ObjectMapper - nested dynamic keys
I am writing in Swift 3.1 using ObjectMapper to map my JSON response to my models.
I am trying to map this rather complex JSON response to dynamic keys, and I am hoping to get some feedback on what I am doing wrong.
The group has statistics about this progress. It has statistics broken down into years and then months. Every month for a year has results, ROI and winnings. ROI and winnings are only percentages, but the result key is captured using the keys below, 1-5, and then an integer as value.
My JSON
"stats": {
"2017": {
"1": {
"results": {
"1": 13,
"2": 3,
"3": 1,
"4": 1,
"5": 0
},
"roi": 0.40337966202464975,
"win": 0.8181818181818182
},
"2": {
"results": {
"1": 13,
"2": 5,
"3": 1,
"4": 2,
"5": 1
},
"roi": 0.26852551067922953,
"win": 0.717948717948718
}
}
}
My Models
class GroupResponse: Mappable {
var stats: [String: [String: StatsMonthResponse]]?
func mapping(map: Map) {
stats <- map["stats"]
}
}
class StatsMonthResponse: Mappable {
var tips: [String: Int]?
var roi: Double?
var win: Double?
func mapping(map: Map) {
tips <- map["results"]
roi <- map["roi"]
win <- map["win"]
}
}
What i get
The answer I get has the stats property in my GroupResponse class as nil.
What other approach could I take to achieve this goal, or change my implementation to do this?
source to share
Decision
I solved the problem by mapping JSON manually.
class GroupResponse: Mappable {
var stats: [String: StatsYear]?
func mapping(map: Map) {
stats <- map["stats"]
}
}
class StatsYear: Mappable {
var months: [String: StatsMonth] = [:]
override func mapping(map: Map) {
for (monthKey, monthValue) in map.JSON as! [String: [String: Any]] {
let month = StatsMonth()
for (monthKeyType, valueKeyType) in monthValue {
if monthKeyType == "results" {
let tipResultDict = valueKeyType as! [String: Int]
for (result, tipsForResult) in tipResultDict {
month.tips[result] = tipsForResult
}
}
else if monthKeyType == "roi" {
month.roi = valueKeyType as? Double
}
else if monthKeyType == "win" {
month.win = valueKeyType as? Double
}
}
months[monthKey] = month
}
}
}
class StatsMonth {
var tips: [String: Int] = [:]
var roi: Double?
var win: Double?
}
This is probably the best solution to this problem, but for now this is what I am sticking with.
Hope this helps!
source to share