Tastypie Example

gistfile1.py

class Foo(object):
  @property
  def acct_num(self):
    # perform action on another db field to get the acct_num
 
  @acct_num.setter
  def acct_num(self, value):
    # operate on value and then set to db field
 
# Now in my Resource file
acct_num = fields.CharField(attribute='acct_num')