Hello Muhammad i need help here, i had added a many2one field ('stock.warehouse') to website sale ( payment phase ) , but i still could not get the selected value by the user.

this is my code:

----> python

def _get_shop_payment_values(self, order, **kwargs):
    sup = super(WebsiteEcommerce, self)._get_shop_payment_values(order)
    company_id = request.env.user.company_id
    sup['jours'] = 'jours'
    sup['livraison_domicile'] = company_id.livraison_domicile
    sup['livraison_collect'] = company_id.livraison_collect
    sup['warehouses']=request.env['stock.warehouse'].sudo().search([])

    return sup

----> xml:

       <div class="form-group" attrs="{'inivisible':[('type_livraison','=','domicile')]}">

    <label for="warehouse" class="control-label">Magasin</label>
    <div class="col-md-5 col-sm-8">
        <select id="magasin" required="True" class="form-control" name="magasin"
                style="width: 432px; height: 35px;">
            <t t-foreach="warehouses" t-as="warehouse">
                <option t-att-value="warehouse.id" t-esc="warehouse.name"/>
            </t>
        </select>
    </div>
</div>

getting the selected value

    @http.route(['/shop/confirmation'], type='http', auth="public", website=True, sitemap=False)

def payment_confirmation(self, **post):
    print('post',**post)
    order = request.website.sale_get_order(force_create=1)
    print('current order', order)
    values = {key: post.get(key) for key in ('magasin')}
    print("VALLLLLLL", values)

    # print(post.get('livraison_domicile'))
    return super(WebsiteEcommerce, self).payment_confirmation()


but this still not working , i appreciate your help.