Using ObjectMapper When Json Contains Root

objectmapperwrootjson.swift

//: Please build the scheme 'ObjectMapperPlayground' first
import XCPlayground
XCPlaygroundPage.currentPage.needsIndefiniteExecution = true

import ObjectMapper

let questionsArrayJson = "{\"questions\":[{\"id\":1,\"body\":\"ddd\",\"price_in_cent\":0,\"can_listen\":false,\"asker\":{\"id\":1,\"name\":\"feafeafeafe\",\"title\":null,\"about_me\":null,\"price_in_cent\":100,\"email\":null,\"authentication_token\":\"R3/KBYssIRLtRR30xJoFy7+c3XZ3NLcj1ClanCFyF/8UmlwdnVbWJrAdJyLrbnO+U50xaDK2+VX7/dTVXRmNmw==\",\"has_payment\":false},\"answerer\":{\"id\":2,\"name\":\"feafeafeafe\",\"title\":null,\"about_me\":null,\"price_in_cent\":100}},{\"id\":2,\"body\":\"ddd\",\"price_in_cent\":0,\"can_listen\":false,\"asker\":{\"id\":1,\"name\":\"feafeafeafe\",\"title\":null,\"about_me\":null,\"price_in_cent\":100,\"email\":null,\"authentication_token\":\"R3/KBYssIRLtRR30xJoFy7+c3XZ3NLcj1ClanCFyF/8UmlwdnVbWJrAdJyLrbnO+U50xaDK2+VX7/dTVXRmNmw==\",\"has_payment\":false},\"answerer\":{\"id\":2,\"name\":\"feafeafeafe\",\"title\":null,\"about_me\":null,\"price_in_cent\":100}}]}"


let questionObjectJson = "{\"question\":{\"id\":1,\"body\":\"ddd\",\"price_in_cent\":0,\"can_listen\":false,\"asker\":{\"id\":1,\"name\":null,\"title\":null,\"about_me\":null,\"price_in_cent\":100,\"email\":null,\"authentication_token\":\"R3/KBYssIRLtRR30xJoFy7+c3XZ3NLcj1ClanCFyF/8UmlwdnVbWJrAdJyLrbnO+U50xaDK2+VX7/dTVXRmNmw==\",\"has_payment\":false},\"answerer\":{\"id\":2,\"name\":null,\"title\":null,\"about_me\":null,\"price_in_cent\":100}}}"


let userObjectJson = "{\"user\":{\"id\":1,\"name\":\"afeafeafe\",\"title\":null,\"about_me\":null,\"price_in_cent\":100,\"email\":null,\"authentication_token\":\"R3/KBYssIRLtRR30xJoFy7+c3XZ3NLcj1ClanCFyF/8UmlwdnVbWJrAdJyLrbnO+U50xaDK2+VX7/dTVXRmNmw==\",\"has_payment\":false}}"

struct Question: Mappable {
  
  var id: Int = 0
  var body: String = ""
  var asker: User = User()
  var answerer: User = User()
  var amount: Int = 0
  
  init(){}
  
  init?(_ map: Map){
    // check if a required "name" property exists within the JSON.
  }
  
  mutating func mapping(map: Map){
    id <- map["question.id"]
    body <- map["question.body"]
    asker <- map["question.asker"]
    answerer <- map["question.target"]
    amount <- map["question.amount"]
  }
  
}


struct User: Mappable {
  var id: Int = 0
  var name: String = ""
  var title: String = ""
  var aboutMe: String = ""
  var priceInCent: Int = 0
  
  // Authenticated user only attributes
  var authenticationToken: String?
  var email: String?
  var hasPayment: Bool = false
  
  var screen_name: String = ""
  var web_url: String = ""
  var profile_image_url: String = ""
  var answered_count: Int = 0
  var cost_per_question: Int = 0
  var income: Int = 0
  
  var profile_image_nsurl: NSURL! { return NSURL(string:profile_image_url) }
  
  init() {}
  
  init?(_ map: Map) {}
  
  var id_as_string:String{
    return "\(id)"
  }
  
  mutating func mapping(map: Map) {
    id <- map["user.id"]
    name <- map["user.name"]
    title <- map["user.title"]
    aboutMe <- map["user.about_me"]
    priceInCent <- map["user.price_in_cent"]
    
    authenticationToken <- map["user.authentication_token"]
    email <- map["user.email"]
    hasPayment <- map["user.has_payment"]
    
    screen_name <- map["user.screen_name"]
    web_url <- map["user.web_url"]
    profile_image_url <- map["user.profile_image_url"]
    answered_count <- map["user.answered_count"]
    cost_per_question <- map["user.cost_per_question"]
  }
  
  
}

let user = Mapper<User>().map(userObjectJson)
print ("user maps correctly : \(user?.name)")

let question = Mapper<Question>().map(questionObjectJson)
print ("Question ID maps correctly : \(question?.id)")
print ("Asker does not map: \(question?.asker.id)")


// THIS DOES NOT MAP CORRECTlY
let questions = Mapper<Question>().mapArray(questionsArrayJson)
print ("Count of questions is wrong: \(questions?.count)")
print ("Body of first question is wrong: \(questions?.first?.body)")



struct QuestionResponse: Mappable {
  var questions: [Question]?
  
  init() {}
  
  init?(_ map: Map) {}
  
  mutating func mapping(map: Map) {
    self.questions <- map["questions"]
  }
}


let questionsResponses = Mapper<QuestionResponse>().map(questionsArrayJson)
print ("Using a special class to wrap responses work : \(questionsResponses?.questions?.count)")
print ("Mapping user is wrong: \(questionsResponses?.questions?.first?.answerer.name)")



//user maps correctly : Optional("afeafeafe")
//Question ID maps correctly : Optional(1)
//Asker does not map: Optional(0)
//Count of questions is wrong: Optional(1)
//Body of first question is wrong: Optional("")
//Using a special class to wrap responses work : Optional(2)
//Mapping user is wrong: Optional("")