ORM

Overriding

Rails

class User < ActiveRecord::Base
  def birthdate=(value)
    # do something with value
    super(value)
  end
end
  

Overriding

Django

class User(models.Model):
    _birthdate = models.DateField(db_column="birthdate")

    @property
    def birthdate(self):
        return self._birthdate

    @birthdate.setter
    def birthdate(self, value):
        # do something with value
        self._birthdate = value
  

self(less)

class User:
    def __init__(name, email): # self is missing
        self.name = name
        self.email = email

>>> User(name='Rose Kolodny', email='rose-k@sprawl.net')
    Traceback (most recent call last):
    # ...
    TypeError: __init__() got multiple values for argument 'name'
  

Thank you!