CODEWITHSUNDEEP
swiftparse-platform
biggreentree
biggreentree

Reputation: 1943

How to avoid multiple instances on Parse.com?

This is code from Parse docs. Each time I run it, I have another object created. I just want to create it once, next only update (I.E. position etc, not counter of a game score)

You from Parse, I think it's a simple but common issue, how can I fix it? I suppose I should retrieve the objectId after the first entry, then make a query, but how ?

edit after Wain comment

//MARK: example from parse
    //*******************************************************

    //single PFObject countains: score: 1337, playerName: "Sean Plott", cheatMode: false

    //let's make object

    let kUserDefaultsParseId = "UserDefaultsParseId"
    let KIdGotFromParse: AnyObject? = NSUserDefaults.standardUserDefaults().objectForKey(kUserDefaultsParseId)


    if KIdGotFromParse == nil {

//let firstEntry = "bi4riOeqdA"

    var gameScore = PFObject(className:"GameScore")
    gameScore["score"] = 1337
    gameScore["playerName"] = "Sean Plott"
    gameScore["cheatMode"] = false
    gameScore.saveInBackgroundWithBlock {
        (success: Bool, error: NSError?) -> Void in
        if (success) {
            // The object has been saved.

            var theId = gameScore.objectId

            NSUserDefaults.standardUserDefaults().setObject(theId, forKey: kUserDefaultsParseId)
            NSUserDefaults.standardUserDefaults().synchronize()

        } else {
            // There was a problem, check error.description
        }
    }
    } else {


//        //retrive objects
//        var query = PFQuery(className:"GameScore")
//        query.getObjectInBackgroundWithId(firstEntry) {
//            (gameScore: PFObject?, error: NSError?) -> Void in
//            if error == nil && gameScore != nil {
//                println(gameScore)
//            } else {
//                println(error)
//            }
//        }



    var query = PFQuery(className:"GameScore")
    query.getObjectInBackgroundWithId(theId) {
        (gameScore: PFObject?, error: NSError?) -> Void in
        if error != nil {
            println(error)
        } else if let gameScore = gameScore {
            gameScore["cheatMode"] = true
            gameScore["score"] = 30
            gameScore.saveInBackgroundWithBlock(nil)
        }
    }
    }
    //*******************************************************

Upvotes: 0

Views: 47

Answers (1)

Wain
Wain

Reputation: 119031

Where you have the object has been saved you can get the id and save it somewhere, like user defaults. If you have it saved then query for it, otherwise create a new one and save the id.

Upvotes: 1

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