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Moved creating CoreData PersistentContainer to CoreDataBankingPersistence

This commit is contained in:
dankito 2020-10-10 16:07:56 +02:00
parent e29eead03a
commit 49a21909ed
3 changed files with 54 additions and 61 deletions
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46
ui/BankingiOSApp/BankingiOSApp/AppDelegate.swift
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@ -1,5 +1,4 @@
import UIKit
import CoreData
import BankingUiSwift
@ -25,50 +24,5 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
// MARK: - Core Data stack
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "BankingiOSApp")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// 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.
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
// MARK: - Core Data Saving support
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// 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.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}
}

17
ui/BankingiOSApp/BankingiOSApp/SceneDelegate.swift
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@ -8,17 +8,14 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
var persistence: CoreDataBankingPersistence?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
// Get the managed object context from the shared persistent container.
let appDelegate = UIApplication.shared.delegate as! AppDelegate
let context = appDelegate.persistentContainer.viewContext
setupBankingUi(context: context)
setupBankingUi()
let authenticationService = AuthenticationService()
@ -39,17 +36,17 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
}
}
private func setupBankingUi(context: NSManagedObjectContext) {
private func setupBankingUi() {
let appDataFolder = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first
?? Bundle.main.resourceURL?.absoluteString ?? ""
let persistence = CoreDataBankingPersistence(context: context)
let persistence = CoreDataBankingPersistence()
self.persistence = persistence
let dataFolder = URL(fileURLWithPath: "data", isDirectory: true, relativeTo: URL(fileURLWithPath: appDataFolder))
let presenter = BankingPresenterSwift(dataFolder: dataFolder, router: SwiftUiRouter(), webClient: UrlSessionWebClient(), persistence: persistence, transactionPartySearcher: persistence, bankIconFinder: SwiftBankIconFinder(), serializer: NoOpSerializer(), asyncRunner: DispatchQueueAsyncRunner())
DependencyInjector.register(dependency: persistence)
DependencyInjector.register(dependency: presenter)
}
@ -93,7 +90,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
// to restore the scene back to its current state.
// Save changes in the application's managed object context when the application transitions to the background.
(UIApplication.shared.delegate as? AppDelegate)?.saveContext()
persistence?.saveContext()
}

50
ui/BankingiOSApp/BankingiOSApp/persistence/CoreDataBankingPersistence.swift
View File

@ -2,20 +2,62 @@ import Foundation
import CoreData
import UIKit
import BankingUiSwift
import EncryptedCoreData
class CoreDataBankingPersistence: IBankingPersistence, ITransactionPartySearcher {
private let mapper = Mapper()
private let context: NSManagedObjectContext
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "BankingiOSApp")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// 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.
init(context: NSManagedObjectContext) {
self.context = context
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
// TODO: still needed?
// to fix merging / updating cached objects, see Mapper
context.mergePolicy = NSMergePolicy(merge: NSMergePolicyType.mergeByPropertyObjectTrumpMergePolicyType)
container.viewContext.mergePolicy = NSMergePolicy(merge: NSMergePolicyType.mergeByPropertyObjectTrumpMergePolicyType)
return container
}()
lazy var context: NSManagedObjectContext = {
return persistentContainer.viewContext
}()
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// 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.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}