我有一个 Eureka 表单 View 的用户配置文件。在此空间中，用户可以更新他们的个人资料。如果用户单击“保存”，则会调用此函数。
func saveProfileSettings(){
let userID = user?.uid
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd"
let PROFILE_DISPLAY_NAME_REF: NameRow? = form.rowBy(tag: Constants.PROFILE_DISPLAY_NAME)
let PROFILE_DISPLAY_NAME = PROFILE_DISPLAY_NAME_REF?.value
let PROFILE_EMAIL_REF: EmailRow? = form.rowBy(tag: Constants.PROFILE_EMAIL)
let PROFILE_EMAIL = PROFILE_EMAIL_REF?.value
let PROFILE_PHONENUMBER_REF: PhoneRow? = form.rowBy(tag: Constants.PROFILE_PHONENUMBER)
let PROFILE_PHONENUMBER = PROFILE_PHONENUMBER_REF?.value
let PROFILE_BIRTH_AGE_REF: DateRow? = form.rowBy(tag: Constants.PROFILE_BIRTH_AGE)
let PROFILE_BIRTH_AGE_CONVERT = PROFILE_BIRTH_AGE_REF?.value
let PROFILE_BIRTH_AGE = formatter.string(from: PROFILE_BIRTH_AGE_CONVERT!)
let PROFILE_BIRTH_AGE_String = String(PROFILE_BIRTH_AGE)
let PROFILE_GENDER_REF: SegmentedRow<String>! = form.rowBy(tag: Constants.PROFILE_GENDER)
let PROFILE_GENDER = PROFILE_GENDER_REF.value
let PROFILE_GENDER_INTEREST_REF: SegmentedRow<String>! = form.rowBy(tag: Constants.PROFILE_GENDER_INTEREST)
let PROFILE_GENDER_INTEREST = PROFILE_GENDER_INTEREST_REF.value
let uploadPath = databaseRef.child("profiles").child(userID!)
let dataBlock = ["\(Constants.PROFILE_DISPLAY_NAME)": PROFILE_DISPLAY_NAME!, "\(Constants.PROFILE_EMAIL)": PROFILE_EMAIL!, "\(Constants.PROFILE_PHONENUMBER)": PROFILE_PHONENUMBER!, "\(Constants.PROFILE_BIRTH_AGE)": PROFILE_BIRTH_AGE_String!, "\(Constants.PROFILE_GENDER)": PROFILE_GENDER!, "\(Constants.PROFILE_GENDER_INTEREST)": PROFILE_GENDER_INTEREST!]
print("DataBlock \(dataBlock)")
uploadPath.setValue(dataBlock) { (error, datebaseRef) in
if error != nil{
print("Error Occured")
}
print("Profile Updated!")
}
}
该函数的工作是从表单中提取所有数据，将其放入数组中，然后上传到 firebase。如果用户单击“保存”并且不更新任何信息，一切都很好，但是如果他们编辑其个人资料并单击“保存”，则会导致错误。见下文。
assertion failed: Duplicate tag profileDisplayName: file /Users/brandonmayhew/Documents/Programming/X-Code Project's/ChristinaApp/Pods/Eureka/Source/Core/BaseRow.swift, line 172
2017-08-21 12:19:19.258586-0700 ChristinaApp[2615:926887] assertion failed: Duplicate tag profileDisplayName: file /Users/brandonmayhew/Documents/Programming/X-Code Project's/ChristinaApp/Pods/Eureka/Source/Core/BaseRow.swift, line 172
如果您想查看创建表单的代码，请参阅我的“viewDidLoad”
override func viewDidLoad() {
super.viewDidLoad()
self.startAnimating(Constants.animationSize, message: "Finding Your Profile", type: .ballZigZag)
//findImageURL()
//START
let userID = user?.uid
print("Logged in user: \(userID!)")
databaseRef.child("profiles").child(userID!).observe(.value, with: { (snapshot) in
let data = snapshot.value as? NSDictionary
let PROFILE_DISPLAY_NAME = data?[Constants.PROFILE_DISPLAY_NAME] as? String
let PROFILE_UID = data?[Constants.PROFILE_UID] as? String
let PROFILE_IMAGE = data?[Constants.PROFILE_IMAGE] as? String
let PROFILE_EMAIL = data?[Constants.PROFILE_EMAIL] as? String
let PROFILE_PHONENUMBER = data?[Constants.PROFILE_PHONENUMBER] as? String
let PROFILE_GENDER = data?[Constants.PROFILE_GENDER] as? String
let PROFILE_GENDER_INTEREST = data?[Constants.PROFILE_GENDER_INTEREST] as? String
let PROFILE_BIRTH_AGE = data?[Constants.PROFILE_BIRTH_AGE] as? String
let PROFILE_LATITUDE = data?[Constants.PROFILE_LATITUDE] as? String
let PROFILE_lONGITUDE = data?[Constants.PROFILE_lONGITUDE] as? String
self.form +++ Section("Personal Information")
<<< NameRow(){ row in
row.title = "Name"
row.placeholder = "Enter Name"
row.value = PROFILE_DISPLAY_NAME
row.tag = "\(Constants.PROFILE_DISPLAY_NAME)"
}
<<< EmailRow(){ row in
row.title = "Email"
row.placeholder = "Enter Email"
row.value = PROFILE_EMAIL
row.tag = "\(Constants.PROFILE_EMAIL)"
}
<<< PhoneRow(){ row in
row.title = "Phone Number"
row.placeholder = "Enter Phone Number"
row.value = PROFILE_PHONENUMBER
row.tag = "\(Constants.PROFILE_PHONENUMBER)"
}
<<< DateRow(){ row in
row.title = "Your Birth Year"
//Convert 'PROFILE_BIRTH_AGE' string to NSDATE
let date = NSDate()
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
let formattedDate = dateFormatter.date(from: PROFILE_BIRTH_AGE!)
row.value = formattedDate
row.tag = "\(Constants.PROFILE_BIRTH_AGE)"
}
+++ Section("Dating Settings")
<<< SegmentedRow <String> (){ row in
row.title = "I am"
row.options = ["Male", "Female"]
row.value = PROFILE_GENDER
row.tag = "\(Constants.PROFILE_GENDER)"
}
<<< SegmentedRow <String> (){ row in
row.title = "I'm interested in"
row.options = ["Male", "Female"]
row.value = PROFILE_GENDER_INTEREST
row.tag = "\(Constants.PROFILE_GENDER_INTEREST)"
}
+++ Section("Save Profile")
<<< ButtonRow() {
$0.title = "Save"
}
.onCellSelection { cell, row in
self.saveProfileSettings()
}
+++ Section("Come Back Later")
<<< ButtonRow() {
$0.title = "Sign Out"
}
.onCellSelection { cell, row in
self.signOut()
}
self.stopAnimating()
})
//STOP
}
我无法弄清楚是什么导致了此错误发生!
最佳答案
您面临的问题是由于添加具有相同标签字符串值的行或部分引起的。在 Eureka Forms 中，单元格甚至部分的标签应该是唯一的，因此如果您添加具有相同标签的 2 行，这将导致断言异常
您的代码的几个部分中有这种类型的行为，但我将以名称行为例
<<< NameRow(){ row in
row.title = "Name"
row.placeholder = "Enter Name"
row.value = PROFILE_DISPLAY_NAME
row.tag = "\(Constants.PROFILE_DISPLAY_NAME)"
}
如您所见 row.tag = "\(Constants.PROFILE_DISPLAY_NAME)" 这是导致问题的行，我假设 Constants.PROFILE_DISPLAY_NAME 是String 在项目的某些部分定义，此字符串不会更改，当您要从此方法添加第二个结果时
databaseRef.child("profiles").child(userID!).observe(.value, with: { (snapshot) in
您的应用崩溃是因为您第二次添加具有相同值“profileDisplayName”的 Constants.PROFILE_DISPLAY_NAME
解决此问题的方法
作为此问题的可能解决方案，您可以为获取的每个用户附加一个唯一值，例如 userID
修复了 NameRow 案例的代码
<<< NameRow(){ row in
row.title = "Name"
row.placeholder = "Enter Name"
row.value = PROFILE_DISPLAY_NAME
row.tag = "\(Constants.PROFILE_DISPLAY_NAME)\(userID)"
}
关于ios - 将 Eureka 表单数据上传到 firebase，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45804253/