[14.0][FIX] mrp_subcontracting_purchase_link: link to PO line, not PO

mrp_subcontracting_purchase_link/__manifest__.py

@@ -1,7 +1,7 @@
 # Copyright 2020 Quartile Limited
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
 {
-    "name": "Link Purchase Order to Subcontract Productions",
+    "name": "Link Purchase Order Line to Subcontract Productions",
     "version": "14.0.1.0.1",
     "category": "Manufacturing",
     "license": "LGPL-3",

mrp_subcontracting_purchase_link/models/mrp_production.py

@@ -8,5 +8,13 @@ class MrpProduction(models.Model):
     _inherit = "mrp.production"
 
     purchase_order_id = fields.Many2one(
-        "purchase.order", "Subcontract Purchase Order", readonly=True
+        "purchase.order",
+        "Subcontract Purchase Order",
+        readonly=True,
+        related="purchase_line_id.order_id",
+        store=True,
+    )
+
+    purchase_line_id = fields.Many2one(
+        "purchase.order.line", "Subcontract Purchase Order Line", readonly=True
     )

mrp_subcontracting_purchase_link/models/purchase_order.py

@@ -7,15 +7,16 @@ from odoo import fields, models
 class PurchaseOrder(models.Model):
     _inherit = "purchase.order"
 
+    subcontract_production_count = fields.Integer(
+        compute="_compute_subcontract_production_count"
+    )
+
     subcontract_production_ids = fields.One2many(
         "mrp.production",
         "purchase_order_id",
         "Subcontract Production Orders",
         readonly=True,
     )
-    subcontract_production_count = fields.Integer(
-        compute="_compute_subcontract_production_count"
-    )
 
     def action_view_mrp(self):
         productions = self.subcontract_production_ids

mrp_subcontracting_purchase_link/models/stock_picking.py

@@ -10,5 +10,5 @@ class StockPicking(models.Model):
     def _prepare_subcontract_mo_vals(self, subcontract_move, bom):
         vals = super()._prepare_subcontract_mo_vals(subcontract_move, bom)
         if subcontract_move.purchase_line_id:
-            vals["purchase_order_id"] = subcontract_move.purchase_line_id.order_id.id
+            vals["purchase_line_id"] = subcontract_move.purchase_line_id.id
         return vals

mrp_subcontracting_purchase_link/readme/DESCRIPTION.rst

@@ -1,4 +1,4 @@
 This module does the following:
 
-- Extends _prepare_subcontract_mo_vals() and adds the purchase order reference to the subcontracted manufacturing orders.
+- Extends _prepare_subcontract_mo_vals() and adds the purchase order line reference to the subcontracted manufacturing orders.
 - Adds an action button in the purchase order form view to open related subcontracted manufacturing orders.

mrp_subcontracting_purchase_link/tests/test_mrp_subcontracting_purchase_link.py

@@ -44,8 +44,8 @@ class TestMrpSubcontractingPurchaseLink(TestMrpSubcontractingCommon):
                 self.assertEqual(
                     picking._prepare_subcontract_mo_vals(
                         move, move._get_subcontract_bom()
-                    )["purchase_order_id"],
-                    purchase_order.id,
+                    )["purchase_line_id"],
+                    purchase_order.order_line.id,
                 )
 
     def test_02_compute_subcontract_production_count(self):
@@ -62,7 +62,8 @@ class TestMrpSubcontractingPurchaseLink(TestMrpSubcontractingCommon):
             action["views"], [(self.env.ref("mrp.mrp_production_form_view").id, "form")]
         )
         self.assertEqual(
-            action["res_id"], purchase_order1.subcontract_production_ids[0].id
+            action["res_id"],
+            purchase_order1.subcontract_production_ids[0].id,
         )
         action = purchase_order2.action_view_mrp()
         self.assertEqual(

mrp_subcontracting_purchase_link/views/mrp_production_views.xml

@@ -7,6 +7,7 @@
         <field name="arch" type="xml">
             <xpath expr="//field[@name='company_id']" position="after">
                 <field name="purchase_order_id" groups="purchase.group_purchase_user" />
+                <field name="purchase_line_id" groups="purchase.group_purchase_user" />
             </xpath>
         </field>
     </record>