在SWIFT 3.0

Question

解析問題我在行面臨的問題火力地堡數據，讓用戶=用戶（快照：代碼FIRDataSnapshot）當我用考取到我的模型類之前打印的代碼值是這樣的：

Snap (p5ZmlWTnZuWmCUFIS3KEVFCwoaB2) { 
    addressLine = "K-03"; 
    bookingPayment =  { 
    bookingPayment1474215359 =   { 
     cardType = Visa; 
     date = "19/09/2016"; 
     duration = 1; 
     expirationDate = "12/2020"; 
     facilityId = facility1474021328102; 
     facilityName = "Conference Hall"; 
     fromDate = "20/09/2016"; 
     fromTime = "6:32 AM"; 
     id = bookingPayment1474215359; 
     imageUrl = 「www.google.com」; 
     issuingBank = Unknown; 
     last4 = 1881; 
     paidAmount = 200; 
     time = "12:15 AM"; 
     toDate = "20/09/2016"; 
     toTime = "7:32 AM"; 
     uid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
    }; 
    bookingPayment1474215539 =   { 
     cardType = Visa; 
     date = "19/09/2016"; 
     duration = 1; 
     expirationDate = "12/2020"; 
     facilityId = facility1474021328102; 
     facilityName = "Conference Hall"; 
     fromDate = "20/09/2016"; 
     fromTime = "7:32 AM"; 
     id = bookingPayment1474215539; 
     imageUrl = 「www.google.com」; 
     issuingBank = Unknown; 
     last4 = 1881; 
     paidAmount = 200; 
     time = "12:18 AM"; 
     toDate = "20/09/2016"; 
     toTime = "8:32 AM"; 
     uid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
    }; 
}; 
checkedIn = 1; 
email = 「abcd@xxxxxxx.com"; 
name = 「abcd"; 
notificationPreference =  { 
    bus = 1; 
    foodDelivery = 1; 
    garbageCollector = 1; 
    postman = 1; 
    taxi = 1; 
}; 
password = 123456; 
phone = 0174802580; 
playerId = "95eab868-8c80-47cc-b22a-cd8c07c8a258"; 
status = SOS; 
timestamp = 1474444615518; 
uid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
uniqueCode = IT3VXAALSAQ8M; 
url = ""; 
visitor =  { 
    "visitor20160921_142054" =   { 
     arriveGuardId = guard1473917758421; 
     arriveTimestamp = 1474438855260; 
     carPlate = Djjdjsfn; 
     departGuardId = guard1473917758421; 
     departTimestamp = 1474440472751; 
     ic = Lellss; 
     id = "visitor20160921_142054"; 
     late = 0; 
     name = Bick; 
     pendingDepartTimestamp = 1474439100035; 
     phone = JFKd; 
     residentUid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
     status = History; 
     visitingTimestamp = 1474438914243; 
    }; 
    "visitor20160921_142312" =   { 
     arriveGuardId = guard1473917758421; 
     arriveTimestamp = 1474438994041; 
     carPlate = Djjdjsfn; 
     departTimestamp = 0; 
     ic = Lellss; 
     id = "visitor20160921_142312"; 
     late = 0; 
     name = 244; 
     pendingDepartTimestamp = 0; 
     phone = JFKd; 
     residentUid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
     status = Visiting; 
     visitingTimestamp = 1474439014801; 
    }; 
    "visitor20160921_144804" =   { 
     arriveGuardId = guard1473917758421; 
     arriveTimestamp = 1474440485858; 
     carPlate = Djjdjsfn; 
     departTimestamp = 0; 
     ic = Lellss; 
     id = "visitor20160921_144804"; 
     late = 0; 
     name = Bick; 
     pendingDepartTimestamp = 0; 
     phone = JFKd; 
     residentUid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
     status = Visiting; 
     visitingTimestamp = 1474441499543; 
    }; 
    "visitor20160921_155225" =   { 
     arriveGuardId = guard1473917758421; 
     arriveTimestamp = 1474444346180; 
     carPlate = Ajx4563; 
     departGuardId = guard1473917758421; 
     departTimestamp = 1474444514132; 
     ic = 9102827182910; 
     id = "visitor20160921_155225"; 
     late = 0; 
     name = Nick; 
     pendingDepartTimestamp = 1474444476399; 
     phone = 0174802580; 
     residentUid = p5ZmlWTnZuWmCUFIS3KEVFCwoaB2; 
     status = History; 
     visitingTimestamp = 1474444388517; 
    }; 
}; 
} 

---

func getData() { 

    reference_user.observe(.value, with: { snapshot in 
     var userData: [Users] = [] 
     for code in snapshot.children { 
      print(code) 
      **let user = Users(snapshot: code as! FIRDataSnapshot)** 
      print(user) 
     } 
    }) 
} 

和解析用戶的價值之後。當我打印它給this.Means befor解析位訪客有4個記錄的用戶，但分析之後它給我的只有第一record.Here是

Users(key: "p5ZmlWTnZuWmCUFIS3KEVFCwoaB2", 
    name: "abcd", 
    email: "abcd@xxxxxxx.com", 
    password: "123456", 
    phone: "0174802580", 
    unit: "", 
    uniqueCode: "IT3VXAALSAQ8M", 
    status: "SOS", 
    checkedIn: true, 
    accountStatus: "", 
    accountType: "", 
    addressLine: "K-03", 
    playerId: "95eab868-8c80-47cc-b22a-cd8c07c8a258", 
    signUpTimestamp: 0, 
    uid: "p5ZmlWTnZuWmCUFIS3KEVFCwoaB2", 
     notificationPreference: { 
bus = 1; 
foodDelivery = 1; 
garbageCollector = 1; 
postman = 1; 
taxi = 1; 
}, 
visitor: Optional(Appname.UserVisitor(username: Optional("Bick"),   
userstatus: Optional("History"), 
userdepartTimestamp: 1474440472751,   
arriveGuardId: "guard1473917758421", 
arriveTimestamp: 1474438855260, 
carPlate: "Djjdjsfn", 
ic: "Lellss", 
phone: "JFKd", 
visitor_id: 
"visitor20160921_142054")), 
ref: https://appname.firebaseio.com/user/p5ZmlWTnZuWmCUFIS3KEVFCwoaB2) 

Answer 1

在func getData，你定義的Users數組 - 但你從不附加解析的記錄