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iOS

Posted by nabih safadi
nabih safadi
1,807 Points

iOS swift parse multiple objects update

i have 2 objects(parent , child) with cash and value fields for each object . at pressing a button , it does some calculations and update objects fields to the new values ,I'm able to update the parent fields to the new values but the child values remain as they are.

heres the code :

// calculations

var parentNewCash = cash! - childValue var parentNewValue = value! + childValue
var childNewCash = childCash + (10 * childValue / 100) //update parent fields

var queryParent = PFQuery(className:"_User")

    //get parent ID
    var currentUserId = PFUser.currentUser()?.objectId!


    queryParent.getObjectInBackgroundWithId(currentUserId!) {
        (parent: PFObject?, error: NSError?) -> Void in
        if error != nil {
            println(error)
        } else if let parent = parent {
            parent["cash"] = parentNewCash
            parent["value"] = parentNewValue

             parent.saveInBackground()
        }
    }//end parent query

I'm trying to update child fields like this but its not updating

var queryChild = PFQuery(className:"_User")

     queryChild.getObjectInBackgroundWithId(objectIds[(counter - 1) ]) {
        (child: PFObject?, error: NSError?) -> Void in
        if error != nil {
            println(error)
        } else if let child = child {
            child["cash"] = childNewCash


            child.saveInBackground()
        }
    }//end child query

where objectIds[(counter - 1) ] is the selected user which is the child. if i have to use save all method , please provide me with an example