[IMP] mrp: manage actions without raw moves

If a manufacturing order doens't have any raw move, it now triggers a user error in case of action_confirm and simply change it's state in case of cancel.

Task: 1942231
Co-Authored-By: Hetal Dhanak <hdh-odoo@users.noreply.github.com>

addons/mrp/models/mrp_production.py

@@ -585,6 +585,8 @@ class MrpProduction(models.Model):
 
     def action_confirm(self):
         for production in self:
+            if not production.move_raw_ids:
+                raise UserError(_("Add some materials to consume before marking this MO as to do."))
             for move_raw in production.move_raw_ids:
                 move_raw.write({
                     'group_id': production.procurement_group_id.id,
@@ -761,6 +763,9 @@ class MrpProduction(models.Model):
     def action_cancel(self):
         """ Cancels production order, unfinished stock moves and set procurement
         orders in exception """
+        if not self.move_raw_ids:
+            self.state = 'cancel'
+            return True
         if any(workorder.state == 'progress' for workorder in self.mapped('workorder_ids')):
             raise UserError(_('You can not cancel production order, a work order is still in progress.'))
         documents = {}

addons/sale_mrp/tests/test_sale_mrp_procurement.py

@@ -40,8 +40,15 @@ class TestSaleMrpProcurement(TransactionCase):
         product.route_ids.add(warehouse0.mto_pull_id.route_id)
         product_template_slidermobile0 = product.save()
 
+        product_component = Form(self.env['product.product'])
+        product_component.name = 'Battery'
+        product_product_bettery = product_component.save()
+
         with Form(self.env['mrp.bom']) as bom:
             bom.product_tmpl_id = product_template_slidermobile0
+            with bom.bom_line_ids.new() as line:
+                line.product_id = product_product_bettery
+                line.product_qty = 4
 
         # I create a sale order for product Slider mobile
         so_form = Form(self.env['sale.order'])