'Represent a Request Item
@ToDo: Migrate to S3Represent'

@staticmethod
def req_item_represent(id, row=None):

    if row:
        id = row.id
    elif (not id):
        return current.messages['NONE']
    db = current.db
    ritable = db.req_req_item
    sitable = db.supply_item
    query = ((ritable.id == id) & (ritable.item_id == sitable.id))
    record = db(query).select(sitable.name, limitby=(0, 1)).first()
    if record:
        return record.name
    else:
        return None
