I migrated my iOS code to FBSDK v4 + Parse 1.7.1 and I'm trying to handle the case of linking a user to a FB ID but it's already linked:
Another user is already linked to this facebook id. (Code: 208, Version: 1.7.1)
Everything seems to work fine after user logout and FB login but every time I alter or save the current user, or query a table, I get various errors such as:
Parse::UserCannotBeAlteredWithoutSessionError (Code: 206, Version: 1.7.1)
"PFKeychainStore" failed to set object for key 'currentUser'
no results matched the query (Code: 101, Version: 1.7.1)
Here is my code:
NSArray *permisions = [NSArray arrayWithObjects:@"public_profile", @"email", @"user_friends", nil];
[PFFacebookUtils linkUserInBackground:[PFUser currentUser] withReadPermissions:permissions block:^(BOOL succeeded, NSError *error) {
if(succeeded && !error) {
//... use data
}
else {
if(error.code == 208) {
[PFUser logOut];
[PFFacebookUtils logInInBackgroundWithReadPermissions:permissions block:^(PFUser *user, NSError *error) {
//here I get a valid user and no error but...
//after this point the errors mentioned start to show up
}
}
else
//... handle other errors
}
}];
I use Parse's automatic user until a user is linked to a FB account.
Would love some help about this, thanks!
Adding becomeInBackground stopped the error:
NSArray *permisions = [NSArray arrayWithObjects:@"public_profile", @"email", @"user_friends", nil];
[PFFacebookUtils linkUserInBackground:[PFUser currentUser] withReadPermissions:permissions block:^(BOOL succeeded, NSError *error) {
if(succeeded && !error) {
//... success
}
else {
if(error.code == kPFErrorFacebookAccountAlreadyLinked) {
[PFUser logOutInBackgroundWithBlock:^(NSError *error) {
if(!error) {
[PFFacebookUtils linkUserInBackground:[PFUser currentUser] withReadPermissions:permissions block:^(BOOL succeeded, NSError *error) {
[PFUser becomeInBackground:[[PFUser currentUser] sessionToken] block:^(PFUser *user, NSError *error) {
if(user && !error) {
// ... success
}
else {
//... handle become error
}
}];
}];
}
else {
// ... handle bad logout
}
}
else {
//... handle other errors
}
}
}];
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