No Realm, No Life

Realm meetup #6 で発表したSync iOSでのRealmの活用についてです

Transcript

1. No Realm, No Life
   yohei SUGIGAMI
   Realm
   08/25 Realm Meetup #6
   

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3. iOS DBวྺ
   ɾ'.%#
   ɾ$PSF%BUB
   ɾ.BHJDBM3FDPSE
   ɾ:BQ%BUBCBTF
   ɾ0CKFDUJWF-FWFM%#
   ɾ$PVDICBTF-JUF
   ɾ3FBMN
   3FBMN
   㱺࣮੷͕͋ΓɺυΩϡϝϯτ΋ἧ͍ͬͯΔ
   ɹ࢖͍΍͍͢ɺύϑΥʔϚϯε͕ྑ͍ɺαϙʔτ͕ް͍
   

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4. ઃܭ͕Ϟμϯ
   

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5. ଎͞͸ਖ਼ٛ
   

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6. υΩϡϝϯτ͕ἧ͍ͬͯΔ
   

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7. αϙʔτ͕ް͍
   

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8. How using Realm
   

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9. Sync iOS
   ϏδωείϛϡχέʔγϣϯಛԽϝοηʔδϯάαʔϏε
   Powered by RealmCocoa
   

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10. For our UX requirements
    Ϣʔβʹ௨৴தͷ଴ͪΛײͤ͡͞ͳ͍Α͏ʹ
    㱺ઌಡΈऔಘɺ௨ৗऔಘͷΩϟογϡͷ׆༻
    Realm
    Ωϟγϡ
    

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11. For our UX requirements
    ೖྗதɺૹ৴த ࣦഊʣͳͲͷ్தঢ়ଶͷ෮ݩ
    㱺ঢ়ଶͷӬଓԽͷ׆༻
    Realm
    ӬଓԽ
    

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12. ̎ Realm Databases
    3FBMN͸ҟͳΔϑΝΠϧύεͰ%#Λ
    ෳ਺ಉ࣌ʹѻ͏͜ͱ͕Ͱ͖Δ
    Realm
    ӬଓԽ༻
    Ωϟγϡ༻
    㱺εΩʔϚఆٛ͸શ%#ڞ௨ʹͳΔͷͰ
    ݸผʹϚΠάϨʔγϣϯΛߦ͑ͳ͔ͬͨͨΊࠓճ͸ݟૹΓ
    

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13. $BSUpMF
    HJUIVCSFBMNSFBMNDPDPB
    ɹɹ
    How install realm-cocoa
    $BSUIBHFܦ༝ͰΠϯετʔϧ
    $PDPB1PETͩͱ4XJGUϥΠϒϥϦͷίϯύΠϧ͕௕͍ͨΊ

    4XJGUܥϥΠϒϥϦ͸ੵۃతʹ$BSUIBHFͰΠϯετʔϧ
    3FBMN4XJGUΛར༻
    ݄̔̎̏೔࣌఺ͷ࠷৽͸W
    

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14. Realm Objects
    (SPVQ
    6TFS
    6TFS
    .FTTBHF
    6TFS
    *NBHF
    'JMF
    <.FNCFSTIJQ> -JOL
    <.FOUJPO>
    5PUBMNPEFMT
    

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15. Introduce Realm
    ։ൃॳظ͔Β3FBMNΛಋೖͨ͠Θ͚Ͱ͸ͳ͘
    ։ൃͷ్த͔ΒಋೖʢΩϟγϡɺӬଓԽػߏͷͳ͍ঢ়ଶʣ
    1VSF$MBTTΛ3FBMN0CKFDUܧঝ
    ϓϩύςΟΛ3FBMNܗࣜʹ
    ؆୯ʹಋೖͰ͖·ͨ͠
    

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16. RealmObject
    final class Message: Object {
    dynamic var user = User()
    dynamic var image = MessageImage()
    dynamic var file = MessageFile()
    dynamic var link = MessageLink()
    dynamic var channelId = ""
    dynamic var content = ""
    var avatarImageURL: NSURL { return NSURL(string: user.avatarImageURL)! }
    class func fromJSONInner(json: JSON) -> Message {
    let message = Message()
    message.messageId = json["message_id"].stringValue
    message.content = json["content"].stringValue
    if json["image"].null == nil {
    message.image = MessageImage.fromJSON(json["image"])
    }
    if json["file"].null == nil {
    message.file = MessageFile.fromJSON(json["file"])
    }
    /463-͸1SJNJUJWF 4USJOH
    Ͱอଘͯ͠$PNQVUFE1SPQFSUZͰදݱ
    +40/͔Β0CKFDUΛ࡞੒
    

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17. RealmObject
    enum MobileNotificationPreference: String {
    case AllActivities = "all_activities"
    case OnlyMentions = "only_mentions"
    case Nothing = "nothing"
    }
    final class Group: Object {
    dynamic var mobileNotificationPreferenceRaw: String =
    MobileNotificationPreference.OnlyMentions.rawValue
    var mobileNotificationPreference: MobileNotificationPreference {
    return MobileNotificationPreference(rawValue: mobileNotificationPreferenceRaw)
    }
    FOVN΋ͦͷ··อଘͰ͖ͳ͍ͷͰ3BXͰอଘͯ͠
    $PNQVUFE1SPQFSUZͰදݱ
    

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18. RealmObject
    final class Message: Object {
    …

    override class func primaryKey() -> String {
    return "messageId"
    }
    override class func indexedProperties() -> [String] {
    return ["groupId"]
    }
    override class func ignoredProperties() -> [String] {
    return ["groupName"]
    }
    QSJNBSZ,FZ JOEFYFE1SPQFSUJFT JHOPSFE1SPQFSUJFTΛઃఆ
    

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19. RealmObject
    final class Message: Object {
    …

    class func find(pkey: String) -> Message? {
    return Realm().objectForPrimaryKey(Message.self, key: pkey)
    }
    class func findByChannel(groupId: String) -> Results {
    let predicate = NSPredicate(format: "groupId = %@", groupId)
    return Realm().objects(Message).filter(predicate)
    .sorted("createdAtRaw", ascending: false)
    }
    3FBMNͷPCKFDUܥϝιουΛϥοϓͯ͠4VHBS4ZOUBYΛ࡞੒
    

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20. Background
    // Queue
    let RealmBackgroundSaveQueue = dispatch_queue_create
    ("com.wantedly.sync.realm", DISPATCH_QUEUE_SERIAL)
    class func saveJSON(json: JSON, closure: (group: Group) -> Void) {
    Async.customQueue(RealmBackgroundSaveQueue) {
    Realm().write {
    let group = Group.fromJSON(json)
    Realm().add(group, update: true)
    }
    Async.main {
    let group = Group.fromJSON(json)
    closure(group: group)
    }
    }
    }
    3FBMNߋ৽ઐ༻ͷ4FSJBM2VFVFΛ࡞੒ͯ͠ஞ࣍తʹߋ৽
    #BDLHSPVOEͰ࡞੒ͨ͠3FBMN0CKFDU͸.BJOͰ৮ΔͱΫϥογϡ
    อଘ༻ͱར༻༻Ͱ෼͚ͯΠϯελϯεΛ࡞੒
    "TZOD͸4XJGUͷ($%Λϥοϓ͢ΔϥΠϒϥϦ
    

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21. Migration
    // MARK: Initialize
    extension AppDelegate {
    func initializeRealm() {
    let BuildVersion = NSBundle.mainBundle()
    .objectForInfoDictionaryKey("CFBundleVersion") as! String
    let thisVersion = UInt64(BuildVersion.toInt()!)
    setSchemaVersion(thisVersion, Realm.defaultPath) { migration, oldSchemaVersion in
    if oldSchemaVersion < thisVersion {
    // Nothing to do
    }
    }
    logger.debug("Realm Default Path [\(Realm.defaultPath)]")
    }
    }
    େ఍ͷ.JHSBUJPO͸ͱͬͯ΋؆୯
    4DIFNB7FSTJPOΛ্͛Δ͚ͩ
    4ZODͰ͸$'#VOEMF7FSTJPOͱ࿈ಈͯࣗ͠ಈԽ

    

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22. ɾ։ൃ͠΍͍͢
    ɾӡ༻͠΍͍͢
    ɾΤϯδχΞʹ΍͍͞͠
    Conclusion
    ɾ΋͏$PSF%BUBʹ͸໭Εͳ͍
    

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23. Enjoy Realm life.
    

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