Project Setup

iOSTask/Pods/ObjectMapper/Sources/CodableTransform.swift

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+//
+//  CodableTransform.swift
+//  ObjectMapper
+//
+//  Created by Jari Kalinainen on 10/10/2018.
+//
+//  The MIT License (MIT)
+//
+//  Copyright (c) 2014-2018 Tristan Himmelman
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+
+import Foundation
+
+/// Transforms JSON dictionary to Codable type T and back
+open class CodableTransform<T: Codable>: TransformType {
+
+    public typealias Object = T
+    public typealias JSON = Any
+
+    public init() {}
+
+    open func transformFromJSON(_ value: Any?) -> Object? {
+				var _data: Data? = nil
+				switch value {
+				case let dict as [String : Any]:
+					_data = try? JSONSerialization.data(withJSONObject: dict, options: [])
+				case let array as [[String : Any]]:
+					_data = try? JSONSerialization.data(withJSONObject: array, options: [])
+				default:
+					_data = nil
+				}
+				guard let data = _data else { return nil }
+				
+        do {
+            let decoder = JSONDecoder()
+            let item = try decoder.decode(T.self, from: data)
+            return item
+        } catch {
+            return nil
+        }
+    }
+
+    open func transformToJSON(_ value: T?) -> JSON? {
+        guard let item = value else {
+            return nil
+        }
+        do {
+            let encoder = JSONEncoder()
+            let data = try encoder.encode(item)
+            let dictionary = try JSONSerialization.jsonObject(with: data, options: .allowFragments)
+            return dictionary
+        } catch {
+            return nil
+        }
+    }
+}