public function Update($id, $data)
 {
     $userDAO = new UserDAO();
     return $userDAO->Update($id, $data);
 }
 public function Update()
 {
     if (!parent::Update()) {
         return false;
     }
     $conn = parent::GetConnection();
     $this->RetrieveUserId();
     $query = $this->SetupQuery(Query::UPDATE_PATIENT);
     if (!odbc_exec($conn, $query)) {
         return $this->HandleError($conn);
     }
     return true;
 }
//UserDAO DB fields
$Username = $_POST["username"];
$Password = $_POST["password"];
$FirstName = $_POST["firstname"];
$MiddleName = $_POST["middlename"];
$LastName = $_POST["lastname"];
$Address = $_POST["address"];
$PhoneNumber = $_POST["phone"];
$UserClass = "Clinician";
$u = new UserDAO();
$u->Username = $Username;
$u->Password = $Password;
$u->FirstName = $FirstName;
$u->MiddleName = $MiddleName;
$u->LastName = $LastName;
$u->Address = $Address;
$u->PhoneNumber = $PhoneNumber;
$u->UserClass = $UserClass;
$u->Update();
header("Location: clinicians.php");
/*
$worked = $p->Insert();
if ($worked)
{
	header("Location: homepage.php?success=101");
}
else
{
	header("Location: add_patient.php?error=101");
}
*/