pos/pos_to_weight_by_product_uom/models/product_product.py

# Copyright (C) 2018 - Today: GRAP (http://www.grap.coop)
# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).

from odoo import api, models


class ProductProduct(models.Model):
    _inherit = 'product.product'

    @api.onchange('uom_id', 'uom_po_id')
    def _onchange_uom(self):
        res = super(ProductProduct, self)._onchange_uom()
        if self.uom_id:
            self.to_weight = self.uom_id.to_weigh
        return res