JSON to Multidimensional Array - ios

Question

I'm trying to take my JSON from a HTTP POST and put it in a multidimensional array to use for sections / table cells in Swift.
I would like each table section to use these dynamic keys (submitid) and insert the cell data for each:
15302992338145
15301374235890
15302930963080
My JSON:
let swiftyJsonVar = JSON(data!)
{
"data" : {
"15302992338145" : [
{
"date" : "2018-06-27",
"username" : "user1",
"submitid" : 15302992338145,
"notes" : "Testing"
},
{
"date" : "2018-06-28",
"username" : "user1",
"submitid" : 15302992338145,
"notes" : "Testing"
}
],
"15301374235890" : [
{
"date" : "2018-06-21",
"username" : "user2",
"submitid" : 15301374235890,
"notes" : "Comments one two three"
},
{
"date" : "2018-06-22",
"username" : "user2",
"submitid" : 15301374235890,
"notes" : "N/A"
}
],
"15302930963080" : [
{
"date" : "2018-07-03",
"username" : "user3",
"submitid" : 15302930963080,
"notes" : "Hello"
}
]
}
}
I've tried but with no luck:
if let resData = swiftyJsonVar["data"][].arrayObject {
self.arrRes = resData as! [String: [[String:AnyObject]]]
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return arrRes.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("tableCell", forIndexPath: indexPath)
// Configure the cell...
var dict = arrRes[indexPath.section][indexPath.row]
cell.dateLabel?.text = dict["date"]
return cell
}

Answer 1

You should stop using SwiftyJSON and move up to Swift 4 and Decodable:
struct User : Decodable {
let date : String
let username : String
let submitid : Int
let notes : String
}
struct Result : Decodable {
let data : [[User]]
struct AnyCodingKey : CodingKey {
var stringValue: String
var intValue: Int?
init(_ codingKey: CodingKey) {
self.stringValue = codingKey.stringValue
self.intValue = codingKey.intValue
}
init(stringValue: String) {
self.stringValue = stringValue
self.intValue = nil
}
init(intValue: Int) {
self.stringValue = String(intValue)
self.intValue = intValue
}
}
init(from decoder: Decoder) throws {
let con = try! decoder.container(keyedBy: AnyCodingKey.self)
let intermediate = try! con.decode([String:[User]].self,
forKey: AnyCodingKey(stringValue:"data"))
var data = [[User]]()
for d in intermediate {
data.append(d.value)
}
self.data = data
}
}
// jsondata is your original JSON data, as you downloaded it
let result = try! JSONDecoder().decode(Result.self, from: jsondata)
After that, result.data is an array of array of User.
[[User(date: "2018-07-03", username: "user3",
submitid: 15302930963080, notes: "Hello")],
[User(date: "2018-06-27", username: "user1",
submitid: 15302992338145, notes: "Testing"),
User(date: "2018-06-28", username: "user1",
submitid: 15302992338145, notes: "Testing")],
[User(date: "2018-06-21", username: "user2",
submitid: 15301374235890, notes: "Comments one two three"),
User(date: "2018-06-22", username: "user2",
submitid: 15301374235890, notes: "N/A")]]