Displaying wrong data after scrolled TableView - swift

Question

I tried to update TableView cell when click cell from CollectionView with key word of class.
For example, when I click "all", it should perform all data.
When I click "a", it should perform class with "a".
It looks like all perfect until I scroll down TableView.
All data display which is not my intension, it should only show specify data even scroll up/down TableView.
Is it related to dequeueReusableCell issue?
I use FMDB to query data when click CollectionView cell.
I attach gif
and hope it could be better to understand my problem.
Can someone help me out with this please? Thanks.
add cellForRow function here.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: cellID, for: indexPath) as! ListTableViewCell
if navigationItem.searchController?.isActive == true{
cell.itemImage.image = searchArray[indexPath.row].thumbnailImage()
cell.nameLBL.text = "name：\(searchArray[indexPath.row].name ?? "")"
cell.quantityLBL.text = "Qty：\(searchArray[indexPath.row].quantity ?? 0)pcs"
cell.amountLBL.text = "amount：\(searchArray[indexPath.row].amount ?? 0)"
cell.dateLBL.text = "date：\(searchArray[indexPath.row].date ?? "")"
cell.storeLBL.text = "store：\(searchArray[indexPath.row].store ?? "")"
cell.classLBL.text = "class：\(searchArray[indexPath.row].itemClass ?? "")"
if let reminder = searchArray[indexPath.row].reminder {
let reminderText = ""
cell.reminderLBL.text = "\(reminder)" + reminderText
reminderStatus = true
}else{
cell.reminderLBL.text = "reminder：NO"
if self.array[indexPath.row].reminder == nil{
cell.reminderLBL.text = "reminder：NO"
}
reminderStatus = false
}
}else{
cell.itemImage.image = array[indexPath.row].thumbnailImage()
cell.nameLBL.text = "name：\(array[indexPath.row].name ?? "")"
cell.quantityLBL.text = "Qty：\(array[indexPath.row].quantity ?? 0)pcs"
cell.amountLBL.text = "amount：\(array[indexPath.row].amount ?? 0)"
cell.dateLBL.text = "date：\(array[indexPath.row].date ?? "")"
cell.storeLBL.text = "store：\(array[indexPath.row].store ?? "")"
cell.classLBL.text = "class：\(array[indexPath.row].itemClass ?? "")"
if let reminder = array[indexPath.row].reminder {
let reminderText = ""
cell.reminderLBL.text = "\(reminder)" + reminderText
reminderStatus = true
}else{
cell.reminderLBL.text = "reminder：NO"
if self.array[indexPath.row].reminder == nil{
cell.reminderLBL.text = "reminder：NO"
}
reminderStatus = false
}
print(array.count)
}
return cell
}
add didSelectItemAt function here.
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
switch indexPath.row {
case 0:
reloadTableViewAndDatabase()
case 1:
reloadTableViewAndDatabase(itemClass: searchStringOfDaily)
case 2:
reloadTableViewAndDatabase(itemClass: searchStringOfCare)
case 3:
reloadTableViewAndDatabase(itemClass: searchStringOfCosmetic)
default:
reloadTableViewAndDatabase()
}
}
And function which may be factor.
let searchStringOfDaily = "SELECT * FROM Data where itemClass = 'a';"
let searchStringOfCare = "SELECT * FROM Data where itemClass = 'b';"
let searchStringOfCosmetic = "SELECT * FROM Data where itemClass = 'c';"
func reloadTableViewAndDatabase()
{
self.dbHelper.searchAllDataFromDatabase { (dataArray) in
self.array = dataArray
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
func reloadTableViewAndDatabase(itemClass:String)
{
self.dbHelper.searchDataFromDatabase(completionHandler: { (dataArray) in
self.array = dataArray
DispatchQueue.main.async {
self.tableView.reloadData()
}
}, search: itemClass)
}
public func searchDataFromDatabase(completionHandler:([Data]) -> (),search:String) {
var searchResultArray:[Data] = []
if self.database == nil{
self.database = FMDatabase(path: self.databasePath)
}
if self.database.open(){
let searchString = search
do{
let resultNext = try self.database.executeQuery(searchString, values: nil)
while resultNext.next(){
let dataName = resultNext.string(forColumn: "name")
let dataQuantity = resultNext.int(forColumn: "quantity")
let dataAmount = resultNext.int(forColumn: "amount")
let dataDate = resultNext.string(forColumn: "date")
let dataStore = resultNext.string(forColumn: "store")
let dataImageName = resultNext.string(forColumn: "imageName")
let dataItemClass = resultNext.string(forColumn: "itemClass")
let dataReminder = resultNext.string(forColumn: "reminder")
let data = Data(name: dataName!, quantity: Int(dataQuantity), amount: Int(dataAmount), date: dataDate!, store: dataStore!, imageName: dataImageName ?? "", reminder: Int(dataReminder!), itemClass: dataItemClass!)
searchResultArray.append(data)
}
print("query success")
}catch{
print(error.localizedDescription)
}
self.database.close()
}
completionHandler(searchResultArray)
}