def selected_book(request):
"""
Returns data for selected book.
"""
validate_api_secret_key(request.data.get('app_key'))
request_serializer = SelectedBookRequest(data=request.data)
if request_serializer.is_valid():
user = get_object_or_404(TheUser, auth_token=request.data.get('user_token'))
book_id = request.data.get('book_id')
rel_objects = Book.get_related_objects_selected_book(request.user, book_id, request.data.get('user_token'))
if rel_objects['book'].private_book and rel_objects['book'].who_added != user:
return Response({}, status=404)
book_rating = rel_objects['avg_book_rating']['rating__avg']
book_rating_count = rel_objects['book_rating_count']
comments = [CommentSerializer(comment).data for comment in rel_objects['comments']]
return Response({'detail': 'success',
'data': {'book': BookSerializer(rel_objects['book']).data,
'is_added_book': bool(rel_objects['added_book']),
'user_reading_count': AddedBook.get_count_added(book_id),
'book_rating': book_rating if book_rating else 0,
'book_rated_count': book_rating_count if book_rating_count else 0,
'comments': comments}},
status=status.HTTP_200_OK)
else:
return invalid_data_response(request_serializer)
