add time_taken and submitted_datetime

Author: rockstarr-programmerr

classroom/business/all/student_report.py

@@ -1,3 +1,5 @@
+from datetime import timedelta
+
 from .band_score import BAND_SCORE_MAPPER
 
 
@@ -19,6 +21,9 @@ def make(self, exercise_pk=None, detail=True):
 
             if submission:
                 report['submitted'] = True
+                report['time_taken'] = submission.time_taken
+                report['submit_datetime'] = submission.submit_datetime
+
                 questions = exercise.questions.all().prefetch_related('answers')
                 answers = submission.answers.all()
 
@@ -50,6 +55,8 @@ def make(self, exercise_pk=None, detail=True):
     def new_report(exercise):
         return {
             'exercise': exercise,
+            'time_taken': timedelta(seconds=0),
+            'submit_datetime': None,
             'passage_1_total': 0,
             'passage_2_total': 0,
             'passage_3_total': 0,

classroom/serializers/classroom.py

@@ -87,6 +87,8 @@ class StudentReadingReportSerializer(serializers.Serializer):
     show_detail = serializers.BooleanField(write_only=True, default=True)
 
     exercise = _ExerciseSerializer(read_only=True)
+    time_taken = serializers.DurationField(read_only=True)
+    submit_datetime = serializers.DateTimeField(read_only=True)
     passage_1_total = serializers.IntegerField(read_only=True)
     passage_2_total = serializers.IntegerField(read_only=True)
     passage_3_total = serializers.IntegerField(read_only=True)