/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

0 vote132 views1 answer
How to work with django ornm __in
Python Django
1 vote139 views1 answer
Django reverse queryset
Python Django
0 vote133 views1 answer
Styling filter form django
Python Django
1 vote151 views1 answer
Django return only part of string
Python Django
0 vote144 views2 answers
MultiValueDictKeyError django
Python Django
-2 votes150 views6 answers
Django download
Python Django
25 votes258 views2 answers
Create new django app
Python Django
0 vote89 views2 answers
Business logic code where located in django rest framework
Python Django
0 vote144 views1 answer
Make value of two tables unique django
Python Django
3 votes165 views1 answer
Django session expire time
Python Django