这比班级还低
class User: NSManagedObject {
@NSManaged var id: Int
@NSManaged var name: String
}
需要转换为
{
"id" : 98,
"name" : "Jon Doe"
}
I tried manually passing the object to a function which sets the variables into a dictionary and returns the dictionary. But I would want a better way to accomplish this.
在SWIFT 4中，您可以继承Codable类型.
struct Dog: Codable {
var name: String
var owner: String
}
// Encode
let dog = Dog(name: "Rex", owner: "Etgar")
let jsonEncoder = JSONEncoder()
let jsonData = try jsonEncoder.encode(dog)
let json = String(data: jsonData, encoding: String.Encoding.utf16)
// Decode
let jsonDecoder = JSONDecoder()
let secondDog = try jsonDecoder.decode(Dog.self, from: jsonData)