old_contents: from django.db import models
  from tx_people import fields
  from tx_people import mixins
  from tx_people.models import Membership
  
  
  class CompensationType(models.Model):
      name = models.CharField(max_length=250)
      description = models.TextField()
      # TODO
      # calculator = models.CharField(choices=constants.AVAILABLE_CALCULATORS)
  
      def __unicode__(self):
          return self.name
  
  
  class Employee(mixins.TimeTrackingMixin, mixins.ReducedDateStartAndEndMixin,
          models.Model):
      """
      # TODO
  
      This uses the tx_people.Membership model to represent the
      relationship between a Person and an Organization.  The Membership
      contains all title information and those Membership instances can
      be a part of a particular Post.
  
      For example, consider Alice President.  She is the President of the
      University of Texas at Sometown, has an annual salary of $100k, and
      was hired in December of 2034.  The following models must be
      created or used to represent that:
  
      ``Person``
          Alice President
      ``Organization``
          University of Sometown
      ``Post``
          For President connected to the ``Organization``
      ``Membership``
          Connecting the ``Person``, ``Organizations`` and the ``Post``
      ``CompensationType``
          Full-Time Employee
      ``Employee``
          Connects to ``Membership``, has a ``start_date`` of ``2034-12``,
          a ``compensation`` of ``100000`` and connected to the
          appropriate ``CompensationType``.
      """
      person = models.ForeignKey(Membership)
      hire_date = fields.ReducedDateField()
      compensation = models.DecimalField(decimal_places=4, max_digits=12)
      compensation_type = models.ForeignKey(CompensationType)
  
new_contents: from django.db import models
  from tx_people import fields
  from tx_people import mixins
  from tx_people.models import Membership
  
  
  class CompensationType(models.Model):
      name = models.CharField(max_length=250)
      description = models.TextField()
      # TODO
      # calculator = models.CharField(choices=constants.AVAILABLE_CALCULATORS)
  
      def __unicode__(self):
          return self.name
  
  
  class Employee(mixins.TimeTrackingMixin, mixins.ReducedDateStartAndEndMixin,
          models.Model):
      """
      # TODO
  
      This uses the tx_people.Membership model to represent the
      relationship between a Person and an Organization.  The Membership
      contains all title information and those Membership instances can
      be a part of a particular Post.
  
      For example, consider Alice President.  She is the President of the
      University of Texas at Sometown, has an annual salary of $100k, and
      was hired in December of 2034.  The following models must be
      created or used to represent that:
  
      ``Person``
          Alice President
      ``Organization``
          University of Sometown
      ``Post``
          For President connected to the ``Organization``
      ``Membership``
          Connecting the ``Person``, ``Organizations`` and the ``Post``
      ``CompensationType``
          Full-Time Employee
      ``Employee``
          Connects to ``Membership``, has a ``start_date`` of ``2034-12``,
          a ``compensation`` of ``100000`` and connected to the
          appropriate ``CompensationType``.
      """
      position = models.ForeignKey(Membership)
      hire_date = fields.ReducedDateField()
      compensation = models.DecimalField(decimal_places=4, max_digits=12)
      compensation_type = models.ForeignKey(CompensationType)
  
subject: Rename this field so it makes more sense