19.0 vanilla

odoo-bringout-oca-ocb-product/product/models/product_uom.py

@@ -0,0 +1,32 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class ProductUom(models.Model):
+    _name = 'product.uom'
+    _description = 'Link between products and their UoMs'
+    _rec_name = 'barcode'
+
+    uom_id = fields.Many2one('uom.uom', 'Unit', required=True, index=True, ondelete='cascade')
+    product_id = fields.Many2one('product.product', 'Product', required=True, index=True, ondelete='cascade')
+    barcode = fields.Char(index='btree_not_null', required=True, copy=False)
+    company_id = fields.Many2one('res.company', 'Company', default=lambda self: self.env.company)
+
+    _barcode_uniq = models.Constraint('unique(barcode)', 'A barcode can only be assigned to one packaging.')
+
+    @api.constrains('barcode')
+    def _check_barcode_uniqueness(self):
+        """ With GS1 nomenclature, products and packagings use the same pattern. Therefore, we need
+        to ensure the uniqueness between products' barcodes and packagings' ones"""
+        domain = [('barcode', 'in', [b for b in self.mapped('barcode') if b])]
+        if self.env['product.product'].search_count(domain, limit=1):
+            raise ValidationError(_("A product already uses the barcode"))
+
+    def _compute_display_name(self):
+        if not self.env.context.get('show_variant_name'):
+            return super()._compute_display_name()
+        for record in self:
+            record.display_name = f"{record.barcode} for: {record.product_id.display_name}"