[Answered ]-Get the username from user ID in django models

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You can add to serializer two field user_id and user_name. And specify write_only and read_only arguments to use user_id only for POST or PUT and user_name for GET requests:

class MemberSerializer(serializers.ModelSerializer):
    user = serializers.PrimaryKeyRelatedField(write_only=True)
    user_name = serializers.CharField(source='user.username', read_only=True)

    class Meta:
        fields = ('user', 'user_name')
👤neverwalkaloner

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