Swift Firestore - TableView Button Bug - ios

Question

Please look at my TableView with custom Cell here. I fetched the data from Firestore (and sort it by date descendingly) real time and insert it into the meal array locally. When I clicked the 'eat' button and add a new meal, the 'eat' button isn't sorted correctly?
Here is my code for loadMenu() function and eatButtonPressed() function
loadMenu()
func loadMenu() {
let menuRef = db.collection("menu").document()
db.collection("menu").order(by: "date", descending: true).whereField("family_id", isEqualTo: "\(UserDefaults.standard.string(forKey: "family_id")!)")
.addSnapshotListener { querySnapshot, error in
self.menu = []
guard let documents = querySnapshot?.documents else {
print("Error fetching documents: \(error!)")
return
}
let name = documents.map { $0["name"] ?? [""] }
let family_id = documents.map { $0["family_id"] ?? [0] }
let portions = documents.map { $0["portions"] ?? [""] }
let menu_id = documents.map { $0["menu_id"] ?? [""]}
let isOpened = documents.map { $0["isOpened"] ?? [""]}
if name != nil || name[0] as! String != "" {
for i in 0..<name.count {
self.menu.append(Menu(menu_id: menu_id[i] as! String, name: name[i] as! String, family_id: family_id[i] as! String, portions: portions[i] as! Int, isOpened: isOpened[i] as! Bool))
}
}
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
eatButtonPressed()
func eatButtonPressed(cell: TopPartTableViewCell, send: UIButton) {
var likeRef = self.db.collection("like").document("\(Auth.auth().currentUser!.uid)_\(self.menu[send.tag].menu_id)")
self.db.collection("dislike").document("\(Auth.auth().currentUser!.uid)_\(self.menu[send.tag].menu_id)").delete() { err in
if let err = err {
print("Error removing document: \(err)")
} else {
print("Document successfully removed!")
}
}
likeRef.getDocument { (document, error) in
if let document = document, document.exists {
let dataDescription = document.data().map(String.init(describing:)) ?? "nil"
self.db.collection("like").document("\(Auth.auth().currentUser!.uid)_\(self.menu[send.tag].menu_id)").delete() { err in
if let err = err {
print("Error removing document: \(err)")
} else {
print("Document successfully removed!")
}
}
} else {
likeRef.setData([
"like_id": "\(likeRef.documentID)",
"user_id": "\(Auth.auth().currentUser!.uid)",
"menu_id": "\(self.menu[send.tag].menu_id)"
]) { err in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Document successfully written!")
}
}
}
}
let user_liked = like.contains(where: {$0.menu_id == menu[send.tag].menu_id}) && like.contains(where: {$0.user_id == Auth.auth().currentUser!.uid})
if !user_liked {
send.backgroundColor = UIColor(named: "BrandOrange")
send.tintColor = UIColor.white
cell.dontEatButton.backgroundColor = UIColor.white
cell.dontEatButton.tintColor = UIColor.black
} else {
send.backgroundColor = UIColor.white
send.tintColor = UIColor.black
}
}
Anyone can help me solve this problem?
Thank you.

Answer 1

The above method doesn't seem to be relevant to the question.
You have added a new item and a cell has been added for that item.
If you look at the detailed structure of the cell, I think you can figure out the cause.
If the cell default button state is Eat, it is most likely not initialized properly.