【发布时间】：2016-09-10 21:38:23
【问题描述】：
我正在尝试将用户保存到我的 firebase 数据库。我使用FBSDKLoginManager() 创建帐户/登录。创建帐户后，我想将用户存储到我的firebase 数据库中。我目前可以让用户登录，他们的电子邮件会显示在 firebase 的 Auth 选项卡中（见截图），但我的 updateChildValues 似乎没有任何影响（另见截图）。
我是否将updateChildValues 放置在正确的位置？它目前位于signInWithCredential 内。我还必须执行 FBSDKGraphRequest 来获取我有兴趣存储在我的 firebase 数据库中的信息。
我的 Firebase 的 Auth 选项卡显示身份验证正在工作：
func showLoginView() {
let loginManager = FBSDKLoginManager()
loginManager.logInWithReadPermissions(fbPermissions, fromViewController: self, handler: { (result:FBSDKLoginManagerLoginResult!, error:NSError!) -> Void in
if ((error) != nil) {
print("Error loggin in is \(error)")
} else if (result.isCancelled) {
print("The user cancelled loggin in")
} else {
// No error, No cancelling:
// using the FBAccessToken, we get a Firebase token
let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)
// using the credentials above, sign in to firebase to create a user session
FIRAuth.auth()?.signInWithCredential(credential) { (user, error) in
print("User logged in the firebase")
// adding a reference to our firebase database
let ref = FIRDatabase.database().referenceFromURL("https://project-12345.firebaseio.com/")
// guard for user id
guard let uid = user?.uid else {
return
}
// create a child reference - uid will let us wrap each users data in a unique user id for later reference
let usersReference = ref.child("users").child(uid)
// performing the Facebook graph request to get the user data that just logged in so we can assign this stuff to our Firebase database:
let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, email"])
graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in
if ((error) != nil) {
// Process error
print("Error: \(error)")
} else {
print("fetched user: \(result)")
// Facebook users name:
let userName:NSString = result.valueForKey("name") as! NSString
self.usersName = userName
print("User Name is: \(userName)")
print("self.usersName is \(self.usersName)")
// Facebook users email:
let userEmail:NSString = result.valueForKey("email") as! NSString
self.usersEmail = userEmail
print("User Email is: \(userEmail)")
print("self.usersEmail is \(self.usersEmail)")
// Facebook users ID:
let userID:NSString = result.valueForKey("id") as! NSString
self.usersFacebookID = userID
print("Users Facebook ID is: \(userID)")
print("self.usersFacebookID is \(self.usersFacebookID)")
}
})
// set values for assignment in our Firebase database
let values = ["name": self.usersName, "email": self.usersEmail, "facebookID": self.usersFacebookID]
// update our databse by using the child database reference above called usersReference
usersReference.updateChildValues(values, withCompletionBlock: { (err, ref) in
// if there's an error in saving to our firebase database
if err != nil {
print(err)
return
}
// no error, so it means we've saved the user into our firebase database successfully
print("Save the user successfully into Firebase database")
})
}
}
})
}
更新：
显然在 10 分钟左右后，数据库已更新为空的 Facebook 数据……不知道为什么要花这么长时间。截图如下：
【问题讨论】：
标签： swift firebase firebase-realtime-database facebook-login firebase-authentication