// Setup Drag and Drop fields
$aDropFields = array();
$aDropFieldTypes = array();
array_push($aDropFields, 'pdf_file_drop');
array_push($aDropFieldTypes, 'pdf');
// if form was submitted:
if ($_POST['commit'] == "Cancel") {
    header("Location:information_list.php");
    exit;
}
if ($_POST['commit'] == "Save Information") {
    if ($id == 0) {
        // add the listing
        $objInformation = new Information();
        $objInformation->Title = $_REQUEST['title'];
        $objInformation->Create();
        $objInformation->HandleFileUploads();
        $objInformation->HandleDropFileUploads($aDropFields[0], 'PdfFile');
        // redirect to listing list
        header("Location:information_list.php");
        exit;
    } else {
        $objInformation = new Information($_REQUEST["id"]);
        $objInformation->Title = $_REQUEST['title'];
        $objInformation->Update();
        $objInformation->HandleFileUploads();
        $objInformation->HandleDropFileUploads($aDropFields[0], 'PdfFile');
        // redirect to listing list
        header("Location:information_list.php");
        exit;
    }