[FIX] website_sale: Coupon Code

The pricelist linked to the coupon code is just applied in the cart.
In the shop, the pricelist of the user is applied.

opw:634639

addons/website_sale/controllers/main.py

@@ -934,11 +934,14 @@ class website_sale(http.Controller):
         return ret
 
     @http.route(['/shop/get_unit_price'], type='json', auth="public", methods=['POST'], website=True)
-    def get_unit_price(self, product_ids, add_qty, **kw):
+    def get_unit_price(self, product_ids, add_qty, use_order_pricelist=False, **kw):
         cr, uid, context, pool = request.cr, request.uid, request.context, request.registry
         products = pool['product.product'].browse(cr, uid, product_ids, context=context)
         partner = pool['res.users'].browse(cr, uid, uid, context=context).partner_id
-        pricelist_id = request.session.get('sale_order_code_pricelist_id') or partner.property_product_pricelist.id
+        if use_order_pricelist:
+            pricelist_id = request.session.get('sale_order_code_pricelist_id') or partner.property_product_pricelist.id
+        else:
+            pricelist_id = partner.property_product_pricelist.id
         prices = pool['product.pricelist'].price_rule_get_multi(cr, uid, [], [(product, add_qty, partner) for product in products], context=context)
         return {product_id: prices[product_id][pricelist_id][0] for product_id in product_ids}
 

addons/website_sale/static/src/js/website_sale.js

@@ -56,7 +56,8 @@ $('.oe_website_sale').each(function () {
         if (isNaN(value)) value = 0;
         openerp.jsonRpc("/shop/get_unit_price", 'call', {
             'product_ids': product_ids,
-            'add_qty': value})
+            'add_qty': value,
+            'use_order_pricelist': true})
         .then(function (res) {
             //basic case
             $dom.find('span.oe_currency_value').last().text(res[product_id].toFixed(2));