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What’s Realm
• ϞόΠϧσόΠεઐ༻ʹ৽͘͠࡞ΒΕͨσʔλϕʔε
• ϞόΠϧ༻్ʹ࠷దԽ͞Ε͍ͯΔ
- Ԇϩʔυ
- θϩίϐʔɾΞʔΩςΫνϟ
- ωΠςΟϒɾϦϯΫ
• ಠࣗΤϯδϯʢSQLiteΛ͍ͬͯͳ͍ʣ
• Φʔϓϯιʔε
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[email protected]
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What’s Realm
• ߴͳಈ࡞
• ҉߸ԽΛඪ४උ
• ϚϧνϓϥοτϑΥʔϜ
• ײతͰγϯϓϧͳAPI
• ஸೡͳαϙʔτʢຊޠOKʣ
[email protected]
[email protected]
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Multi platform
• Realm Objective-C/Swift 1.0.2
• Realm Java 1.1.1 (was 1.1.0)
• Realm React Native 0.14.0
• Realm Xamarin 0.77.1 (was 0.76.0)
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[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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Simple API (Model definition)
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class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
class Comment: Object {
dynamic var id: Int = 0
dynamic var content: String = ""
dynamic var user: User? = nil
}
class User: Object {
dynamic var id: Int = 0
dynamic var name: String = ""
}
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
0CKFDUך؟ـؙٓأ
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
0CKFDUך؟ـؙٓأ
㛇劤涸חEZOBNJDWBS
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Simple API (Model definition)
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class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
⢽㢩(FOFSJDTך
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
ؙٓأذ٦ـٕ
فٗػذ؍ؕٓي
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
ر٦ة㘗
رؿٕؓز⦼
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
㼎ךꟼ鸬
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
}
㼎㢳ךꟼ鸬
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Simple API (Model definition)
[email protected]
class Article: Object {
dynamic var id: Int = 0
dynamic var title: String = ""
dynamic var content: String = ""
dynamic var creationDate: NSDate = NSDate()
dynamic var modificationDate: NSDate = NSDate()
dynamic var deletionDate: NSDate? = nil
dynamic var user: User? = nil
let comments = List()
override class func primaryKey() -> String? {
return "id"
}
}
فٓ؎ؤؗ٦
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Usage (Save)
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let realm = try! Realm()
let article = Article()
article.title = titleTextfield.text
article.contents = contentTextfield.text
let currentUser = realm.objectForPrimaryKey(User.self, key:
userID)
article.user = currentUser
try! realm.write { in
realm.add(article)
}
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Usage (Save)
[email protected]
let realm = try! Realm()
let article = Article()
article.title = titleTextfield.text
article.contents = contentTextfield.text
try! realm.write { in
realm.add(article)
}
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Usage (Save)
[email protected]
let realm = try! Realm()
let article = Article()
article.title = titleTextfield.text
article.contents = contentTextfield.text
try! realm.write { in
realm.add(article)
}
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Usage (Save)
[email protected]
let realm = try! Realm()
let article = Article()
article.title = titleTextfield.text
article.contents = contentTextfield.text
try! realm.write { in
realm.add(article)
}
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Usage (Save)
[email protected]
let realm = try! Realm()
let article = Article()
article.title = titleTextfield.text
article.contents = contentTextfield.text
realm.write { () in
realm.add(article)
}
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Usage (Query)
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let realm = try! Realm()
let currentUser = realm.objectForPrimaryKey(User.self, key: userID)
let articles = realm
.objects(Article)
.filter("user = %@", currentUser)
let article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser = realm.objectForPrimaryKey(User.self, key: userID)
let articles = realm
.objects(Article)
.filter("user = %@", currentUser)
let article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser = realm.objectForPrimaryKey(User.self, key: userID)
let articles = realm
.objects(Article)
.filter("user = %@", currentUser)
let article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser = realm.objectForPrimaryKey(User.self, key: userID)
let articles = realm
.objects(Article)
.filter("user = %@", currentUser)
let article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser: User = realm.objectForPrimaryKey(User.self, key: userID)
let articles: Results = realm
.objects(Article)
.filter("user = %@", currentUser)
let article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser: User = realm.objectForPrimaryKey(User.self, key: userID)
let articles: Results = realm
.objects(Article)
.filter("user = %@", currentUser)
let article: Article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (Query)
[email protected]
let realm = try! Realm()
let currentUser: User = realm.objectForPrimaryKey(User.self, key: userID)
let articles: Results = realm
.objects(Article)
.filter("user = %@", currentUser)
let article: Article = articles[indexPath.row]
cell.titleTextLabel.text = article.title
cell.contentTextLabel.text = article.contents
cell.userNameLabel.text = article.user.name
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Usage (RealmConfiguration)
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let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
let realm = try! Realm(configuration: config)
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
let realm = try! Realm(configuration: config)
⥂㶷㜥䨽ؿ؋؎ٕせ
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
let realm = try! Realm(configuration: config)
农〾⻉
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
let realm = try! Realm(configuration: config)
و؎ؚٖ٦ءّٝ儗חؿ؋؎ٕꤐ
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
let realm = try! Realm(configuration: config)
ֿךؿ؋؎ٕד⢪欽ׅذ٦ـٕꣲ㹀
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
Realm.Configuration.defaultConfiguration = config
let realm = try! Realm()
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Usage (RealmConfiguration)
[email protected]
let config = Realm.Configuration(fileURL: NSURL(fileURLWithPath: "..."),
encryptionKey: key,
deleteRealmIfMigrationNeeded: true,
objectTypes: [Article.self, User.self, Comment.self])
Realm.Configuration.defaultConfiguration = config
let realm = try! Realm()
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Multi thread
[email protected]
func updateUnread(id: String) {
let realm = try! Realm()
guard let tweet = realm.objectForPrimaryKey(Article.self, key: id) else {
return
}
request.performRequestWithHandler { (data, response, error) in
if let error = error {
return
}
...
try! realm.write {
tweet.unread = false
}
}
}
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Multi thread
[email protected]
func updateUnread(id: String) {
let realm = try! Realm()
guard let tweet = realm.objectForPrimaryKey(Article.self, key: id) else {
return
}
request.performRequestWithHandler { (data, response, error) in
if let error = error {
return
}
...
try! realm.write {
tweet.unread = false
}
}
}
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Multi thread
[email protected]
func updateUnread(id: String) {
let realm = try! Realm()
guard let tweet = realm.objectForPrimaryKey(Article.self, key: id) else {
return
}
request.performRequestWithHandler { (data, response, error) -> Void in
if let error = error {
return
}
let realm = try! Realm()
if let tweet = realm.objectForPrimaryKey(Tweet.self, key: id) {
try! realm.write {
tweet.favorited = !tweet.favorited
}
}
}
}
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Multi thread
[email protected]
func updateUnread(id: String) {
let realm = try! Realm()
guard let tweet = realm.objectForPrimaryKey(Article.self, key: id) else {
return
}
request.performRequestWithHandler { (data, response, error) -> Void in
if let error = error {
return
}
let realm = try! Realm()
if let tweet = realm.objectForPrimaryKey(Tweet.self, key: id) {
try! realm.write {
tweet.favorited = !tweet.favorited
}
}
}
}
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Best practice
[email protected]
var timeline: Results?
var notificationToken: NotificationToken?
override func viewDidLoad() {
super.viewDidLoad()
...
let realm = try! Realm()
timeline = realm.objects(Article.self)
.sorted("creationDate", ascending: false)
notificationToken = timeline?.addNotificationBlock { [weak self] (results, error) in
if let _ = error {
return
}
self?.tableView.reloadData()
}
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return timeline?.count ?? 0
}
func getTimeline() {
...
request.performRequestWithHandler { (data, response, error) -> Void in
if let error = error {
self.showAlert(error.localizedDescription)
return
}
let articles = try NSJSONSerialization.JSONObjectWithData(data, options: [])
let realm = try! Realm()
try! realm.write {
articles.forEach { (article) -> () in
...
realm.add(article, update: true)
}
}
}
}
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Best practice
[email protected]
var timeline: Results?
var notificationToken: NotificationToken?
override func viewDidLoad() {
super.viewDidLoad()
...
let realm = try! Realm()
timeline = realm.objects(Article.self)
.sorted("creationDate", ascending: false)
notificationToken = timeline?.addNotificationBlock { [weak self] (results, error) in
if let _ = error {
return
}
self?.tableView.reloadData()
}
}
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Best practice
[email protected]
func getTimeline() {
...
request.performRequestWithHandler { (data, response, error) -> Void in
if let error = error {
self.showAlert(error.localizedDescription)
return
}
let articles = try NSJSONSerialization.JSONObjectWithData(data, options: [])
let realm = try! Realm()
try! realm.write {
articles.forEach { (article) -> () in
...
realm.add(article, update: true)
}
}
}
}
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Best practice
[email protected]
func getTimeline() {
...
request.performRequestWithHandler { (data, response, error) -> Void in
if let error = error {
self.showAlert(error.localizedDescription)
return
}
let articles = try NSJSONSerialization.JSONObjectWithData(data, options: [])
let realm = try! Realm()
try! realm.write {
articles.forEach { (article) -> () in
...
realm.add(article, update: true)
}
}
}
}
فٓ؎ؤؗ٦ⵃ欽׃ג
鷄⸇،حفر٦ز
傀㶷ך3FTVMUTכ荈⹛涸ח
剑倜ךⰻ㺁ח刿倜ׁ
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Migration Tips
[email protected]
let config = Realm.Configuration(schemaVersion: 1,
migrationBlock: { (migration, oldSchemaVersion) in
migration.enumerate("") { (oldObject, newObject) in
...
}
})
Realm.Configuration.defaultConfiguration = config
let realm = try! Realm()
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Migration Tips
[email protected]
let config = Realm.Configuration(schemaVersion: 1,
migrationBlock: { (migration, oldSchemaVersion) in
migration.enumerate("") { (oldObject, newObject) in
...
}
})
Realm.Configuration.defaultConfiguration = config
let realm = try! Realm()
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Migration Tips
[email protected]
let config = Realm.Configuration(schemaVersion: 1)
Realm.Configuration.defaultConfiguration = config
let realm = try! Realm()
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Migration Tips
[email protected]
class User: Object {
dynamic var id = 0
dynamic var name = ""
}
class User: Object {
dynamic var id = 0
dynamic var name = ""
dynamic var age 0
}
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Migration Tips
[email protected]
class User: Object {
dynamic var id = 0
dynamic var firstname = ""
dynamic var lastname = ""
}
class User: Object {
dynamic var id = 0
dynamic var fullname = ""
}
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List is ordered
[email protected]
class Data: Object {
dynamic var name = ""
...
dynamic var order = 0 // ฒସ͑ͷͨΊͷΧϥϜ͕ඞཁ
}
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List is ordered
[email protected]
override func tableView(tableView: UITableView,
moveRowAtIndexPath sourceIndexPath: NSIndexPath,
toIndexPath destinationIndexPath: NSIndexPath) {
try! realm.write {
let sourceObject = objects[sourceIndexPath.row]
let destinationObject = objects[destinationIndexPath.row]
let destinationObjectOrder = destinationObject.order
if sourceIndexPath.row < destinationIndexPath.row {
// ্͔ΒԼʹҠಈͨ͠߹ɺؒͷ߲Λ্ʹγϑτ
for index in sourceIndexPath.row...destinationIndexPath.row {
let object = objects[index]
object.order -= 1
}
} else {
// Լ͔Β্ʹҠಈͨ͠߹ɺؒͷ߲ΛԼʹγϑτ
for index in (destinationIndexPath.row..
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List is ordered
[email protected]
class Article: Object {
dynamic var name = ""
...
dynamic var order = 0 // ฒସ͑ͷͨΊͷΧϥϜ͕ඞཁ
}
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List is ordered
[email protected]
override func tableView(tableView: UITableView,
moveRowAtIndexPath sourceIndexPath: NSIndexPath,
toIndexPath destinationIndexPath: NSIndexPath) {
try! realm.write {
let sourceObject = objects[sourceIndexPath.row]
let destinationObject = objects[destinationIndexPath.row]
let destinationObjectOrder = destinationObject.order
if sourceIndexPath.row < destinationIndexPath.row {
// ্͔ΒԼʹҠಈͨ͠߹ɺؒͷ߲Λ্ʹγϑτ
for index in sourceIndexPath.row...destinationIndexPath.row {
let object = objects[index]
object.order -= 1
}
} else {
// Լ͔Β্ʹҠಈͨ͠߹ɺؒͷ߲ΛԼʹγϑτ
for index in (destinationIndexPath.row..
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List is ordered
[email protected]
class ArticlesWrapper: Object {
let articles = List
}
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List is ordered
[email protected]
override func tableView(tableView: UITableView,
moveRowAtIndexPath sourceIndexPath: NSIndexPath,
toIndexPath destinationIndexPath: NSIndexPath) {
try! realm.write {
let sourceObject = objects[sourceIndexPath.row]
objects.removeAtIndex(sourceIndexPath.row)
objects.insert(sourceObject, atIndex: destinationIndexPath.row)
}
}
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List is ordered
[email protected]
class Category: Object {
dynamic var name = ""
let articles = List
}
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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]
[email protected]