Store array of String in Realm

user_10037579 0
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I am using realm in my iOS app. In my app, I have made an object file in which, there are some string variables and I have one array also in it. This is my Object class for realm,

class Reminder: Object {
  @objc dynamic var name = ""
  @objc dynamic var done = false
  @objc dynamic var namesArray = [String]()
}

Now in my VC, I am passing an array to the namesArray of my Object class. 

let names : [String] = ["Ali","Hammad","Hamza"]
let textFieldReminder = (alertVC.textFields?.first)! as UITextField
let reminderItem = Reminder()       // (8)
reminderItem.name = textFieldReminder.text!
reminderItem.done = false
reminderItem.namesArray = names

// We are adding the reminder to our database
try! self.realm.write({
            self.realm.add(reminderItem)

Now when I run the app, the application crashes with this error messages,

Terminating app due to uncaught exception 'RLMException', reason: 'Property 'namesArray' is declared as 'NSArray', which is not a

supported RLMObject property type. All properties must be primitives, NSString, NSDate, NSData, NSNumber, RLMArray, RLMLinkingObjects, or subclasses of RLMObject. See https://realm.io/docs/objc/latest/api/Classes/RLMObject.html for more information.'

How can i store array of string in my realm db?

realm swift ios
1 Answers

You cannot store Swift Array to Realm store. Instead of using Array you could make it List<String>. And you can use append(objectsIn:) method.

class Reminder: Object {
  @objc dynamic var name = ""
  @objc dynamic var done = false
  let namesArray = List<String>()
}

Then, simply append new items to the list like this,

let names : [String] = ["Ali","Hammad","Hamza"]
let textFieldReminder = (alertVC.textFields?.first)! as UITextField

let reminderItem = Reminder()       // (8)
reminderItem.name = textFieldReminder.text!
reminderItem.done = false
reminderItem.append(objectsIn: names)
user_6546660
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