小编Cam*_*oyd的帖子

代码如下.当有删除记录时返回"DELETE 1",没有删除时返回"DELETE 0".但是当它有一个记录时,它实际上并没有删除记录.粘贴到pgAdmin III中的完全相同的SQL(%s替换为tournament_id)删除记录.我在木头/树木阶段.有任何想法吗？

def deletePlayers(tournamentId):
    # takes tournamentId and deletes all records from tournament_player 
    # with that tournamentId 
    # but not an error if no records to delete

    # check tournamentId set if not return
    if tournamentId < 1:
        returnStr = "ERROR - tournamentId not set"
        return returnStr

    DB = connect()
    cur = DB.cursor()

    # delete data
    SQL = "DELETE from tournament_player where tournament_id = %s;"
    data = (tournamentId,)
    cur.execute(SQL, data )
    returnStr = cur.statusmessage …