A little help with nested objects needed

[pfitz]

I need a little guidance with mapping nested objects. I managed to use ObjectMapper with built in types perfect. But how do I map nested custom objects?

Given something like this:

class A {
    let b: B
    let c: [C]
}

As I said I managed to map B and C alone. But how do I map it from inside A? Do I need to write a custom transform? Or do I need to make B and C conform to some protocol? I am guessing it is quite simple but I just can't get my head around it.

[tristanhimmelman]

Here is an example from the tests included in the framework. The key is that any nested objects also need to conform to the Mappable protocol. Also, by default ObjectMapper does not support immutable types (let) as member variables.

Hope this helps

class Plan: Mappable {
    var primaryTask: Task?
    var tasks: [Task]?

    required init?(_ map: Map) {
        mapping(map)
    }

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

class Task: Mappable {
    var taskId: Int?
    var percentage: Double?

    init() {}

    required init?(_ map: Map) {
        mapping(map)
    }

    func mapping(map: Map) {
        taskId <- map["taskId"]
        percentage <- map["percentage"]
    }
}

[pfitz]

Ah ok. Did not believed it to be THAT easy. With Mantle you had to say which class is should map to. It is working. Thanks!!!

[tristanhimmelman]

Glad to help 👍