/Python/Django serializer method field read write

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

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

Similar codes

0 vote280 views1 answer
Using try with finally block
Python
0 vote196 views1 answer
Django save another class data while saving a class
Python
17 votes196 views4 answers
Get ip address python
Python
1 vote222 views1 answer
Python get last item in a list
Python
3 votes190 views5 answers
Get object attributes python
Python
-1 vote237 views1 answer
ImportError: cannot import name 'FieldDoesNotExist' from 'django.db.models.fields' (C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\fields\__init__.py)
Python Django
0 vote278 views1 answer
Django admin readonly models
Python
1 vote191 views1 answer
What is the purpose of the judiciary
Python
1 vote201 views1 answer
Add help text in Django model forms
Python
1 vote200 views2 answers
File C:\Users\7shal\PycharmProjects\Itsa Me Malario\main.py, line 2 from pygame.locals import import ^ SyntaxError: invalid syntax
Python