Objectmapper: Singleton Design with ObjectMapper

[ttuygun]

Hi! I've design my models that implements singleton patterns with sharedInstance.

class Car {
    static let sharedInstance = Car()
}

How can I implement singleton pattern using sharedInstance in ObjectMapper class? When I'm working with sharedInstance and Mappable. This cause a error like _Missing argument for parameter 'map' in call_

class Car: Mappable {

    static let sharedInstance = Car()

    var mode: String?

    required init?(map: Map) { }

    func mapping(map: Map) {
        mode    <- map["info"]["mode"]
    }
}

[devxoul]

Just add an initializer:

class Car: Mappable {

    static let sharedInstance = Car()

    var mode: String?

+   init() {
+       self.mode = nil
+   }

    required init?(map: Map) { }

    func mapping(map: Map) {
        mode    <- map["info"]["mode"]
    }
}

[tristanhimmelman]

Another alternative would be to look into the StaticMappable protocol (see README)

[ttuygun]

Thank you so much @tristanhimmelman and @devxoul

[devxoul]

@anddygon what does that mean?

[devxoul]

@anddygon what do you want?

[vinothvino42]

Adding an empty initializer solves the problem.

init() {

 }