ios - 解析 : How can I update all rows with the same key value

Question

如何在 Parse 类中更新具有相同键值的所有行？作为我的代码，如果每个用户有 100 个对象，我认为 Parse 会花费我很多钱。还有其他方法吗？

    let username = PFUser.currentUser()?.username
    let objectQuery = PFQuery(className: "FriendList")
    objectQuery.whereKey("username", equalTo: username!)

    objectQuery.findObjectsInBackgroundWithBlock { (friendList:[AnyObject]?, error:NSError?) -> Void in
        if let friendList = friendList as? [PFObject] {
            for myInfo in friendList {
                myInfo["contact"] = contact
                myInfo["portrait"] = PFFile(data: portraitNSData)
                myInfo["company"] = company
                myInfo["position"] = position
                myInfo.save()  // create a request?
            }
        }
    }

Answer 1

形成所需对象的数组，而不仅仅是

PFObject.saveAllInBackground(objectsArray)