Save and get details of Model class using userdefault - swift

Question

I have one model object User and inside that another model object is Picture.
"user": {
"id": 1,
"email": "abc.k#gmail.com",
"user_profile_photo": {
"id": 997,
"user_id": 1,
"photo_url": "https://newproduction.s3.amazonaws.com/profile_image/RkUJAczv5nWpUyFTgyTgMLChR.jpeg",
}
}
I have two model class for this one is User and another is Picture inside user.
I am saving model user in userdefault as below
//Get Response
loginResponseObj = Mapper<LoginResponse>().map(JSONObject:(response.result.value))
//Save user Details
let userData = loginResponseObj.user!
let data = NSKeyedArchiver.archivedData(withRootObject: userData)
UserDefaults.standard.set(data, forKey:"user")
and when i am trying to get data from userdefaults, am getting User Model but inside details are nil.
Get Userdetails from userdefault Code is below
guard let data = UserDefaults.standard.object(forKey: "user") as? Data
else
{
return UserModel()
}
return (NSKeyedUnarchiver.unarchiveObject(with: data) as? UserModel)!
This return **<ABC.User: 0x7f84f740c440>**
But when i am trying to get Picture from User it return nil
In User Model
class User:NSObject,Mappable,NSCoding{
var email: String?
var picture: Picture?
required init?(coder aDecoder: NSCoder) {
self.email = aDecoder.decodeObject(forKey: "email") as? String
}
func initWithCoder(aDecoder:NSCoder) -> UserModel
{
self.email = aDecoder.decodeObject(forKey: "email") as? String
return self
}
func encode(with aCoder: NSCoder) {
aCoder.encode(email, forKey: "email")
}
}
In Picture Model
class Picture:Mappable,NSCoding{
var id: String?
var photoURL: String?
required init?(coder aDecoder: NSCoder) {
self.id = aDecoder.decodeObject(forKey: "id") as? String
self.photoURL = aDecoder.decodeObject(forKey: "photoURL") as? String
}
func initWithCoder(aDecoder:NSCoder) -> Picture
{
self.id = aDecoder.decodeObject(forKey: "id") as? String
self.photoURL = aDecoder.decodeObject(forKey: "photoURL") as? String
return self
}
func encode(with aCoder: NSCoder) {
aCoder.encode(id, forKey: "id")
}
}
Note: I am using MVVM Pattern and Object Mapper
So, How can i get the whole details of user including photo_url (User.Picture.photo_url) ?

Answer 1

In User Model
class User:NSObject,Mappable,NSCoding{
var email: String?
var picture: Picture?
required init?(coder aDecoder: NSCoder) {
self.email = aDecoder.decodeObject(forKey: "email") as? String
self.picture = aDecoder.decodeObject(forKey: "picture") as? Picture
}
func initWithCoder(aDecoder:NSCoder) -> UserModel
{
self.email = aDecoder.decodeObject(forKey: "email") as? String
self.picture = aDecoder.decodeObject(forKey: "picture") as? Picture
return self
}
func encode(with aCoder: NSCoder) {
aCoder.encode(email, forKey: "email")
aCoder.encode(picture, forKey: "picture")
}
}
In Picture Model
class Picture: NSObject,Mappable,NSCoding {
var id: String?
var photoURL: String?
required init?(coder aDecoder: NSCoder) {
self.id = aDecoder.decodeObject(forKey: "id") as? String
self.photoURL = aDecoder.decodeObject(forKey: "photoURL") as? String
}
func initWithCoder(aDecoder:NSCoder) -> Picture
{
self.id = aDecoder.decodeObject(forKey: "id") as? String
self.photoURL = aDecoder.decodeObject(forKey: "photoURL") as? String
return self
}
func encode(with aCoder: NSCoder) {
aCoder.encode(id, forKey: "id")
aCoder.encode(photoURL, forKey: "photoURL")
}
Get Details From User Defaults
guard let data = UserDefaults.standard.object(forKey: "user") as? Data
else
{
return User()
}
return (NSKeyedUnarchiver.unarchiveObject(with: data) as? User)!
above code will return User Model
Using this model access its variables
print(user.email)
print(user.picture.photoURL)