[IMP] mrp_production_hierarchy: Track the root production order on each generated sub-production orders + Display root order and direct parent order on the form

mrp_production_hierarchy/models/mrp_production.py

@@ -11,9 +11,12 @@ class MrpProduction(models.Model):
     _parent_store = True
     _parent_order = 'name'
 
+    root_id = fields.Many2one(
+        'mrp.production', u"Root order",
+        index=True, ondelete='restrict', readonly=True)
     parent_id = fields.Many2one(
         'mrp.production', u"Parent order",
-        index=True, ondelete='restrict')
+        index=True, ondelete='restrict', readonly=True)
     child_ids = fields.One2many(
         'mrp.production', 'parent_id', u"Child orders")
     parent_left = fields.Integer('Left Parent', index=True)
@@ -25,6 +28,10 @@ class MrpProduction(models.Model):
         It will be used by the 'procurement_order.make_mo()' overload to
         set the parent relation between production orders.
         """
+        # Set the initial root production order ID
+        if not self.env.context.get('root_mrp_production_id'):
+            self = self.with_context(root_mrp_production_id=self.id)
+        # Set the parent production order ID
         self = self.with_context(parent_mrp_production_id=self.id)
         return super(MrpProduction, self)._generate_moves()
 

mrp_production_hierarchy/models/procurement_order.py

@@ -10,12 +10,18 @@ class ProcurementOrder(models.Model):
 
     @api.multi
     def make_mo(self):
-        """Overload to set the parent production order ID to its childs."""
+        """Overload to set the root and parent production order ID to the
+        children production orders.
+        """
         res = super(ProcurementOrder, self).make_mo()
-        production_ids = res.values()
+        production_ids = [id_ for id_ in res.values() if id_]
         productions = self.env['mrp.production'].browse(production_ids)
         for production in productions:
             if self.env.context.get('parent_mrp_production_id'):
                 parent_id = self.env.context['parent_mrp_production_id']
-                production.parent_id = parent_id
+                root_id = self.env.context['root_mrp_production_id']
+                production.write({
+                    'parent_id': parent_id,
+                    'root_id': root_id,
+                })
         return res

mrp_production_hierarchy/tests/test_mrp_production_hierarchy.py

@@ -26,5 +26,9 @@ class TestMrpProductionHierarchy(TestMrpCommon):
         self.assertEqual(len(man_order.child_ids), 2)
         for child in man_order.child_ids:
             self.assertIn(child.product_id, [self.product_5, self.product_4])
+            self.assertEqual(child.root_id, man_order)
+            self.assertEqual(child.parent_id, man_order)
             for child2 in child.child_ids:
                 self.assertIn(child2.product_id, [self.product_4])
+                self.assertEqual(child2.root_id, man_order)
+                self.assertEqual(child2.parent_id, child)

mrp_production_hierarchy/views/mrp_production.xml

@@ -13,6 +13,10 @@
                         icon="fa-sitemap"
                         attrs="{'invisible': [('child_ids', '=', [])]}"/>
                 </div>
+                <field name="origin" position="after">
+                    <field name="root_id"/>
+                    <field name="parent_id"/>
+                </field>
             </field>
         </record>