rx_coredata_entity.swift

//
//  Car+Extensions.swift
//  SomeExampleApp
//
//  Created by Oleksii Horishnii on 11/14/17.
//  Copyright © 2017 Oleksii Horishnii. All rights reserved.
//

import Foundation
import CoreData
import RxDataSources
import RxCoreData

extension Car : Equatable {
    static func == (lhs: Car, rhs: Car) -> Bool {
        return lhs.identity == rhs.identity
    }
}

extension Car : Persistable {
    typealias T = NSManagedObject
    
    static var entityName: String {
        return "Car"
    }
    
    static var primaryAttributeName: String {
        return "id"
    }
    
    var identity: String {
        return "\(self.date.hashValue)"
    }
    
    init(entity: T) {
        self.date = entity.value(forKey: "date") as! Date
        self.id = entity.value(forKey: "id") as! String
        
        self.model = entity.value(forKey: "model") as! String
        self.price = entity.value(forKey: "price") as! Decimal
        
        self.engine = entity.value(forKey: "engine") as! String
        self.transmission = entity.value(forKey: "transmission") as! String
        self.condition = entity.value(forKey: "condition") as! String
    }
    
    func update(_ entity: T) {
        entity.setValue(date!, forKey: "date")
        entity.setValue(id!, forKey: "id")
        
        entity.setValue(model!, forKey: "model")
        entity.setValue(price!, forKey: "price")
        
        entity.setValue(engine!, forKey: "engine")
        entity.setValue(transmission!, forKey: "transmission")
        entity.setValue(condition!, forKey: "condition")

        do {
            try entity.managedObjectContext?.save()
        } catch let e {
            print(e)
        }
    }
    
}