How do I retrieve data by using the Parse PFQuery? - swift

Question

Hi I'm trying to retrive data by using the PFQuery.
loadPosts in the tabelviewController.
My problem is commentsArray.
As you can see... commentsArray is not synchronized other arryas.
Because It has different db's class.
I want get all the data arrays to set the uilabel's text synchronizing
How do I achieve that?
I also had trying to parse's synchronized method. but It is really slow.
Here is my code. This function in the TableViewController.
func loadPosts() {
//STEP 1. Find posts related to people who we are following
let followQuery = PFQuery(className: "fans")
followQuery.whereKey("myfans", equalTo: PFUser.currentUser()!.username!)
followQuery.findObjectsInBackgroundWithBlock ({ (objects:[PFObject]?, error:NSError?) -> Void in
if error == nil {
//clean up
self.followArray.removeAll(keepCapacity: false)
//Appending where people following..
//find related objects
for object in objects! {
self.followArray.append(object.objectForKey("fan") as! String)
}
//append current user to see own posts in feed
self.followArray.append(PFUser.currentUser()!.username!)
//STEP 2. Find posts made by people appended to followArray
let query = PFQuery(className: "posts")
query.whereKey("username", containedIn: self.followArray)
query.limit = self.page
query.addDescendingOrder("createdAt")
query.findObjectsInBackgroundWithBlock({ (objects:[PFObject]?, error:NSError?) -> Void in
if error == nil {
//clean up
self.usernameArray.removeAll(keepCapacity: false)
self.profileArray.removeAll(keepCapacity: false)
self.dateArray.removeAll(keepCapacity: false)
self.postArray.removeAll(keepCapacity: false)
self.descriptionArray.removeAll(keepCapacity: false)
self.uuidArray.removeAll(keepCapacity: false)
//For Test
self.commentsArray.removeAll(keepCapacity: false)
self.isTappedLikeArray.removeAll(keepCapacity: false)
//find related objects
for object in objects! {
self.usernameArray.append(object.objectForKey("username") as! String)
self.profileArray.append(object.objectForKey("profileImg") as! PFFile)
self.dateArray.append(object.createdAt)
self.postArray.append(object.objectForKey("postImg") as! PFFile)
self.descriptionArray.append(object.objectForKey("title") as! String)
self.uuidArray.append(object.objectForKey("uuid") as! String)
//STEP 3.
//Check Comment
let countQuery = PFQuery(className: "comments")
countQuery.whereKey("to", equalTo: object.objectForKey("uuid") as! String)
countQuery.limit = 1
countQuery.addAscendingOrder("createdAt")
countQuery.countObjectsInBackgroundWithBlock({(count:Int32, error:NSError?) -> Void in
//if no any likes are found, else found likes
if count==0 {
self.commentsArray.append("")
}else{
let commentQuery = PFQuery(className: "comments")
commentQuery.whereKey("to", equalTo: object.objectForKey("uuid") as! String)
commentQuery.limit = 1
commentQuery.addDescendingOrder("createdAt")
commentQuery.findObjectsInBackgroundWithBlock({(objects:[PFObject]?, error:NSError?) -> Void in
if error == nil {
//clean up
//find related object
for object in objects!{
let comment = object.objectForKey("comment") as! String
let by = object.objectForKey("username") as! String
let commentString = by + " " + comment
self.commentsArray.append(commentString)
}
//reload tableView & end spinning of refresher
self.tableView.reloadData()
self.refresher.endRefreshing()
}else {
print(error?.localizedDescription)
}
})
}
})
}
} else {
print(error!.localizedDescription)
}
})
} else {
print(error!.localizedDescription)
}
})
}