def deleteRegion(region_id):
    validationRegionID(region_id)
    RegionDao.deleteRecord(region_id)
def getRegionByID(region_id):
    validationRegionID(region_id)
    return RegionDao.getRegionByID(region_id)
def updateRegion(region_id, name):
    validationRegionID(region_id)
    validationRegionName(name)
    RegionDao.updateRegion(region_id, name)