/lenasys/0.1

<?php

////Returns "loginSuccess=>true" if student login name and password is correct and list of course registrations the student is registered for, else "loginSuccess=>false";

////Parameters: loginName, password

////Returns loginSucces: true/false, array(courseName, courseOccasion)

 

//Prevents browsers (IE) from caching the response

header('Cache-Control: no-cache, must-revalidate');

header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');

header('Content-type: application/json; charset=utf-8'); 

 

include "dbconnect.php";

 

$queryString="SELECT Student.ssn

                          FROM Student

                          WHERE Student.loginName=:LOGINNAME

                                AND Student.passw=:PASSW;";

$stmt = $pdo->prepare($queryString);

$stmt->bindParam(':LOGINNAME', $_POST['loginName']);

$stmt->bindParam(':PASSW', $_POST['password']);

$stmt->execute();

$count=$stmt->rowCount();

if($count==1){ //login successfull

        $studentData=$stmt->fetch(PDO::FETCH_ASSOC);

        $queryString="SELECT StudentCourseRegistration.courseName, StudentCourseRegistration.courseOccasion

                                  FROM StudentCourseRegistration

                                  WHERE studentSsn=:SSN;";

        $stmt = $pdo->prepare($queryString);

        $stmt->bindParam(':SSN', $studentData['ssn']);

        $stmt->execute();

        $listOfCourseRegistrations=array();

        $courseRegistrations=$stmt->fetchAll(PDO::FETCH_ASSOC);

        foreach($courseRegistrations as $row){

                array_push($listOfCourseRegistrations, array('courseName'=>$row['courseName'],'courseOccasion'=>$row['courseOccasion']));

        }

        echo json_encode(array('loginSuccess' => 'true','courseRegistrations'=>$listOfCourseRegistrations));

} else {

        echo json_encode(array('loginSuccess' => 'false'));

}

 

?>