Django RF, validation of input data in view layer - django

Question

I wanted to get the date or tablerequireDate argument from the POST requests, how do I achieve in the below view layer ?
VIEWS.PY
class Tablecreateview(generics.CreateAPIView):
queryset = Tables.objects.all()
serializer_class = Tableserializer
def perform_create(self, serializer):
request_user = self.request.user
serializer.save(author=request_user)
MODELS.PY
class Tables(models.Model):
tablerequiretime = models.TimeField()
tablerequireDate = models.DateField()
created = models.DateTimeField(auto_now=True)
updatedat = models.DateTimeField(auto_now_add=True)
foodliketoeat = models.CharField(max_length=200)
totalpersons = models.PositiveIntegerField(
default=0, validators=[MinValueValidator(0), MaxValueValidator(20)])
author = models.ForeignKey(
settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
def __str__(self):
return self.author.username
SERIALIZERS.PY
class Tableserializer(serializers.ModelSerializer):
class Meta:
model = Tables
exclude=('author',)

Answer 1

Okay you can access this field before perform_create takes place
class Tablecreateview(generics.CreateAPIView):
queryset = Tables.objects.all()
serializer_class = Tableserializer
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
tablerequireDate = serializer.data['tablerequireDate']
# Do you magic then perform creation
self.perform_create(serializer)
headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)
Another Round of a solution
class Tableserializer(ModelSerializer):
class Meta:
model = Tables
exclude=('author',)
def validate_tablerequireDate(self, data):
try:
# do validation
except ValidationError:
raise Validation.....
else:
return validated_data