[FIX] website_quote: Take the template order line description if the

product is defined on the template

Also, implement 'back' button in quote template frontend edit mode

addons/website_quote/models/order.py

@@ -9,6 +9,7 @@ import datetime
 
 import openerp.addons.decimal_precision as dp
 from openerp import SUPERUSER_ID
+from openerp.tools import DEFAULT_SERVER_DATE_FORMAT
 from openerp.tools.translate import _
 
 
@@ -129,6 +130,16 @@ class sale_order_line(osv.osv):
         values = self._inject_quote_description(cr, uid, values, context)
         return super(sale_order_line, self).write(cr, uid, ids, values, context=context)
 
+    # The overrided onchange was written in new api, sorry
+    # Take the description on the order template if the product is present in it
+    @api.multi
+    @api.onchange('product_id')
+    def product_id_change(self):
+        domain = super(sale_order_line, self).product_id_change()
+        if self.order_id.template_id:
+            self.name = next((quote_line.name for quote_line in self.order_id.template_id.quote_line if quote_line.product_id.id == self.product_id.id), self.name) 
+        return domain
+
 
 class sale_order(osv.osv):
     _inherit = 'sale.order'
@@ -174,7 +185,7 @@ class sale_order(osv.osv):
 
         if partner:
             context = dict(context or {})
-            context['lang'] = self.pool['res.partner'].browse(cr, uid, partner, context).lang
+            context['lang'] = self.pool['res.partner'].browse(cr, uid, partner, context=context).lang
 
         pricelist_obj = self.pool['product.pricelist']
 
@@ -229,7 +240,7 @@ class sale_order(osv.osv):
             }))
         date = False
         if quote_template.number_of_days > 0:
-            date = (datetime.datetime.now() + datetime.timedelta(quote_template.number_of_days)).strftime("%Y-%m-%d")
+            date = (datetime.datetime.now() + datetime.timedelta(quote_template.number_of_days)).strftime(DEFAULT_SERVER_DATE_FORMAT)
         data = {
             'order_line': lines,
             'website_description': quote_template.website_description,

addons/website_quote/views/website_quotation.xml

@@ -570,6 +570,11 @@
                         </div>
                     </div>
                     <div class="col-md-9">
+                        <div class="row">
+                            <div t-ignore="true" class="css_editable_mode_hidden col-md-offset-11">
+                              <a class="btn btn-info hidden-print" t-att-href="'/web#return_label=Website&amp;model=%s&amp;id=%s&amp;action=%s&amp;view_type=form' % (template._name, template.id, request.env.ref('website_quote.action_sale_quotation_template').id)">Back</a>
+                            </div>
+                        </div>
                         <div class="alert alert-info alert-dismissable" t-ignore="True">
                             <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&amp;times;</button>
                             <p>