RealmSwift-JSON

A transform library between RealmSwift Object and JSON like Mantle

Installation

Copy files in the RealmSwift-JSON folder into your project and add the under code into objective-c bridging-header

#import <Realm/RLMProperty.h>
#import <Realm/RLMObjectSchema.h>
#import <Realm/RLMObject_Private.h>
#import <Realm/Realm.h>

Using RealmSwift-JSON

Specify the inbound and outbound JSON mapping with the models.

class card:Object {
    dynamic var id = "" 
    dynamic var title:String?
    let persons = List<Person>()

    class func JSONInboundMappingDictionary() -> [String:String] {
        return [
            "id": "id",
            "title": "title",
            "card_persons":"persons"
        ]
    }
}

class person:Object {
    dynamic var id = ""
    dynamic var name = "" 
    
    class func JSONOutboundMappingDictionary() -> [String:String] {
        return [
            "id": "id",
            "person_name": "name"
        ]
    }
}

It works as follows:

let person = Person(jsonDictionary:["id":"0", "person_name":"henry"])
Realm().create(card.self, jsonDictionary:["id":"0", "title":"Seoul", card_persons:[["id":"0", "name":"person1"]] ], update: true)
print(person.JSONDictionary()) 
// ["id":"0", "name":"henry"]

Specify custom NSValueTransformer like Mantle way as follows:

class category:Object {
    let addesses = List<CSRString>()
    
    class func addressesJSONTransformer() -> NSValueTransformer {
        return CSRStringJSONTransformer()
    }
}

class CSRString:Object {
    dynamic var stringValue = "" 
}

class CSRStringJSONTransformer: NSValueTransformer {
    override func transformedValue(value: AnyObject?) -> AnyObject? {
        let rString = List<CSRString>()
        if let value = value as? [String] {
            for string in value {
                let str = CSRString()
                str.stringValue = string
                rString.append(str)
            }
            return rString
        } else {
            return super.transformedValue(value)
        }
    }
    override func reverseTransformedValue(value: AnyObject?) -> AnyObject? {
        if let stringArray = value as? List<CSRString> {
            var strings = [String]()
            for rString in stringArray {
                strings.append(rString.stringValue)
            }
            return strings.count > 0 ? strings : nil
        } else {
            return super.reverseTransformedValue(value)
        }
    }
}

License

RealmSwift+JSON is under the MIT license.