SQLite doesn't persist data

I'm building an IOS swift app, i've found the need of storing some data in sqlite. I'm using FMDB with objc bridging-header. Everything works fine, no errors show up and the data goes in to the db. But when i shut the app and reload it again the db is empty once more.

func insertUserInLocalDB(userToAdd : User) -> Bool{

    if myDatabase.open() {
        var identifier = userToAdd.userId
        var userName = userToAdd.name
        var nickname = userToAdd.nickname
        var city = userToAdd.city
        var nationality = userToAdd.nationality
        var gender = userToAdd.gender
        var datebirth = userToAdd.datebirth
        var phone = userToAdd.phone
        var photoAvatar = userToAdd.photoAvatar

        if !userToAdd.userId.isEmpty { identifier = userToAdd.userId }else{ identifier = "" }
        if !userToAdd.name!.isEmpty { userName = userToAdd.name! }else{ userName = "" }
        if !userToAdd.nickname!.isEmpty { nickname = userToAdd.nickname! }else{ nickname = "" }
        if userToAdd.city != nil { city = userToAdd.city! }else{ city = "" }
        if userToAdd.nationality != nil { nationality = userToAdd.nationality! }else{ nationality = "" }
        if userToAdd.gender != nil{ gender = userToAdd.gender! }else{ gender = "" }
        if userToAdd.datebirth != nil { datebirth = userToAdd.datebirth! }else{ datebirth = NSDate() }
        if userToAdd.phone != nil { phone = userToAdd.phone! }else{ phone = "" }
        if userToAdd.photoAvatar != nil { photoAvatar = userToAdd.photoAvatar! }else{ photoAvatar = "" }

        let insertSQL = "INSERT INTO Users (identifier,name,nickname,city,nationality,gender,datebirth,phone,photoAvatar) VALUES ('\(identifier)','\(userName!)','\(nickname!)','\(city!)','\(nationality!)','\(gender!)','\(datebirth!)','\(phone!)','\(photoAvatar!)')"

        let result = myDatabase.executeUpdate(insertSQL,
            withArgumentsInArray: nil)

        if !result {
            println("Failed to add contact")
            println("Error: \(myDatabase.lastErrorMessage())")
        } else {
            println("Contact Added")
        }

        myDatabase.close()
        return true
    }
    return false
 }

I'm really losing it with this issue, i've been around this for a week now...

Edit1:

I'm loading the file like this:

    init(databasePath:String){
    self.databasePath = databasePath
    let path = NSBundle.mainBundle().pathForResource(databasePath, ofType:"sqlite")
    self.myDatabase = FMDatabase(path: path)
}