Change some variable in serializer rest api in mqtt application

I have a problem with adding some new variables to the serializer data that comes from the MQTT application.

class Log (models.Model):
LID = models.ForeignKey(‘New_device’, on_delete=models.CASCADE)
DevID = models.IntegerField(null=False, default=0)
TIME = models.IntegerField(null=False)
CODE = models.IntegerField(default=0)
COMPRESSOR_STATUS = models.IntegerField(default=0)
DEFORST_STATUS = models.IntegerField(default=0)
FAN_STATUS = models.IntegerField(default=0)
ERROR_STATUS = models.IntegerField(default=0)
VOLTAGE = models.IntegerField(default=0)
CURRENT = models.IntegerField(default=0)
SP = models.IntegerField(default=0)
PB1 = models.IntegerField(default=0)
PB2 = models.IntegerField(default=0)
PB3 = models.IntegerField(default=0)
PB4 = models.IntegerField(default=0)
ECO = models.IntegerField(default=0)
IO2 = models.IntegerField(default=0)
def str(self):
return f"{, self.CODE, self.TIME, self.PB1, self.PB2, self.PB3, self.PB4}"

class LogForm(forms.ModelForm):
class Meta:
model = Log
“SP”, “PB1”, “PB2”, “PB3”, “PB4”, “ECO”, “IO2”)

from rest_framework import serializers
from .models import Log
class LogSerializer(serializers.ModelSerializer):
class Meta:
model = Log

and our

class LogItemViews(APIView):
def post(self, request):
serializer = LogSerializer(
devid = request.GET[‘DevID’]
Log.DevID = devid
id = New_Device.objects.filter(serial_number=devid).values_list(‘id’, flat=True)[0]
Log.LID_id = id
if serializer.is_valid():
get_code =[‘CODE’]
if get_code > “1600”:
print (get_code, “A message has sent”)
return (send_sms(‘hello’, ‘phone number’))

        return Response({"status": "success", "data":}, status=status.HTTP_200_OK)
        return Response({"status": "error", "data": serializer.errors}, status=status.HTTP_400_BAD_REQUEST)

def get(self, request, id=None):
    if id:
        item = Log.objects.get(id=id)
        serializer = LogSerializer(item)
        return Response({"status": "success", "data":}, status=status.HTTP_200_OK)

    items = Log.objects.all()
    serializer = LogSerializer(items, many=True)
    return Response({"status": "success", "data":}, status=status.HTTP_200_OK)

#In our scenario, we get JSON packages from the MQTT broker. We can save them in our DB without any problems but when we want to add new variables like LID(it is a foreign key to another DB Model that we want to fill from the backend) and DevID( which received it through the payload of MQTT Code) we got errors.
So I want to know if anybody can help me for finding a valuable solution for it.
Frankly, I have some idea but nothing of them were facilitated.

Hello @Asho1988 !
I’ll be glad to help you. Just remember there is a “Preformatted text”, so we can see more clearly the code.
Also, didn’t find the description of the problem. I read you had troubles updating some fields within your DB, but you should describe deeply what the problem is and the cases this error is present. Please, describe it and paste the error you’re seeing.