array_push($aDropFieldTypes, 'image');
// if form was submitted:
if ($_POST['commit'] == "Cancel") {
    header("Location:lighttest_list.php?cat=" . $_REQUEST['cat'] . "&light=" . $_REQUEST['light']);
    exit;
}
if ($_POST['commit'] == "Save Light Test") {
    if ($id == 0) {
        // insert
        $obj = new LightTest();
        $obj->LightId = $_REQUEST["light"];
        $obj->DarkText = $_REQUEST["dark_text"];
        $obj->LightText = $_REQUEST["light_text"];
        $obj->RgbaValue = $_REQUEST["rgba_value"];
        $obj->RgbaValueRight = $_REQUEST["rgba_value_right"];
        $obj->create();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'ImageFileDark');
        $obj->handleDropFileUploads($aDropFields[1], 'ImageFileLight');
        $obj->handleDropFileUploads($aDropFields[2], 'BackgroundImageFile');
        // redirect to listing list
        header("Location:lighttest_list.php?cat=" . $_REQUEST['cat'] . "&light=" . $_REQUEST['light']);
        exit;
    } else {
        // update
        $obj = new LightTest($id);
        $obj->DarkText = $_REQUEST["dark_text"];
        $obj->LightText = $_REQUEST["light_text"];
        $obj->RgbaValue = $_REQUEST["rgba_value"];
        $obj->RgbaValueRight = $_REQUEST["rgba_value_right"];
        $obj->update();