code': {
+                'provider': 'What the provider is',
+                'content': 'Content of the transcript',
+                'file_format': 'file format',
+                'url': 'location of the file',
+                'name': 'name of the file',
+                'size': size of the file
+            }
+        }
+    """
+    course_transcripts_data = {}
+
+    course_videos = CourseVideo.objects.filter(course_id=course_id).select_related('video')
+    for course_video in course_videos:
+
+        edx_video_id = course_video.video.edx_video_id
+        transcript_data = {}
+
+        video_transcripts = VideoTranscript.objects.filter(video=course_video.video)
+        for video_transcript in video_transcripts:
+            transcript_data[video_transcript.language_code] = {
+                'provider': video_transcript.provider,
+                'content': video_transcript.transcript.file.read(),
+                'file_format': video_transcript.file_format,
+                'url': video_transcript.transcript.url,
+                'name': video_transcript.transcript.name,
+                'size': video_transcript.transcript.size,
+            }
+
+        course_transcripts_data[edx_video_id] = transcript_data
+
+    return course_transcripts_data
+
+
 def remove_video_for_course(course_id, edx_video_id):
     """
     Soft deletes video for particular course.

edxval/urls.py

@@ -19,6 +19,9 @@
     path('videos/missing-hls/', views.HLSMissingVideoView.as_view(),
          name='hls-missing-video'
          ),
+    path('videos/video-transcripts/<str:course_id>/', views.CourseTranscriptsDetailView.as_view(),
+         name='video-transcripts'
+         ),
     path('videos/video-transcripts/create/', views.VideoTranscriptView.as_view(),
          name='create-video-transcript'
          ),

edxval/views.py

@@ -14,7 +14,7 @@
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
-from edxval.api import create_or_update_video_transcript
+from edxval.api import create_or_update_video_transcript, get_transcript_details_for_course
 from edxval.models import (
     LIST_MAX_ITEMS,
     CourseVideo,
@@ -175,6 +175,24 @@ def post(self, request):
         return response
 
 
+class CourseTranscriptsDetailView(APIView):
+    """
+    A view to get the details for all the course transcripts related to a course_id.
+    """
+    authentication_classes = (JwtAuthentication, SessionAuthentication)
+
+    def get(self, _request, course_id):
+        """
+        Returns all transcript data for a course when given a course_id.
+        """
+        course_data = get_transcript_details_for_course(course_id)
+
+        if not course_data:
+            return Response(status=status.HTTP_400_BAD_REQUEST, data={'message': 'course_id param required'})
+
+        return Response(status=status.HTTP_200_OK, data=course_data)
+
+
 class VideoStatusView(APIView):
     """
     A Video View to update the status of a video.