Hello, i'm doing a new module that modify the Point of Sale interface. I  added a text field where i enter information like this :

<t t-extend="PaymentScreenWidget" >

    <t t-jquery="div.top-content" t-operation="replace">

        <div class='top-content'>

            <span class='button back'>

                <i class='fa fa-angle-double-left'></i>

                Back

            </span>

             <!-- i added this line-->

            <div><strong>Queue : </strong><input id="queue" type="text" placeholder="queue" name="queue"/></div>

            <h1>Payment</h1>

            <span class='button next'>

                Validate

                <i class='fa fa-angle-double-right'></i>

            </span>

        </div>

    </t>

</t>

and i want to display its value in the PosTicket when i click on validate. i tried to modify the javascript files (models.js, screen.js) but no luck. 

1) how can i get the text field value and display it on the PosTicket ? 

2) how to store it with the other ordre information in the database (i already added a new field in pos.ordre model)

Thanks