def get_friends(cls, user_id):
"""返回好友列表"""
db_conf, tb_shard = models.get_db_table(user_id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = 'SELECT `id`, `user_id`, `friend_id`, `created_at` FROM `%s` WHERE `user_id`=%%s' % (tb_name,)
iter = cnn.iter(sql, user_id)
return [cls(**row) for row in iter]
finally:
cnn.close()
