update product

addons/kosbar_erp_ext/models/product_product.py

@@ -0,0 +1,13 @@
+from odoo import models, fields, api
+
+
+class ProductProduct(models.Model):
+    _inherit = 'product.product'
+
+    item_code = fields.Char(
+        string='Item Code',
+        related='product_tmpl_id.item_code',
+        store=True,
+        readonly=True,
+        help='Item Code dari template produk (variant menampilkan kode template).',
+    )