[IMP] mrp_repair: require lot immediately when creating repair lines

Instead of only checking when actually confirming the repair.

addons/mrp_repair/models/mrp_repair.py

@@ -116,6 +116,7 @@ class Repair(models.Model):
     amount_untaxed = fields.Float('Untaxed Amount', compute='_amount_untaxed', store=True)
     amount_tax = fields.Float('Taxes', compute='_amount_tax', store=True)
     amount_total = fields.Float('Total', compute='_amount_total', store=True)
+    tracking = fields.Selection('Product Tracking', related="product_id.tracking")
 
     @api.one
     @api.depends('partner_id')
@@ -215,9 +216,6 @@ class Repair(models.Model):
         before_repair.write({'state': '2binvoiced'})
         to_confirm = self - before_repair
         to_confirm_operations = to_confirm.mapped('operations')
-        for operation in to_confirm_operations:
-            if operation.product_id.tracking != 'none' and not operation.lot_id:
-                raise UserError(_("Serial number is required for operation line with product '%s'") % (operation.product_id.name))
         to_confirm_operations.write({'state': 'confirmed'})
         to_confirm.write({'state': 'confirmed'})
         return True
@@ -513,6 +511,11 @@ class RepairLine(models.Model):
         copy=False, readonly=True, required=True,
         help='The status of a repair line is set automatically to the one of the linked repair order.')
 
+    @api.constrains('lot_id', 'product_id')
+    def constrain_lot_id(self):
+        for line in self.filtered(lambda x: x.product_id.tracking != 'none' and not x.lot_id):
+            raise ValidationError(_("Serial number is required for operation line with product '%s'") % (line.product_id.name))
+
     @api.one
     @api.depends('price_unit', 'repair_id', 'product_uom_qty', 'product_id', 'repair_id.invoice_method')
     def _compute_price_subtotal(self):

addons/mrp_repair/views/mrp_repair_views.xml

@@ -52,13 +52,14 @@
                     </h1>
                     <group>
                         <group>
+                            <field name="tracking" invisible="1"/>
                             <field name="product_id" domain="[('type', 'in', ['product', 'consu'])]"/>
                             <label for="product_qty"/>
                             <div class="o_row">
                                 <field name="product_qty"/>
                                 <field name="product_uom" groups="product.group_uom"/>
                             </div>
-                            <field name="lot_id" domain="[('product_id', '=', product_id)]" context="{'default_product_id': product_id}" groups="stock.group_production_lot"/>
+                            <field name="lot_id" domain="[('product_id', '=', product_id)]" context="{'default_product_id': product_id}" groups="stock.group_production_lot" attrs="{'required': [('tracking', '!=', 'none')]}"/>
                             <field name="partner_id" attrs="{'required':[('invoice_method','!=','none')]}"/>
                             <field name="address_id" groups="sale.group_delivery_invoice_address"/>
                         </group>