Table View Not ReloadData after Unfollow User swift - ios

Question

I am using firebase when I follow user his post show up nicely in the UITableView . but when unfollow him , his post still in the UITableView. UITableView not reloading data after unfollow.
View Controller :
import UIKit
import SVProgressHUD
import SDWebImage
class HomeVC: UIViewController {
#IBOutlet weak var tableViewOutLet: UITableView!
#IBOutlet weak var activityIndicatorView: UIActivityIndicatorView!
var postContentArray = [Post]() // contine all Posts .
var userContentArray = [UserModel]()
override func viewDidLoad() {
super.viewDidLoad()
tableViewOutLet.dataSource = self
tableViewOutLet.estimatedRowHeight = 521
tableViewOutLet.rowHeight = UITableView.automaticDimension
loadPosts()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.tabBarController?.tabBar.isHidden = false
}
#objc func loadPosts () {
// activityIndicatorView.startAnimating()
API.Feed.ObserveFeedWithMyPostAndFollowerPost(withid: API.User.Curren_User!.uid) { (postr) in
self.fetchUserInfo(PostUserID: postr.userPostId!, Completed: {
self.postContentArray.append(postr)
// self.activityIndicatorView.stopAnimating()
self.tableViewOutLet.reloadData()
})
}
API.Feed.ObserveFeedReomved(withid: API.User.Curren_User!.uid) { (key) in
// print(key)
self.postContentArray = self.postContentArray.filter {$0.userPostId != key }
self.tableViewOutLet.reloadData()
}
}
#objc func fetchUserInfo (PostUserID : String , Completed : #escaping ()-> Void) {
API.User.observeUserInformation(CommentUserID: PostUserID) { (User) in
self.userContentArray.append(User)
Completed()
}
}
#IBAction func logOutButton(_ sender: Any) {
AuthServices.logout(OnSuccess: {
SVProgressHUD.showSuccess(withStatus: "تم تسجيل الخروج")
let storyBoard = UIStoryboard(name: "Start", bundle: nil)
let signInvc = storyBoard.instantiateViewController(withIdentifier: "SignInVC")
self.present(signInvc, animated: true, completion: nil)
}) { (error) in
SVProgressHUD.showError(withStatus: error)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "commentIconSequeToCommentPage" {
let commentvc = segue.destination as! CommentsVC
commentvc.postID = sender as? String
}
}
}
extension HomeVC: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return postContentArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! HomeTableViewCell
let postContent = postContentArray[indexPath.row]
let userContent = userContentArray[indexPath.row]
cell.postContent = postContent
cell.userContentInfo = userContent
cell.homeView = self
return cell
}
}
Observe Functions :
import Foundation
import FirebaseDatabase
class FeedAPI {
var REF_FEED = Database.database().reference().child("Feed")
func ObserveFeedWithMyPostAndFollowerPost (withid id : String , complation : #escaping (Post)->Void) {
REF_FEED.child(id).observe(DataEventType.childAdded) { (snapshto : DataSnapshot) in
let key = snapshto.key
API.Post.observePostFuntion(withID: key, Complation: { (post) in
complation(post)
})
}
}
func ObserveFeedReomved (withid id : String , complation : #escaping (String)->Void) {
REF_FEED.child(id).observe(DataEventType.childRemoved) { (snapshot : DataSnapshot) in
let key = snapshot.key
complation(key)
}
}
}

Answer 1

where exactly is the unfollow function?
Also you should set the tableview delegate
override func viewDidLoad() {
tableViewOutLet.delegate = self
}
Please show where exactly are you preforming the unfollow function.

Answer 2

my follow And unfollow func
class FollowAPI {
var REF_FOLLOWERS = Database.database().reference().child("Follower")
var REF_FOLLOWING = Database.database().reference().child("Following")
func followAction (withId id : String) {
API.Follow.REF_FOLLOWERS.child(id).child(API.User.Curren_User!.uid).setValue(true)
API.Follow.REF_FOLLOWING.child(API.User.Curren_User!.uid).child(id).setValue(true)
API.myPOSTS.REF_MYPOSTS.child(id).observeSingleEvent(of: DataEventType.value) { (snapshot : DataSnapshot) in
print(snapshot.key)
if let dic = snapshot.value as? [String : Any]{
for key in dic.keys {
API.Feed.REF_FEED.child(API.User.Curren_User!.uid).child(key).setValue(true)
}
}
}
}
func UnFollowAction (withid id : String) {
API.Follow.REF_FOLLOWERS.child(id).child(API.User.Curren_User!.uid).setValue(NSNull())
API.Follow.REF_FOLLOWING.child(API.User.Curren_User!.uid).child(id).setValue(NSNull())
API.myPOSTS.REF_MYPOSTS.child(id).observeSingleEvent(of: DataEventType.value) { (snapshot : DataSnapshot) in
print(snapshot.key)
if let dic = snapshot.value as? [String : Any]{
for key in dic.keys {
API.Feed.REF_FEED.child(API.User.Curren_User!.uid).child(key).removeValue()
}
}
}
}
func isFollwoing (userid : String , Complated : #escaping (Bool)->Void) {
REF_FOLLOWERS.child(userid).child(API.User.Curren_User!.uid).observeSingleEvent(of: .value) { (snapshot ) in
if let _ = snapshot.value as? NSNull {
Complated(false)
} else {
Complated(true)
}
}
}
}