This is responsible for building the surrogate id from the model

def get_surrogate_id(self):
        """
        This is responsible for building the surrogate id from the model
        """
        surrogate_id = "%s,%s,%s,%s,%s" % (self.year,
                                           self.quarter,
                                           self.curriculum_abbr.lower(),
                                           self.course_number,
                                           self.section_id.lower())

        return surrogate_id