Take advantage of the Model inheritance provided by polymodel.PolyModel to have Club, School, Sponsor, and Organization actually inherit from the Group Model class, rather than being composed via ReferenceProperties. Patch by: Todd Larsen Review by: Pawel Solyga, Sverre Rabbelier, Augie Fackler Review URL: http://codereviews.googleopensourceprograms.com/606

class BaseCreation(object):
    """
    This class encapsulates all backend-specific differences that pertain to
    database *creation*, such as the column types to use for particular Django
    Fields.
    """
    pass