}
try {
$instructors = InstructorFetcher::retrieveAll();
if (isBtnUpdatePrsd()) {
$updateDone = 0;
$instructorId = trim($_POST['updateInstructorIdModal']);
$newInstructorFname = trim($_POST['instructorFnameUpdate']);
$newInstructorLname = trim($_POST['instructorLnameUpdate']);
$updateDone = false;
if (($instructor = getInstructor($instructorId, $instructors)) !== false) {
$oldInstructorFname = $instructor[InstructorFetcher::DB_COLUMN_FIRST_NAME];
$oldInstructorLname = $instructor[InstructorFetcher::DB_COLUMN_LAST_NAME];
$updateDone = $updateDone || Instructor::updateLname($instructorId, $newInstructorLname, $oldInstructorLname);
if (strcmp($newInstructorFname, $oldInstructorFname) !== 0) {
$updateDone = true;
Instructor::updateFname($instructorId, $newInstructorFname);
}
if (strcmp($newInstructorLname, $oldInstructorLname) !== 0) {
$updateDone = true;
Instructor::updateLname($instructorId, $newInstructorLname);
}
if (!$updateDone) {
throw new Exception("No new data inputted. Process aborted.");
}
//
header('Location: ' . BASE_URL . 'academia/instructors/success');
} else {
throw new Exception("Either you're trying to hack this app or something wrong went. In either case the\n developers were just notified about this.");
}
} else {
if (isBtnSavePrsd()) {