75 lines
3.0 KiB
Swift
75 lines
3.0 KiB
Swift
//
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// CDManager.swift
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// Zockerhoehle
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//
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// Created by Julian-Steffen Müller on 24.06.19.
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// Copyright © 2019 Julian-Steffen Müller. All rights reserved.
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//
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import Foundation
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import CoreData
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class CDManager {
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static let shared : CDManager = CDManager();
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private init() {
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}
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// MARK: - Core Data stack
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lazy var persistentContainer: NSPersistentContainer = {
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/*
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The persistent container for the application. This implementation
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creates and returns a container, having loaded the store for the
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application to it. This property is optional since there are legitimate
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error conditions that could cause the creation of the store to fail.
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*/
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let container = NSPersistentCloudKitContainer(name: "Zockerhoehle")
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container.loadPersistentStores(completionHandler: { (storeDescription, error) in
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if let error = error as NSError? {
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// Replace this implementation with code to handle the error appropriately.
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// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
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/*
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Typical reasons for an error here include:
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* The parent directory does not exist, cannot be created, or disallows writing.
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* The persistent store is not accessible, due to permissions or data protection when the device is locked.
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* The device is out of space.
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* The store could not be migrated to the current model version.
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Check the error message to determine what the actual problem was.
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*/
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fatalError("Unresolved error \(error), \(error.userInfo)")
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}
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})
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container.viewContext.automaticallyMergesChangesFromParent = true
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return container
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}()
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lazy var viewContext : NSManagedObjectContext = {
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self.persistentContainer.viewContext
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}()
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// MARK: - Core Data Saving support
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func saveContext () {
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print("CHANGES: \(self.persistentContainer.viewContext.hasChanges)")
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self.persistentContainer.performBackgroundTask({(context) in
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print("Context \(context.hasChanges)")
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if context.hasChanges {
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do {
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try context.save()
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print("--------------------saved-------")
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} catch {
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// Replace this implementation with code to handle the error appropriately.
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// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
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let nserror = error as NSError
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fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
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}
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}
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})
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}
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}
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