vracoop_pack_custo/models/sale_order.py

# © 2019 Le Filament (<http://www.le-filament.com>)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

from odoo import models, fields, api


class SaleOrder(models.Model):
    _inherit = "sale.order"

    @api.one
    def _compute_website_order_line(self):
        self.website_order_line = self.order_line.filtered(
            lambda t: not t.pack_parent_line_id.exists(),
        )

    @api.multi
    def _cart_update(self, product_id=None, line_id=None, add_qty=0, set_qty=0, **kwargs):
        self.ensure_one()
        if line_id is not False:
            order_line = self.env['sale.order.line'].browse(line_id)
        
            # order_line = self._cart_find_product_line(product_id, line_id, **kwargs)[:1]
            if order_line.pack_parent_line_id:
                return {'line_id': order_line.id, 'quantity': 0}
        
        return super(SaleOrder, self)._cart_update(product_id, line_id, add_qty, set_qty, **kwargs)