Gravity Form Incremental ID Generation

hi all,

Ive read from this post

http://www.gravityhelp.com/forums/topic/guid-entry-id

and i made an updated code for generating Incremental ID generation

<?php
 add_filter("gform_pre_render", "process_unique");
function process_unique($form) {
    global $uuid;
    $uuid['form_id'] = $form['id'];

	switch($form['id']) {
	case 6:							//form ID
        $uuid['field_id'] = 60;		//field ID on the form
        break;
	case 14:						//form ID
        $uuid['field_id'] = 158;	//field ID on the form
        break;
	case 12:						//form ID
        $uuid['field_id'] = 158;	//field ID on the form
        break;
    case 11:						//form ID
        $uuid['field_id'] = 34;		//field ID on the form
        break;

    }

    add_filter("gform_field_value_uuid", "get_unique");
    return $form;
}

function get_unique(){
    global $uuid;
	$form_id = $uuid['form_id'];
    $field_id = $uuid['field_id'];

    switch($form['id']) {
	case 6:
		$prefix = "FOHSRF # - ";	//prefix for different forms
        break;
    case 14:
		$prefix = "VSRF # - ";		//prefix for different forms
        break;
	case 12:
		$prefix = "VSRF # - ";		//prefix for different forms
        break;
    case 11:
		$prefix = "VSDEIF # - ";	//prefix for different forms
        break;
    }

    do {
		$formid = $form_id; //get ID of the form
		$form_count = RGFormsModel::get_form_counts($formid);
        $unique = $form_count['total'] + 1; // count of the lead form entries incremented by one
		$unique = str_pad($unique, 3, '0', STR_PAD_LEFT); // padding for number format 001,002...015 so 3 digit number format
        $unique = $prefix . $unique; // prefix and the unique number
    } while (!check_unique($unique, $form_id, $field_id));

    return $unique;
}

function check_unique($unique, $form_id, $field_id) {
    global $wpdb;

    $table = $wpdb->prefix . 'rg_lead_detail';
    $result = $wpdb->get_var("SELECT value FROM $table WHERE form_id = '$form_id' AND field_number = '$field_id' AND value = '$unique'");

    if(empty($result))
        return true;

    return false;
}
?>

hope this helps.
cheers,

Do you happen to have a site that is using this code for a visual of it?
Thanks