wrapp product in order detail - option (checkbox)

[ruisonika]

Hello everybody,
I need some help, i'm using prestashop 1.6 version...and i wanna setting a checkbox in order detail (cart first step checkout) for wrapping this product.
In ps_order_detail i added a new field (to receive 0/1).
In themes/my_theme/shopping-cart-product-line.tpl i've added in line 35 my checkbox
<input type="checkbox" id="paperGift_{$product.id_product}" name="paperGift_" value=""><label for="paperGift_{$product.id_product}"> Wrapp this product</label>

This is all easy...so and now i'm stuck, what i have to do...can anyone help me?