[FIX] website_sale: avoid non-invertible dependency

closes odoo/odoo#36020

Signed-off-by: Raphael Collet (rco) <rco@openerp.com>

addons/website_sale/models/sale_order.py

@@ -34,7 +34,7 @@ class SaleOrder(models.Model):
         for order in self:
             order.website_order_line = order.order_line
 
-    @api.depends('website_order_line.product_uom_qty', 'website_order_line.product_id')
+    @api.depends('order_line.product_uom_qty', 'order_line.product_id')
     def _compute_cart_info(self):
         for order in self:
             order.cart_quantity = int(sum(order.mapped('website_order_line.product_uom_qty')))

addons/website_sale/models/website.py

@@ -15,7 +15,9 @@ class Website(models.Model):
     _inherit = 'website'
 
     pricelist_id = fields.Many2one('product.pricelist', compute='_compute_pricelist_id', string='Default Pricelist')
-    currency_id = fields.Many2one('res.currency', related='pricelist_id.currency_id', related_sudo=False, string='Default Currency', readonly=False)
+    currency_id = fields.Many2one('res.currency',
+        related='pricelist_id.currency_id', depends=(), related_sudo=False,
+        string='Default Currency', readonly=False)
     salesperson_id = fields.Many2one('res.users', string='Salesperson')
 
     def _get_default_website_team(self):