CODEWITHSUNDEEP
iosarraysrealm
user6553825
user6553825

Reputation:

Storing an array of Realm objects inside another Realm object (Swift)

Im creating a music like app. So far I am able to create and save song objects and save them to realm. The song objects are made up of simple "songTitle" and "songArtist" string variables.

I would like to add playlist-like functionality and I believe the best way would be through arrays. The playlist object would contain a "songsInPlaylist" array and that array would be populated with a list of previously created song objects. I have looked over the documentation and I cant get a lead on where to start.

In short, how do you create a realm object that contains an array of other realm objects.

I am using Swift 2.0

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Upvotes: 3

Views: 2322

Answers (2)

Jayaraj M
Jayaraj M

Reputation: 192

In mapper,

(map["key"], ArrayTransform<Object>())

"key" is JSON key

"Object" is your custom object

Upvotes: 0

Hossam Ghareeb
Hossam Ghareeb

Reputation: 7113

Using array of Realm Objects is simple, just use List container data structure to define to-many relation. Check this example:

class Task: Object {

   dynamic var name = ""
   dynamic var createdAt = NSDate()
   dynamic var notes = ""
   dynamic var isCompleted = false
}

class TaskList: Object {

   dynamic var name = ""
   dynamic var createdAt = NSDate()
   let tasks = List<Task>()
 }

You can have a look to my sample Todo app using Ream in Github

Upvotes: 3

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