// handle post request
if (isset($_POST['apply'])) {
//prpost();
if (!isset($_POST['student_ids'])) {
$html->echoError("Please select students");
} elseif (!isset($_POST['months'])) {
$html->echoError("Please select months");
} else {
foreach ($_POST['student_ids'] as $stId) {
$student = $students[$stId];
$class = $student->clas();
foreach ($_POST['months'] as $m) {
// check if a voucher is already present for that month
// if not present, add a new fee voucher
// if present, add fee detail to it
if (!($feeVoucher = Fee_voucher::findOneByCondition("student_id={$stId} and month={$m}"))) {
$feeVoucher = new Fee_voucher();
$feeVoucher->student_id->val = $student->id->val;
$y = $m >= $class->starting_month->val ? $class->session->val : $class->session->val + 1;
$d = $student->last_date_for_fee_submission->val;
$feeVoucher->month->val = $m;
$feeVoucher->year->val = $y;
$feeVoucher->last_date->val = "{$y}-{$m}-{$d}";
$feeVoucher->issue_date->val = "{$y}-{$m}-01";
if (!$feeVoucher->dbSave()) {
$html->echoError("Fee Voucher not already saved. Failed to create a new one.");
}
}
// create fee voucher detail
$feeDetail = new Fee_voucher_datail();
$feeDetail->fee_voucher_id->val = $feeVoucher->id->val;
