ios - 删除单行解析

Question

我正在尝试从 Parse 中删除一行，但我不知道该怎么做。我有一个 tableView，上面有一些从 Parse 中获取的名称，当我使用 commitEditingStyle 函数时，我想从 Parse 中删除该名称。我写了这段代码，但它不完整，我不知道如何完成它:

if (editingStyle == UITableViewCellEditingStyle.Delete) {
        var friendSelected:String = friendsArray[indexPath.row]
        friendsArray.removeAtIndex(indexPath.row)
        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
        // Remove From Parse

        var tempArrayFriend:[String] = [String]()

        var query = PFQuery(className:"Friend")
        query.whereKey("UserKey", containsString: PFUser.currentUser()?.username)

        query.findObjectsInBackgroundWithBlock {
            (objects: [AnyObject]?, error: NSError?) -> Void in

            for friend in objects! {
                let friendFromParse:String? = (friend as! PFObject)["Friend"] as? String
                // Aggiungo i voti all'array corrispondete
                if friendFromParse != nil {

                    tempArrayFriend.append(friendFromParse!)

                    friend.removeObjectForKey(friendSelected)

            } else {
                // Log details of the failure
            }       
        }    
    }

我想从 Parse 中删除一行，其中键是 PFUser.username!谢谢您，希望您能帮助我!

Answer 1

我认为你让事情变得比需要的复杂得多。试试这个:

if (editingStyle == UITableViewCellEditingStyle.Delete) {
    var friendSelected:String = friendsArray[indexPath.row]
    friendsArray.removeAtIndex(indexPath.row)
    tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
    // Remove From Parse


    var query = PFQuery(className:"Friend")
    query.whereKey("UserKey", containsString: PFUser.currentUser()?.username)

    query.findObjectsInBackgroundWithBlock {
        (objects: [AnyObject]?, error: NSError?) -> Void in
      if error == nil {
        for friend in objects! {
            friend.deleteInBackgroundWithBlock(nil)
        } 
      } else {
            // Log details of the failure
        }       
    }    
}