def put(self, request, id):
try:
user_id = request.user.id
except:
return Response({"message": "Token is not valid."},
status=status.HTTP_401_UNAUTHORIZED)
serializer = CommentSerializer(data=request.data)
if serializer.is_valid():
if serializer.validated_data['customer'].user_id == user_id:
oldComment = Comment.objects.get(id=id)
serializer = CommentSerializer(oldComment, data=request.data)
if serializer.is_valid():
# update the rating of the product
product = serializer.validated_data['product']
rating = request.data['rating']
rateCounter = len(
Comment.objects.filter(product_id=product.id))
if rateCounter:
product.rating = (rating - oldComment.rating +
product.rating *
(rateCounter)) / rateCounter
else:
product.rating = rating
product.save()
serializer.save()
return Response(serializer.data)
else:
return Response({"message": "Token and user id didn't match"},
status=status.HTTP_401_UNAUTHORIZED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def post(self, request):
try:
user_id = request.user.id
except:
return Response({"message": "Token is not valid."},
status=status.HTTP_401_UNAUTHORIZED)
serializer = CommentSerializer(data=request.data)
if serializer.is_valid():
comment = Comment.objects.filter(
product_id=serializer.validated_data['product'].id,
customer_id=serializer.validated_data['customer'].user_id)
if comment:
return Response({"message": "A comment of you already exists"},
status=status.HTTP_400_BAD_REQUEST)
if serializer.validated_data['customer'].user_id == user_id:
# update the rating of the product
product = serializer.validated_data['product']
rating = request.data['rating']
rateCounter = len(
Comment.objects.filter(product_id=product.id))
if rateCounter:
product.rating = (rating + product.rating *
rateCounter) / (rateCounter + 1)
else:
product.rating = rating
product.save()
serializer.save()
return Response(serializer.data,
status=status.HTTP_201_CREATED)
else:
return Response({"message": "Token and user id didn't match"},
status=status.HTTP_401_UNAUTHORIZED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
def put(self, request, id):
try:
user_id = request.user.id
except:
return Response({"message": "Token is not valid."},
status=status.HTTP_401_UNAUTHORIZED)
serializer = CommentSerializer(data=request.data)
if serializer.is_valid():
if serializer.validated_data['customer'].user_id == user_id:
oldComment = Comment.objects.get(id=id)
serializer = CommentSerializer(oldComment, data=request.data)
if serializer.is_valid():
product = serializer.validated_data['product']
serializer.save()
avg_rating = calculate_rating(product.id)
product.rating = avg_rating
product.save()
return Response(serializer.data)
else:
return Response({"message": "Token and user id didn't match"},
status=status.HTTP_401_UNAUTHORIZED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)