/Python/Django/Django serializer method field read write

Django serializer method field read write

class ProjectSerializer(serializers.ModelSerializer):
    contract_price = WritableSerializerMethodField(deserializer_field=serializers.DecimalField(max_digits=12, decimal_places=2))

    def get_contract_price(self, project):
        return project.contract_price

    def set_contract_price(self, value):
        return value

Source: stackoverflow.com

Django serializer method field read write

class WritableSerializerMethodField(serializers.SerializerMethodField):
    def __init__(self, **kwargs):
        self.setter_method_name = kwargs.pop('setter_method_name', None)
        self.deserializer_field = kwargs.pop('deserializer_field')

        super().__init__(**kwargs)

        self.read_only = False

    def bind(self, field_name, parent):
        retval = super().bind(field_name, parent)
        if not self.setter_method_name:
            self.setter_method_name = f'set_{field_name}'

        return retval

    def get_default(self):
        default = super().get_default()

        return {
            self.field_name: default
        }

    def to_internal_value(self, data):
        value = self.deserializer_field.to_internal_value(data)
        method = getattr(self.parent, self.setter_method_name)
        return {self.field_name: self.deserializer_field.to_internal_value(method(value))}

Source: stackoverflow.com

Similar codes

1 vote345 views1 answer
Django foreign key error Cannot assign must be a instance
Python Django
1 vote322 views1 answer
Make new app folder in django templates dir
Python Django
0 vote328 views1 answer
What is *args and **kwargs in django
Python Django
5 votes332 views1 answer
How to override save method in django
Python Django
-4 votes285 views4 answers
Latest version of django
Python Django
0 vote318 views1 answer
Create jwt token in django
Python Django
0 vote356 views1 answer
Django create username and password from csv
Python Django
2 votes313 views2 answers
Django request.data
Python Django
0 vote322 views1 answer
Abstract user in django
Python Django
0 vote371 views1 answer
Code suggestion html not working in django-html
Python Django