4 changed files with 215 additions and 62 deletions
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11apps/api/permissions.py
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4apps/api/views/__init__.py
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139apps/api/views/professor_dashboard.py
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3config/urls.py
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from rest_framework.views import APIView |
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from rest_framework.response import Response |
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from rest_framework.permissions import IsAuthenticated |
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from rest_framework.authentication import TokenAuthentication |
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from django.utils import timezone |
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from datetime import timedelta |
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from django.db.models import Count, Q |
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from django.db.models.functions import TruncDate |
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from apps.account.models import User |
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from apps.course.models import Course, Participant |
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from apps.course.models.course import extract_text_from_json |
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from apps.quiz.models import Quiz, QuizParticipant |
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from apps.chat.models import ChatMessage, RoomMessage |
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from apps.api.permissions import IsProfessorUser |
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class ProfessorDashboardStatsView(APIView): |
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authentication_classes = [TokenAuthentication] |
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permission_classes = [IsAuthenticated, IsProfessorUser] |
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def get(self, request): |
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now = timezone.now() |
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thirty_days_ago = now - timedelta(days=30) |
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# --------------------------------------------------------- |
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# 1. CARDS & BASIC STATS |
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# --------------------------------------------------------- |
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# Total courses taught by this professor |
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courses_count = Course.objects.filter(professor=request.user).count() |
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# Total unique active students enrolled in this professor's courses |
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students_count = Participant.objects.filter( |
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course__professor=request.user, |
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is_active=True |
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).values('student').distinct().count() |
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# Total quizzes created in this professor's courses |
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quizzes_count = Quiz.objects.filter(course__professor=request.user).count() |
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# Chat rooms count (group rooms for professor's courses + private chats with professor) |
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chat_rooms_count = RoomMessage.objects.filter( |
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Q(course__professor=request.user) | |
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(Q(room_type=RoomMessage.RoomTypeChoices.PRIVATE) & (Q(initiator=request.user) | Q(recipient=request.user))) |
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).distinct().count() |
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|
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# --------------------------------------------------------- |
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# 2. CHARTS DATA |
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# --------------------------------------------------------- |
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# Chat Volume Trend (30 days) |
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professor_rooms = RoomMessage.objects.filter( |
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Q(course__professor=request.user) | |
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(Q(room_type=RoomMessage.RoomTypeChoices.PRIVATE) & (Q(initiator=request.user) | Q(recipient=request.user))) |
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) |
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chat_volume = ChatMessage.objects.filter( |
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room__in=professor_rooms, |
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sent_at__gte=thirty_days_ago |
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).annotate( |
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date=TruncDate('sent_at') |
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).values('date').annotate(count=Count('id')).order_by('date') |
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chat_chart = [{"date": item['date'].strftime('%Y-%m-%d'), "messages": item['count']} for item in chat_volume] |
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# Course Efficacy: Completed vs Enrolled (Bar Chart for Top 5 Courses) |
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top_courses_qs = Course.objects.filter(professor=request.user).annotate( |
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participant_count=Count('participants') |
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).order_by('-participant_count')[:5] |
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course_efficacy = [] |
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for course in top_courses_qs: |
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enrolled = course.participant_count |
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completed = Participant.objects.filter( |
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course=course, |
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student__lesson_completions__course_lesson__course=course |
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).distinct().count() |
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title_text = extract_text_from_json(course.title) |
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course_efficacy.append({ |
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"title": title_text[:20] + "..." if len(title_text) > 20 else title_text, |
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"enrolled": enrolled, |
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"completed": completed |
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}) |
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# Quiz Participation statistics (all quizzes of the professor) |
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quizzes = Quiz.objects.filter(course__professor=request.user) |
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quizzes_stats = [] |
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for quiz in quizzes: |
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course = quiz.course |
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if not course: |
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continue |
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total_enrolled = Participant.objects.filter(course=course, is_active=True).count() |
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participated = QuizParticipant.objects.filter(quiz=quiz).values('user').distinct().count() |
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not_participated = max(0, total_enrolled - participated) |
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quizzes_stats.append({ |
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"id": quiz.id, |
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"title": quiz.title, |
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"course_title": extract_text_from_json(course.title), |
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"participated": participated, |
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"not_participated": not_participated, |
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}) |
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# --------------------------------------------------------- |
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# 3. LISTS & LEADERBOARDS |
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# --------------------------------------------------------- |
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# Top Courses List |
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top_courses_list = [ |
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{ |
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"id": c.id, |
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"title": extract_text_from_json(c.title), |
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"participants": c.participant_count |
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} for c in top_courses_qs |
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] |
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# Leaderboard (Top 5 Performing Students in professor's quizzes) |
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top_students = QuizParticipant.objects.filter( |
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quiz__course__professor=request.user |
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).select_related('user').order_by('-total_score', 'total_timing')[:5] |
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leaderboard = [ |
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{"id": s.user.id, "name": s.user.fullname, "score": s.total_score, "time": s.total_timing} |
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for s in top_students |
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] |
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return Response({ |
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"cards": { |
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"courses_count": courses_count, |
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"students_count": students_count, |
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"quizzes_count": quizzes_count, |
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"chat_rooms_count": chat_rooms_count, |
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}, |
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"charts": { |
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"chat_volume": chat_chart, |
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"course_efficacy": course_efficacy, |
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"quizzes_stats": quizzes_stats |
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}, |
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"lists": { |
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"top_courses": top_courses_list, |
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"leaderboard": leaderboard |
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} |
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}) |
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