case 'departmentyears':
if (isset($_POST["inst_id"]) && isset($_POST["dep_id"])) {
$instID = $_POST["inst_id"];
$depID = $_POST["dep_id"];
$departmentyears = getData::getDepartmentYear($instID, $depID);
$departmentyears_Json = json_encode($departmentyears);
echo $departmentyears_Json;
}
break;
case 'groups':
if (isset($_POST["inst_id"]) && isset($_POST["acyear_id"]) && isset($_POST["dep_id"]) && isset($_POST["dep_year_id"])) {
$instID = $_POST["inst_id"];
$acyearID = $_POST["acyear_id"];
$depID = $_POST["dep_id"];
$depYearID = $_POST["dep_year_id"];
$returnGroups = getData::getGroups($instID, $acyearID, $depID, $depYearID);
$groups_Json = json_encode($returnGroups);
echo $groups_Json;
}
break;
case 'languages':
$all_languages = getData::getLanguages();
$all_languages_Json = json_encode($all_languages);
echo $all_languages_Json;
break;
case 'exams':
if (isset($_POST["inst_id"]) && isset($_POST["acyear_id"]) && isset($_POST["dep_id"]) && isset($_POST["dep_year_id"]) && isset($_POST["group_id"]) && isset($_POST["term"]) && isset($_POST["language_id"])) {
$instID = $_POST["inst_id"];
$acyearID = $_POST["acyear_id"];
$depID = $_POST["dep_id"];
$depYearID = $_POST["dep_year_id"];
