HealthDiaryBackend/apps/indicator/serializers.py

from rest_framework import serializers, status
from rest_framework.exceptions import ValidationError

from apps.indicator.models import Indicator
from apps.indicatortype.models import IndicatorType
from apps.patient.models import Patient


class IndicatorSerializer(serializers.ModelSerializer):
    class Meta:
        model = Indicator
        fields = '__all__'
        extra_kwargs = {
            'observing': {'required': False}
        }

    def create(self, validated_data):
        user = self.context['request'].user
        validated_data['observing'] = user
        indicator = Indicator(**validated_data)
        indicator.save()
        return indicator