I created a login page backed up by CloudKit. I want to know how to create a conditioned segue if the login has a certain value, and then direct the user to a View Controller based on that value
In details, I have three Segues I want to connect:
sign in id segue:
LoginSuccessSegue
staff tab bar id segue:
idStaffTabBar
student tab bar id segue:
idStudentTabBar
First Segue
LoginSuccessSegue
:
the sign in view controller has a show segue id LoginSuccessSegue the connects to staff tab bar controller and student tab bar controller.
Second Segue
idStaffTabBar
:
After queryProfileType()
is executed, it will look for the profile type in a list to check if the user profile is a teacher value or something else. Then if that is true "LoginSuccessSegue" will automatically take the user to staff tab bar controller, "StaffBookedVC.self" by usingits segue
idStaffTabBar `
Third Segue
idStudentTabBar
:
if the user is not a teacher then after pressing the sign in button redirect to student tab bar controller, "stdBookingVC.self" by using idStudentTabBar or
How can I achieve an automatic conditional sign in in multiple views suing segues and cloud kit query?
This is the code for the sign-in button:
@IBAction func btnSignInTapped(sender: UIButton)
{
let userEmailAddress = userEmailAddressTextField.text
let userPassword = userPasswordTextField.text
if(userEmailAddress!.isEmpty || userPassword!.isEmpty)
{
notifyUser("Empty fields", message: "all fields are required")
}
print("fetching is in progress")
queryProfileType()
print("\nfetching had stopped")
}//end of signInbtn
func queryProfileType()
{
queryCredentials()
print("\nProfile Query starting")
//execute query
let organizers = ["Teacher || Youtuber || Instagrammer || "]
let predicate = NSPredicate(format: "ProfileType = '\(organizers)' ")
print("\nThis is the predicate\n\(predicate)")
let query = CKQuery(recordType: "RegisteredAccounts", predicate: predicate)
publicDatabase!.performQuery(query, inZoneWithID: nil) { results, error in
if (error != nil)
{
print(error)
}else
{
if (results! == organizers)
{
self.performSegueWithIdentifier("idStaffTabBar", sender: StaffBookedVC.self)
}else{
self.performSegueWithIdentifier("idStudentTabBar", sender: stdBookingVC.self)
}
print("\(results)\nthese are the printed results")
}
}
let firstFetch = CKFetchRecordsOperation()
let secondFetch = CKFetchRecordsOperation()
secondFetch.addDependency(firstFetch)
let queue = NSOperationQueue()
queue.addOperations([firstFetch, secondFetch], waitUntilFinished: false)
}
here is a picture of the storyboard segues Storyboard
if your answer will contain these methods, please show me some examples: shouldPerformSegueWithIdentifier and prepareForSegue
this did not work from me either
self.presentViewController(SignInNavigationVCTabBars, animated: true,
{ results, error in
if (results! == organizers)
{
self.performSegueWithIdentifier("idStaffTabBar", sender: StaffUITABbarVC.self)
}else{
self.performSegueWithIdentifier("idStudentTabBar", sender: StdUITABbarVC.self)
}
}
`
Here is the answer
I did not expect valueforkey would have it all what can I see? never stop trying
//log in function
func queryCredentials()
{
print("*********\nQueryCredentials starting")
// System indicator
let spinningActivity = MBProgressHUD.showHUDAddedTo(self.view, animated: true)
spinningActivity.labelText = "Signing in"
spinningActivity.detailsLabelText = "Please wait"
// querying predicate in cloud kit to check via email and password property
let predicate = NSPredicate(format: "Email = %@", userEmailAddressTextField.text!)
let query = CKQuery(recordType: "RegisteredAccounts", predicate: predicate)
publicDatabase?.performQuery(query, inZoneWithID: nil,
completionHandler: ({results, error in
if (error != nil)
{
dispatch_async(dispatch_get_main_queue())
{
// if the user is not signed, display this error
self.notifyUser("Cloud Access Error",
message: "to fix this error Sign in you icloud \n go to settings\nthen sign in icloud account\n error code:\(error!.localizedDescription)")
}
}else
{
if (results!.count > 0)
{
// the results after success case of the query
let record = results![0] as! CKRecord
// read from the result to navigate via profiletype attribute
let proftype = record.valueForKey("ProfileType") as! String
switch proftype
{
case("Teacher"):
self.staffView()
break;
case("Manager"):
self.staffView()
break;
case("Student"):
// stdView() is a student coded segue as a function to navigate to student view
self.stdView()
break;
case("Worker"):
self.stdView()
break;
default:
break;
}
self.currentRecord = record
dispatch_async(dispatch_get_main_queue())
{
// if credentials are correct, display you are logged in
self.userPasswordTextField!.text =
record.objectForKey("Password") as! String
self.notifyUser("Welcome", message: "You are loogedin")
}
}else
{
dispatch_async(dispatch_get_main_queue())
{
self.notifyUser("No Match Found",
message: "No record matching")
}
}
}
}))
// hiding indicator
spinningActivity.hide(true)
}