class DirectoryItemSerializer(serializers.ModelSerializer):

    def create(self, validated_data):
        directoryId = validated_data['directory'].id
        isActive = True
        code = validated_data['code']
        directoryItems = DirectoryItem.objects.filter(directory=directoryId, is_active=isActive, code=code)
        if directoryItems.count() != 0:
            item = directoryItems[0]
            if item.name == validated_data['name'] and item.short_name == validated_data['short_name']:
                raise EntityExistException()
            else:
                item.is_active = False
                item.save()
                return DirectoryItem.objects.create(**validated_data)
        else:
            return DirectoryItem.objects.create(**validated_data)

    class Meta:
        model = DirectoryItem
        fields = '__all__'