// Setup Drag and Drop fields
$aDropFields = array();
$aDropFieldTypes = array();
array_push($aDropFields, 'item_presentation_image_url_drop');
array_push($aDropFieldTypes, 'image');
// if form was submitted:
if ($_POST['commit'] == "Cancel") {
    header("Location:itempresentationimage_list.php?cat=" . $_REQUEST['cat'] . "&item=" . $_REQUEST['item'] . "&itempres=" . $_REQUEST['itempres']);
    exit;
}
if ($_POST['commit'] == "Save Item Presentation Image") {
    if ($id == 0) {
        // insert
        $obj = new ItemPresentationImage();
        $obj->ItemPresentationId = $_REQUEST["itempres"];
        $obj->create();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'ItemPresentationImageUrl');
        // redirect to listing list
        header("Location:itempresentationimage_list.php?cat=" . $_REQUEST['cat'] . "&item=" . $_REQUEST['item'] . "&itempres=" . $_REQUEST['itempres']);
        exit;
    } else {
        // update
        $obj = new ItemPresentationImage($id);
        $obj->update();
        $obj->handleFileUploads();
        $obj->handleDropFileUploads($aDropFields[0], 'ItemPresentationImageUrl');
        // redirect to listing list
        header("Location:itempresentationimage_list.php?cat=" . $_REQUEST['cat'] . "&item=" . $_REQUEST['item'] . "&itempres=" . $_REQUEST['itempres']);
        exit;
    }