Serializing custom bag object to json string int to Bool in swift - ios

Question

In my project, there is a bag object which was declared as static and when a customer click the "approve order" button, I serialize the bag object to JSON String. There is no problem so far. However, when I print the serialized json string, all of the "IDs" with Int in the bag converted to Bool type in json string result.
The related code blocks for this process as below:
This is my "Serialize" class:
public class Serializable : NSObject
{
func toDictionary() -> NSDictionary
{
var aClass : AnyClass? = self.dynamicType
var propertiesCount : CUnsignedInt = 0
var propertiesInAClass : UnsafeMutablePointer<objc_property_t> = class_copyPropertyList(aClass, &propertiesCount)
var propertiesDictionary : NSMutableDictionary = NSMutableDictionary()
for(var i = 0; i < Int(propertiesCount); i++)
{
var property = propertiesInAClass[i]
var propName = NSString(CString: property_getName(property), encoding: NSUTF8StringEncoding)
var propType = property_getAttributes(property)
var propValue : AnyObject! = self.valueForKey(propName!)
if(propValue is Serializable)
{
propertiesDictionary.setValue((propValue as Serializable).toDictionary(), forKey: propName!)
}
else if(propValue is Array<Serializable>)
{
var subArray = Array<NSDictionary>()
for item in (propValue as Array<Serializable>)
{
subArray.append(item.toDictionary())
}
propertiesDictionary.setValue(subArray, forKey: propName!)
}
else if(propValue is NSData)
{
propertiesDictionary.setValue((propValue as NSData).base64EncodedStringWithOptions(nil), forKey: propName!)
}
else if(propValue is Bool)
{
propertiesDictionary.setValue((propValue as Bool).boolValue, forKey: propName!)
}
else if(propValue is NSDate)
{
var date = propValue as NSDate
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "Z"
var dateString = NSString(format: "/Date(%.0f000%#)/", date.timeIntervalSince1970, dateFormatter.stringFromDate(date))
propertiesDictionary.setValue(dateString, forKey: propName!)
}
else
{
propertiesDictionary.setValue(propValue, forKey: propName!)
}
}
return propertiesDictionary
}
func toJson() -> NSData!
{
var dictionary = self.toDictionary()
var err: NSError?
return NSJSONSerialization.dataWithJSONObject(dictionary, options:NSJSONWritingOptions(0), error: &err)
}
func toJsonString() -> NSString!
{
return NSString(data: self.toJson(), encoding: NSUTF8StringEncoding)
}
override init()
{
}
}
This is my BagItem class:
class BagItem: Serializable, Hashable {
var uniqueID: Int = 0
override var hashValue: Int { return uniqueID.hashValue }
var bagItemId: String
var item: Item
var boughtDate: NSDate!
var boughtTime: String
var branch: Branch
var isMainItem: Bool
override init()
{
self.bagItemId = ""
self.item = Item()
self.boughtDate = NSDate()
self.boughtTime = ""
self.branch = Branch()
self.isMainItem = false
}
}
func ==(lhs: BagItem, rhs: BagItem) -> Bool
{
return lhs.uniqueID == rhs.uniqueID
}
This is my "SerializationBag" class:
class SerializableBag: Serializable
{
var bag: Array<BagItem> = []
override init()
{
}
}
This is my "ConvertBagToJSON" method in Bag class:
static func ConvertBagToJson() -> NSString
{
var serializer: SerializableBag = SerializableBag()
serializer.bag = self.bag
return serializer.toJsonString()
}
And my returned JSON String result as below:
{
"bag": [
{
"branch": {
"city": {
"cityId": false,
"cityName": ""
},
"town": {
"townName": "",
"townId": false
},
"branchName": "Branch",
"branchId": true,
"business": {
"businessPhotoPath": "",
"businessName": "",
"businessId": true
},
"branchAddress": "Some Address",
"branchTelephone": ""
},
"uniqueID": false,
"boughtDate": "/Date(1414581909000+0200)/",
"item": {
"itemName": "Pencil",
"itemId": true,
"itemPrice": true
},
"isMainItem": true,
"bagItemId": "9674D47B-0D2F-46CC-BA16-754875AE277D",
"hashValue": false,
"boughtTime": "00:30"
}
]
}
As you see, in JSON String, IDs are Bool, but they have to be in Int type. How can I solve this problem ?
Thank you for your answers
Best regards

Answer 1

This is because Int is bridged to NSNumber and NSNumber is always is Bool.
In your case, you don't need these lines:
else if(propValue is Bool)
{
propertiesDictionary.setValue((propValue as Bool).boolValue, forKey: propName!)
}
You can just delete them, because NSJSONSerialization can handle it.
let flg:NSNumber = true
let id:NSNumber = 1
let dict:NSDictionary = [
"bool": flg,
"id": id
]
let jsonDat = NSJSONSerialization.dataWithJSONObject(dict, options: .allZeros, error: nil)!
let jsonStr = NSString(data: dat, encoding:NSUTF8StringEncoding)
// -> {"id":1,"bool":true}
more relevant example:
class Foo:NSObject {
var flg:Bool = true
var id:Int = 1
}
let obj = Foo()
let dict:NSDictionary = [
"flg": obj.valueForKey("flg")!,
"id": obj.valueForKey("id")!
]
let jsonData = NSJSONSerialization.dataWithJSONObject(dict, options: .allZeros, error: nil)!
let jsonStr = NSString(data: jsonData, encoding:NSUTF8StringEncoding)!
// -> {"flg":true,"id":1}