xcode - 如何使解析查询同步快速

Question

有什么方法可以使解析查询同步吗？我尝试将查询更改为 findObjects 而不是 findObjectsInBackgroundWithBlock。我似乎无法弄清楚它的语法。有人可以帮我解决这个问题吗？任何帮助表示赞赏。谢谢。

    var messageQuery = PFQuery(className: "Message")

    messageQuery.whereKey("GUID", equalTo: GUID)



    messageQuery.findObjectsInBackgroundWithBlock {

        (objects: [AnyObject]!, error: NSError!) -> Void in

        if error == nil {

            // The find succeeded.
            println("Successfully retrieved \(objects.count) scores.")

            // Do something with the found objects
            if let objects = objects as? [PFObject] {

                for object in objects {

                    println("in loop of objects retrieved")
                    object.delete()

                }

            }

            messages.removeAtIndex(messageIndex)
            //objectIDArr.removeAtIndex(messageIndex)

        }else {

            // Log details of the failure
            println("Error: \(error) \(error.userInfo!)")

        }

    }

Answer 1

您可以调用 findObjects 方法，它返回一个 NSArray。 See the reference on parse

例如:

PFQuery query = PFQuery(classname: "Message")
query.whereKey("GUID", equalTo: GUID)
NSArray messages = query.findObjects()
for message in messages {
    //do whatever you want with your message object
}