An extension on RealmCocoa which enables Swift native types to be saved in Realm

by iOS Example

Unrealm

Unrealm enables you to easily store Swift native Classes, Structs and Enums into Realm .
Stop inheriting from Object! Go for Protocol-Oriented programming!
Made with by arturdev


Features

Unrealm support the following types:

  • [x] Swift Primitives
  • [x] Swift Structs
  • [x] Swift Classes
  • [x] Swift Enums
  • [x] Swift Arrays
  • [x] Swift Dictionaries
  • [x] Swift Optionals (String, Data, Date)
  • [x] Nested Classes/Structs
  • [ ] Swift Optionals of primitives (Int, Double, etc..)

Example Project

To run the example project, clone the repo, and run pod install from the Example directory first.

See also Unit Tests.

Usage

All you have to do is

  1. Conform your Classes/Structs to Realmable protocol instead of inheriting from Object. Conform your Enums to RealmableEnum protocol.
  2. Register your Classes/Structs in AppDelegate's didFinishLaunchingWithOptions.
Realm.registerRealmables(ToDoItem.self)

Thats it! Now you can store your Struct or Class object into Realm as usualy you do with Objc Classes.

Pros and Cons

Pros ?

  • Enables you to store Swift native types (Structs, Classes, Enums, Arrays, Dictionaries, etc...)
  • Getting rid of redundant inheriting from Object class
  • Getting rid of Realm crashes like "Object has been deleted or invalidated"
  • Getting rid of Realm crashes like "Realm accessed from incorrect thread"
  • Getting rid of boiletplate code such @objc dynamic var. Use just var or let

Cons ?

  • Losing "Live Objects" feature. Which means when you modify an object got from Realm the other ones will not be updated automatically. So after modifying an object you should manually update it in realm.
    f.e.;
let realm = try! Realm()
var todoItem = realm.object(ofType: ToDoItem.self, forPrimaryKey: "1")
todoItem.text = "Modified text"
try! realm.write {
    realm.add(todoItem, update: true) //<- force Realm to update the object
}

Installation

Unrealm is available through CocoaPods. To install
it, simply add the following line to your Podfile:

pod 'Unrealm'

ToDos

  • Add more UnitTests

GitHub