[FIX]hs_code_link: properly declare OCA hs_code field on product.template

Before the change, the field was not being updated after the value of the H.S. Code was changed on a Product Template. The related stored field was not working fine with the company dependent field. As the `hs_code_id` field is company dependent, we can have the `hs_code` on the product.template as a computed non-stored to be computed based on the `force_company` value of the context, just as in the company_dependent fields.

hs_code_link/__manifest__.py

@@ -1,4 +1,5 @@
 # Copyright 2017 Camptocamp SA
+# Copyright 2023 ForgeFlow <http://www.forgeflow.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 {
     "name": "HS Code Link",

hs_code_link/models/product.py

@@ -1,10 +1,17 @@
 # Copyright 2017 Camptocamp SA
+# Copyright 2023 ForgeFlow <http://www.forgeflow.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class ProductTemplate(models.Model):
     _inherit = "product.template"
 
-    hs_code = fields.Char(related="hs_code_id.hs_code", readonly=True, store=True)
+    # Make it compute non-stored as we will get the value from the bypassed company
+    hs_code = fields.Char(compute="_compute_hs_code")
+
+    @api.depends_context("force_company")
+    def _compute_hs_code(self):
+        for template in self:
+            template.hs_code = template.hs_code_id.hs_code

hs_code_link/readme/CONTRIBUTORS.rst

@@ -1 +1,2 @@
 * Denis Leemann <denis.leemann@camptocamp.com>
+* Guillem Casassas <guillem.casassas@forgeflow.com>