问是否在X小时后从Realm中删除所有数据？

EN

class DateData: Object {
 @objc dynamic var date: String = ""

 func dateToString(_ date : Date) -> String{
    let calendar = Calendar.current
    let day = calendar.component(.day, from: date)
    let month = calendar.component(.month, from: date)
    let year = calendar.component(.year, from: date)
    let hour = calendar.component(.hour, from: date)
    let minutes = calendar.component(.minute, from: date)
    let datetime = "\(day)/\(month)/\(year) \(hour):\(minutes)"
    
    return datetime
 }

 func stringToDate(_ date : String) -> Date{
    let formatter = DateFormatter()
    formatter.dateFormat = "dd/MM/yyyy HH:mm"
    
    let newDate = formatter.date(from: date)
    return newDate!
 }
}

let k = K()
if NetworkMonitor.shared.isConnected {
        print("Online mode")
        realmDB.deleteAllData()
        realmDB.addCurrentConnectionDateTime()
        // Code to execute when connected
    }else{
        print("Offline mode")
        let today = Date()
        let date = realmDB.getLastConnecionDate()
        print(today.timeIntervalSince(date))
        if today.timeIntervalSince(date) > (k.connectionHours * 3600) {
            realmDB.deleteAllData()
        }else{
            // Load data from Realm
        }
    }
}

struct RealmDatabase {

let realm = try! Realm()


//MARK: - Add current DateTime connection to Realm

func addCurrentConnectionDateTime(){
    let date = Date()
    let d: DateData = DateData()
    let dateString: String = d.dateToString(date)
    d.date = dateString
    // Update last connection with the new one
    try! realm.write{
        try! realm.delete(Realm().objects(DateData.self))
        realm.add(d)
    }
}

//MARK: - Get last connection DateTime
func getLastConnecionDate() -> Date {
    var newLastDate = Date()
    let lastDate = realm.objects(DateData.self)
    newLastDate = DateData().stringToDate(lastDate[0].date)
    
    return newLastDate
}

//MARK: - Delete all data from the Realm

func deleteAllData(){
    try! realm.write{
        try! realm.delete(Realm().objects(Movie.self))
        try! realm.delete(Realm().objects(Genre.self))
        try! realm.delete(Realm().objects(Review.self))
    }
}}