Question

我正在尝试将我的应用中的现有帐户链接到facebook帐户，但是在解析API中成功的参数始终返回false（无错误）我能够使用API创建新用户，发布和读取用户信息等，但当我尝试使用下面的代码链接帐户时，它总是失败：

func facebook(user: PFUser){
    let request = FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, picture.type(large), email"])
    request.startWithCompletionHandler { (connection:FBSDKGraphRequestConnection!, result:AnyObject!, error:NSError!) -> Void in
        if let error = error {
            println("error requesting FBSDKGraphRequest \(error.localizedDescription)")
        } else{
            let userData = result as! NSDictionary
            println(userData)
            let facebookID = userData["id"] as! String
            user.username = userData["name"] as? String
            if let email = userData["email"] as? String{

                //find user email on facebook
                user.email = email

                if let checkForUser = CreateConnection.findUserByEmail(email){

                    //find PFUser that have that email
                    println("find a match for old user on facebook")
                    if !PFFacebookUtils.isLinkedWithUser(checkForUser) {

                        //the PFUser that has the email is not already linked with facebook
                        PFFacebookUtils.linkUserInBackground(checkForUser, withReadPermissions: nil,  block: {
                            //link account in the background
                            (succeeded: Bool, error: NSError?) -> Void in
                             //no error return
                             if let error = error{
                                println("error linking user to facebook \(error.localizedDescription) ")
                            }
                            //succeeded return false
                            if succeeded  {
                                println("the user is now linked with Facebook!")
                            } else{
                                //this line is printed
                                println("link did not succeeded")

                            }
                        })
                    }
                } else{
                   //code to create a new account here
                }

这就是我在appDelegate中所拥有的：

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
}
        PFFacebookUtils.initializeFacebookWithApplicationLaunchOptions(launchOptions)

    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject?) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url,sourceApplication: sourceApplication, annotation: annotation)
    }

我注意到的另一个奇怪的行为是facebook屏幕授权应用程序弹出两次，一旦你按照预期点击登录，一旦调试器点击块linkUserInBackground结束（甚至进去之前）还）

Answer 1

只有经过身份验证的用户才能编辑自己的数据。用户无法编辑其他用户，甚至无法编辑ACL。我认为唯一的解决方案是使用云功能和万能钥匙。 https://parse.com/docs/cloudcode/guide#cloud-code

使用解析始终失败将旧的应用用户链接到Facebook帐户

1 个答案: