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Realm Japan meetup #16
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Kishikawa Katsumi
July 24, 2016
Programming
0
180
Realm Japan meetup #16
- Realm Objective-C/Swift 1.0.1
- Realm video tutorial
- What's new in CoreData
Kishikawa Katsumi
July 24, 2016
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Transcript
Realm meetup #16
[email protected]
Katsumi Kishikawa Realm Inc.
[email protected]
Recent Updates
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Recent Updates • Realm Objective-C/Swift 1.0.1 (was 1.0.0) • Realm
Java 1.0.1 (was 1.0.0) • Realm React Native 0.13.0 • Realm Xamarin 0.76.0
[email protected]
[email protected]
Realm Objective-C/Swift 1.0.1 (was 1.0.1)
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Realm Objective-C/Swift 1.0.1 • RealmϑΝΠϧΛ։͘ࡍͷύϑΥʔϚϯε্ • ॻ͖ࠐΈτϥϯβΫγϣϯͷύϑΥʔϚϯε্ • RealmOptionalܕͷϓϥΠϚϦΩʔΛ࣋ͭΦϒδΣΫ τΛߋ৽Ͱ͖ͳ͍ͷमਖ਼
• objectForPrimaryKey(_:key:)ͷύϥϝʔλ͕Φϓγϣ φϧʹ • ෆ۩߹ͷमਖ਼
[email protected]
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Already compatible with Swift 3 & Xcode 8 https://github.com/realm/realm-cocoa/issues/3796
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Realm Objective-C/Swift 1.0.2 will be very soon!
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Realm Video Tutorial
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Beginning Realm on iOS www.raywenderlich.com/video-tutorials#begrealm
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Beginning Realm on iOS raywenderlich.com
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Beginning Realm on iOS raywenderlich.com
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WWDC 2016
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What’s new in Core Data
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What’s new in Core Data • Simple Core Data Stack
• NSPersistentStoreDescription (Like RealmConfiguratin?) • Type safety • Subclass generation • Version Pinning
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Simpler Core Data Stack
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lazy var managedObjectModel: NSManagedObjectModel =
{ let modelURL = NSBundle.mainBundle().URLForResource("Example", withExtension: "momd")! return NSManagedObjectModel(contentsOfURL: modelURL)! }() lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator? = { var coordinator: NSPersistentStoreCoordinator? = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel) let url = self.applicationDocumentsDirectory.URLByAppendingPathComponent("Example.sqlite") var error: NSError? = nil var failureReason = "There was an error creating or loading the application's saved data." if coordinator!.addPersistentStoreWithType(NSSQLiteStoreType, configuration: nil, URL: url, options: nil, error: &error) == nil { coordinator = nil NSLog("Unresolved error \(error), \(error!.userInfo)") abort() } return coordinator }() lazy var managedObjectContext: NSManagedObjectContext? = { let coordinator = self.persistentStoreCoordinator if coordinator == nil { return nil } var managedObjectContext = NSManagedObjectContext() managedObjectContext.persistentStoreCoordinator = coordinator return managedObjectContext }()
Simpler Core Data Stack
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lazy var persistentContainer: NSPersistentContainer =
{ let container = NSPersistentContainer(name: "Example") container .loadPersistentStores(completionHandler: { (storeDescription, error) in if let error = error { fatalError("Unresolved error \(error), \(error.userInfo)") } }) return container }()
Typed fetch request
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let request: NSFetchRequest<Dog> = Dog.fetchRequest() request.predicate
= Predicate(format: "...") request.fetchBatchSize = 20 let dogs = try! persistentContainer.viewContext.fetch(request) print(dogs)
Typed fetch request
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let request: NSFetchRequest<Dog> = Dog.fetchRequest() request.predicate
= Predicate(format: "...") request.fetchBatchSize = 20 let dogs = try! persistentContainer.viewContext.fetch(request) print(dogs)
Insert
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let dog = Dog(context: persistentContainer.viewContext) ... try! persistentContainer.viewContext.save()
Backgroud task
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let context = persistentContainer.newBackgroundContext() ...
Backgroud task
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persistentContainer.performBackgroundTask { (context) in ... }
Auto generation subclasses
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import Foundation import CoreData class Dog:
NSManagedObject { } extension Dog { @nonobjc class func fetchRequest() -> NSFetchRequest<Dog> { return NSFetchRequest<Dog>(entityName: "Dog"); } @NSManaged var age: Int64 @NSManaged var name: String? }
Where to find us • ! Realm Japan User Group:
facebook.com/groups/realmjp • ! Twitter: twitter.com/realmJapan • GitHub: github.com/realm • ! StackOverflow: ja.stackoverflow.com/questions/tagged/realm • ! Email:
[email protected]
• ! Slack: slack.realm.io/
[email protected]
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Realm Japan User Group Facebook
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Support Chat Slack
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Ξϯέʔτ http://bit.ly/RealmJP_16
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Questions? Katsuma Kishikawa
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www.realm.io/jp @k_katsumi