[FIX] mrp, mrp_subcontracting: clean-up routes at uninstall

When `mrp` or `mrp_subcontracting` are uninstalled, the routes used as
'Picking Before Manufacturing Route' and 'Resupply Subcontractor' are
kept active. When the modules are re-installed, the routes are created
again, and appear duplicated.

The routes should be deleted if they are not used anywhere else.

opw-2222895

closes odoo/odoo#48206

X-original-commit: ce219b8375dc14daf9d380433d254b622a947773
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/mrp/__init__.py

@@ -16,3 +16,16 @@ def _create_warehouse_data(cr, registry):
     env = api.Environment(cr, SUPERUSER_ID, {})
     warehouse_ids = env['stock.warehouse'].search([('manufacture_pull_id', '=', False)])
     warehouse_ids.write({'manufacture_to_resupply': True})
+
+def uninstall_hook(cr, registry):
+    env = api.Environment(cr, SUPERUSER_ID, {})
+    warehouses = env["stock.warehouse"].search([])
+    subcontracting_routes = warehouses.mapped("pbm_route_id")
+    warehouses.write({"pbm_route_id": False})
+    # Fail unlink means that the route is used somewhere (e.g. route_id on stock.rule). In this case
+    # we don't try to do anything.
+    try:
+        subcontracting_routes.unlink()
+    except:
+        pass
+

addons/mrp/__manifest__.py

@@ -47,4 +47,5 @@
     'test': [],
     'application': True,
     'post_init_hook': '_create_warehouse_data',
+    'uninstall_hook': 'uninstall_hook',
 }

addons/mrp_subcontracting/__init__.py

@@ -1,4 +1,19 @@
 # -*- coding: utf-8 -*-
 
+from odoo import SUPERUSER_ID, api
+
 from . import models
 from . import wizard
+
+
+def uninstall_hook(cr, registry):
+    env = api.Environment(cr, SUPERUSER_ID, {})
+    warehouses = env["stock.warehouse"].search([])
+    subcontracting_routes = warehouses.mapped("subcontracting_route_id")
+    warehouses.write({"subcontracting_route_id": False})
+    # Fail unlink means that the route is used somewhere (e.g. route_id on stock.rule). In this case
+    # we don't try to do anything.
+    try:
+        subcontracting_routes.unlink()
+    except:
+        pass

addons/mrp_subcontracting/__manifest__.py

@@ -23,4 +23,5 @@
     'demo': [
         'data/mrp_subcontracting_demo.xml',
     ],
+    'uninstall_hook': 'uninstall_hook',
 }