Local DB 추가 #19
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| @preconcurrency import CoreData | ||
| import os | ||
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| public final class ContextManager: CoreDataStack, Sendable { | ||
| private enum Constants: Sendable { | ||
| static let appGroup = "group.msg.booktracker" | ||
| static let cloudContainerIdentifier: String = "iCloud.msg.onmir" | ||
| static let inMemoryStoreURL: URL = URL(fileURLWithPath: "/dev/null") | ||
| static let databaseName: String = "OnmirModel" | ||
| } | ||
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| private let modelName: String | ||
| private let storeURL: URL | ||
| private let persistentContainer: NSPersistentCloudKitContainer | ||
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| public var mainContext: NSManagedObjectContext { | ||
| persistentContainer.viewContext | ||
| } | ||
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| public static let shared: ContextManager = { | ||
| ContextManager( | ||
| modelName: Constants.databaseName, | ||
| store: FileManager.default.containerURL( | ||
| forSecurityApplicationGroupIdentifier: Constants.appGroup | ||
| )! | ||
| ) | ||
| }() | ||
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| init(modelName: String, store storeURL: URL) { | ||
| self.modelName = modelName | ||
| self.storeURL = storeURL | ||
| self.persistentContainer = Self.createPersistentContainer( | ||
| storeURL: storeURL, | ||
| modelName: modelName | ||
| ) | ||
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| mainContext.automaticallyMergesChangesFromParent = true | ||
| mainContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy | ||
| } | ||
|
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| public func newDerivedContext() -> NSManagedObjectContext { | ||
| let context = persistentContainer.newBackgroundContext() | ||
| context.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy | ||
| return context | ||
| } | ||
| } | ||
|
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| extension ContextManager { | ||
| private static func createPersistentContainer( | ||
| storeURL: URL, | ||
| modelName: String | ||
| ) -> NSPersistentCloudKitContainer { | ||
| guard | ||
| let modelFileURL = Bundle.main.url( | ||
| forResource: modelName, | ||
| withExtension: "momd" | ||
| ) | ||
| else { | ||
| fatalError("Can't find \(Constants.databaseName).momd") | ||
| } | ||
|
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| guard | ||
| let objectModel = NSManagedObjectModel(contentsOf: modelFileURL) | ||
| else { | ||
| fatalError( | ||
| "Can't create object model named \(modelName) at \(modelFileURL)" | ||
| ) | ||
| } | ||
|
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| guard | ||
| let stagedMigrationFactory = StagedMigrationFactory( | ||
| bundle: .main, | ||
| momdURL: modelFileURL, | ||
| logger: os.Logger.contextManager | ||
| ) | ||
| else { | ||
| fatalError("Can't create StagedMigrationFactory") | ||
| } | ||
|
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| let baseURL = | ||
| storeURL | ||
| .appendingPathComponent("Onmir", isDirectory: true) | ||
| .appendingPathComponent("CoreData", isDirectory: true) | ||
|
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| if !FileManager.default.fileExists( | ||
| atPath: baseURL.path(percentEncoded: false) | ||
| ) { | ||
| do { | ||
| try FileManager.default.createDirectory( | ||
| at: baseURL, | ||
| withIntermediateDirectories: true | ||
| ) | ||
| } catch { | ||
| os.Logger.contextManager.error("Can't create directory: \(error)") | ||
| } | ||
|
Comment on lines
+91
to
+93
Contributor
There was a problem hiding this comment. The error handling for directory creation only logs the error. If creating the directory fails, } catch {
fatalError("Can't create directory for Core Data store: \(error)")
} |
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| } | ||
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| let sqliteURL = | ||
| baseURL | ||
| .appending(component: "ONMIR", directoryHint: .notDirectory) | ||
| .appendingPathExtension("sqlite") | ||
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| os.Logger.contextManager.debug("\(sqliteURL)") | ||
| let storeDescription = NSPersistentStoreDescription(url: sqliteURL) | ||
| // storeDescription.url = Constants.inMemoryStoreURL | ||
| storeDescription.type = NSSQLiteStoreType | ||
| storeDescription.setOption( | ||
| stagedMigrationFactory.create(), | ||
| forKey: NSPersistentStoreStagedMigrationManagerOptionKey | ||
| ) | ||
| storeDescription.shouldAddStoreAsynchronously = false | ||
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| storeDescription.cloudKitContainerOptions = | ||
| NSPersistentCloudKitContainerOptions( | ||
| containerIdentifier: Constants.cloudContainerIdentifier | ||
| ) | ||
| storeDescription.setOption( | ||
| true as NSNumber, | ||
| forKey: NSPersistentHistoryTrackingKey | ||
| ) | ||
| storeDescription.setOption( | ||
| true as NSNumber, | ||
| forKey: NSPersistentStoreRemoteChangeNotificationPostOptionKey | ||
| ) | ||
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| let persistentContainer = NSPersistentCloudKitContainer( | ||
| name: modelName, | ||
| managedObjectModel: objectModel | ||
| ) | ||
| persistentContainer.persistentStoreDescriptions = [storeDescription] | ||
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| persistentContainer.viewContext.automaticallyMergesChangesFromParent = true | ||
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| persistentContainer.loadPersistentStores { _, error in | ||
| if let error { | ||
| os.Logger.contextManager.error("\(error)") | ||
|
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| assertionFailure("Can't initialize Core Data stack") | ||
|
baekteun marked this conversation as resolved.
|
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| } | ||
| } | ||
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| return persistentContainer | ||
| } | ||
|
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| private static func storeURL() -> URL { | ||
| guard | ||
| let fileContainer = FileManager.default.containerURL( | ||
| forSecurityApplicationGroupIdentifier: Constants.appGroup | ||
| ) | ||
| else { | ||
| fatalError() | ||
|
baekteun marked this conversation as resolved.
Outdated
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| } | ||
| return fileContainer | ||
| } | ||
| } | ||
|
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| private extension os.Logger { | ||
| static let contextManager = os.Logger(subsystem: Bundle.main.bundleIdentifier ?? "", category: "ContextManager") | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| @_exported import CoreData | ||
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| public protocol CoreDataStack: Sendable { | ||
| var mainContext: NSManagedObjectContext { get } | ||
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| func newDerivedContext() -> NSManagedObjectContext | ||
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| func performAndSaveLock<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) throws -> T | ||
| func performAndSave<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) async throws -> T | ||
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| func performAndSaveLock(_ block: sending @escaping (NSManagedObjectContext) throws -> Void) throws | ||
| func performAndSave(_ block: sending @escaping (NSManagedObjectContext) throws -> Void) async throws | ||
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| func performQueryLock<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) throws -> T | ||
| func performQuery<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) async throws -> T | ||
| } | ||
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| extension CoreDataStack { | ||
| public func performAndSaveLock<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) throws -> T { | ||
| let context = newDerivedContext() | ||
| return try context.performAndWait { | ||
| let result = try block(context) | ||
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| try context.save() | ||
| return result | ||
| } | ||
| } | ||
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| public func performAndSave<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) async throws -> T { | ||
| let context = newDerivedContext() | ||
| return try await context.perform { | ||
| let result = try block(context) | ||
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| try context.save() | ||
| return result | ||
| } | ||
| } | ||
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| public func performAndSaveLock(_ block: sending @escaping (NSManagedObjectContext) throws -> Void) throws { | ||
| let context = newDerivedContext() | ||
| try context.performAndWait { | ||
| try block(context) | ||
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| try context.save() | ||
| } | ||
| } | ||
|
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| public func performAndSave(_ block: sending @escaping (NSManagedObjectContext) throws -> Void) async throws { | ||
| let context = newDerivedContext() | ||
| try await context.perform { | ||
| try block(context) | ||
|
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| try context.save() | ||
| } | ||
| } | ||
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| public func performQueryLock<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) throws -> T { | ||
| let context = newDerivedContext() | ||
| return try context.performAndWait { | ||
| try block(context) | ||
| } | ||
| } | ||
|
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| public func performQuery<T>(_ block: sending @escaping (NSManagedObjectContext) throws -> T) async throws -> T { | ||
| let context = newDerivedContext() | ||
| return try await context.perform { | ||
| try block(context) | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| import CoreData | ||
| import Foundation | ||
| import OSLog | ||
|
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| extension NSManagedObjectModelReference { | ||
| fileprivate convenience init(in database: URL, modelName: String) { | ||
| let modelURL = database.appending(component: "\(modelName).mom") | ||
| guard let model = NSManagedObjectModel(contentsOf: modelURL) else { fatalError() } | ||
|
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| self.init(model: model, versionChecksum: model.versionChecksum) | ||
| } | ||
| } | ||
|
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| struct StagedMigrationFactory: Sendable { | ||
| private let momdURL: URL | ||
| private let logger: os.Logger | ||
|
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| init?( | ||
| bundle: Bundle = .main, | ||
| momdURL: URL, | ||
| logger: os.Logger | ||
| ) { | ||
| self.momdURL = momdURL | ||
| self.logger = logger | ||
| } | ||
|
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| func create() -> NSStagedMigrationManager { | ||
| let allStages: [NSCustomMigrationStage] = [] | ||
|
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| return NSStagedMigrationManager(allStages) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| import Foundation | ||
|
|
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| public enum BookSourceType: String, Sendable { | ||
| case googleBooks = "GOOGLE_BOOKS" | ||
| } |
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