Opencart option_value_id

OpenCart attaches an html value="" attribute to each <option> for <select> elements on Product pages. Currently it uses product_option_value_id. I need to change that to use the option_value_id from the oc_product_option_value table.

I have created a vQmod to replace this line in my theme's product.tpl file.

<option value="<?php echo $option_value['product_option_value_id']; ?>"><?php echo $option_value['name']; ?>

I tried using $option_value['option_value_id']; but that returns the product_option_id? I can't figure out what variable to use to achieve this for select options.

Do I need to write a new query to grab this data, or is this data in a variable that is visible already in product.tpl?

These are the contents of $this->data['options'] array:

Array
(
[0] => Array

        [product_option_id] => 300
        [option_id] => 5
        [name] => Select
        [type] => select
        [option_value] => Array

                [0] => Array

                        [product_option_value_id] => 110
                        [option_value_id] => 39
                        [name] => Red
                        [image] => 
                        [price] => 
                        [price_prefix] => +

                [1] => Array

                        [product_option_value_id] => 109
                        [option_value_id] => 40
                        [name] => Blue
                        [image] => 
                        [price] => 
                        [price_prefix] => +

        [required] => 1

[option_id] and [option_value_id] are constant for all products that have this option assigned. Is this what you are looking for?