def METHOD_NAME(self):
    if self.sector_code and (self.vocabulary == '1' or self.vocabulary == 'DAC'):
        return codelist_value(codelist_models.Sector, self, 'sector_code')
    elif self.sector_code and (self.vocabulary == '2' or self.vocabulary == 'DAC-3'):
        return codelist_value(codelist_models.SectorCategory, self, 'sector_code')
    elif self.sector_code and self.vocabulary == '7':
        return codelist_value(codelist_models.UNSDGGoals, self, 'sector_code')
    elif self.sector_code and self.vocabulary == '8':
        return codelist_value(codelist_models.UNSDGTargets, self, 'sector_code')
    else:
        return self.sector_code