Alamofire, Objectmapper, Realm: Nested Objects

Question

I\'m using Alamofire, Objectmapper, Realm and everything is working beside one thing: I can\'t map nested objects.

class Voting: Object, Mappable {

    dyna         


        

Answer 1

The old ListTransform solution no longer works in Swift 3.

This is what I'm using now; put this in a file called, ListExtensions.swift, for example.

import Foundation
import ObjectMapper
import RealmSwift

/// Maps object of Realm's List type
func <- (left: List, right: Map)
{
    var array: [T]?

    if right.mappingType == .toJSON {
        array = Array(left)
    }

    array <- right

    if right.mappingType == .fromJSON {
        if let theArray = array {
            left.append(objectsIn: theArray)
        }
    }
}

This allows you to simply use it like this:

class Parent: Object, Mappable {
    dynamic var id: Int = 0
    var children = List()

    required convenience init?(_ map: Map) {
        self.init()
    }

    func mapping(map: Map) {
        id <- map["id"]
        children <- map["children"]
    }
}