SwiftUI Core Data 89 - 데이터(Entity(Movie)) 저장하기

#1. CoreDataManager, saveMovie함수 추가

 

import Foundation

import CoreData

 

class CoreDataManager{

    

    let persistentContainer: NSPersistentContainer

    

    init(){

        

        persistentContainer = NSPersistentContainer(name: "HelloCoreDataModel")

        persistentContainer.loadPersistentStores{(description, error) in

            

            if let error = error {

                fatalError("Core Data Store failed to initialize \(error.localizedDescription)")

            }

            

        }

    }

    //Save Entity

    func saveMovie(title: String){

        

        let movie = Movie(context: persistentContainer.viewContext)

        movie.title = title

        

        do{

            try persistentContainer.viewContext.save()

            print("Movie saved!")

        } catch{

            print("Failed to save movie", error )

        }

    }

}

 

#2. ContentView

import SwiftUI

 

struct ContentView: View {

    

    let coreDM: CoreDataManager

    @State private var movieName: String = ""

    

    var body: some View {

        

        VStack{

            TextField("Enter movie name", text: $movieName).textFieldStyle(RoundedBorderTextFieldStyle())

            Button("Save"){

                coreDM.saveMovie(title: movieName)

            }

            Spacer()

            

        }.padding()

    }

}

 

struct ContentView_Previews: PreviewProvider {

    static var previews: some View {

        ContentView(coreDM: CoreDataManager())

    }

}