[17.0][ADD] mrp_bom_lock_used: prevent used BOMs to be changed

mrp_bom_lock_used/README.rst

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+=================
+MRP BOM Lock Used
+=================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:b9c74cd70264e7189ed9406086ab59225bd28bb65f41f7abdc42031f3e2905da
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-LGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
+    :alt: License: LGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fmanufacture-lightgray.png?logo=github
+    :target: https://github.com/OCA/manufacture/tree/17.0/mrp_bom_lock_used
+    :alt: OCA/manufacture
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/manufacture-17-0/manufacture-17-0-mrp_bom_lock_used
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/manufacture&target_branch=17.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+Prevents BOM modifications when active production orders exist and
+blocks MO confirmation when BOM is outdated.
+
+Useful when using along with the mrp_bom_version module, to further
+enhance BOM version control.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+When you try to modify a BOM that has active production orders, you will
+receive an error message listing the affected production orders. You
+must complete or cancel these production orders before modifying the
+BOM.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/manufacture/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/manufacture/issues/new?body=module:%20mrp_bom_lock_used%0Aversion:%2017.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+-------
+
+* Open Source Integrators
+
+Maintainers
+-----------
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+This module is part of the `OCA/manufacture <https://github.com/OCA/manufacture/tree/17.0/mrp_bom_lock_used>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

mrp_bom_lock_used/__init__.py

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+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
+
+from . import models

mrp_bom_lock_used/__manifest__.py

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+# Copyright 2026 Open Source Integrators
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
+
+{
+    "name": "MRP BOM Lock Used",
+    "version": "17.0.1.0.0",
+    "author": "Open Source Integrators, Odoo Community Association (OCA)",
+    "summary": "Prevents BOM modifications when active production orders"
+    " exist and blocks MO confirmation when BOM is outdated",
+    "website": "https://github.com/OCA/manufacture",
+    "category": "Manufacturing",
+    "depends": ["mrp"],
+    "license": "LGPL-3",
+    "installable": True,
+}

mrp_bom_lock_used/i18n/fr.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* mrp_bom_lock_used
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 17.0+e\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2026-02-20 18:40+0000\n"
+"PO-Revision-Date: 2026-02-20 18:40+0000\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_bom
+msgid "Bill of Material"
+msgstr "Nomenclature"
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_bom_line
+msgid "Bill of Material Line"
+msgstr "Ligne de nomenclature"
+
+#. module: mrp_bom_lock_used
+#. odoo-python
+#: code:addons/mrp_bom_lock_used/models/mrp_bom.py:0
+#, python-format
+msgid ""
+"Cannot modify BOM lines. There are active production orders: %s. Please "
+"complete or cancel these production orders before modifying the BOM."
+msgstr "Impossible de modifier les lignes de nomenclature. Il y a des ordres de fabrication actifs : %s. Veuillez terminer ou annuler ces ordres de fabrication avant de modifier la nomenclature."
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_production
+msgid "Production Order"
+msgstr "Ordre de production"

mrp_bom_lock_used/i18n/mrp_bom_lock_used.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* mrp_bom_lock_used
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 17.0+e\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2026-02-20 18:39+0000\n"
+"PO-Revision-Date: 2026-02-20 18:39+0000\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_bom
+msgid "Bill of Material"
+msgstr ""
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_bom_line
+msgid "Bill of Material Line"
+msgstr ""
+
+#. module: mrp_bom_lock_used
+#. odoo-python
+#: code:addons/mrp_bom_lock_used/models/mrp_bom.py:0
+#, python-format
+msgid ""
+"Cannot modify BOM lines. There are active production orders: %s. Please "
+"complete or cancel these production orders before modifying the BOM."
+msgstr ""
+
+#. module: mrp_bom_lock_used
+#: model:ir.model,name:mrp_bom_lock_used.model_mrp_production
+msgid "Production Order"
+msgstr ""

mrp_bom_lock_used/models/__init__.py

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+from . import mrp_bom
+from . import mrp_production

mrp_bom_lock_used/models/mrp_bom.py

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+# Copyright 2025 Open Source Integrators
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
+
+from odoo import _, models
+from odoo.exceptions import UserError
+
+
+class MrpBom(models.Model):
+    _inherit = "mrp.bom"
+
+    def _check_active_production_orders(self):
+        """Check for active production orders and raise error if found."""
+        production_orders = self.env["mrp.production"].search(
+            [("bom_id", "in", self.ids), ("state", "not in", ["done", "cancel"])],
+        )
+
+        if production_orders:
+            production_names = ", ".join(production_orders.mapped("name"))
+            raise UserError(
+                _(
+                    "Cannot modify BOM lines. "
+                    "There are active production orders: %s. "
+                    "Please complete or cancel these production orders "
+                    "before modifying the BOM."
+                )
+                % production_names
+            )
+
+    def write(self, values):
+        # Check if BOM lines are being modified
+        if "bom_line_ids" in values:
+            self._check_active_production_orders()
+        return super().write(values)
+
+
+class MrpBomLine(models.Model):
+    _inherit = "mrp.bom.line"
+
+    def write(self, values):
+        # Check if critical fields are being modified
+        critical_fields = ["product_id", "product_qty", "product_uom_id"]
+        if any(field in values for field in critical_fields):
+            for bom_line in self:
+                bom = bom_line.bom_id
+                # Check for existing production orders
+                production_orders = self.env["mrp.production"].search(
+                    [("bom_id", "=", bom.id), ("state", "not in", ["cancel"])], limit=5
+                )
+                if production_orders:
+                    production_names = ", ".join(production_orders.mapped("name"))
+                    raise UserError(
+                        "Cannot modify BOM line '%s' for BOM '%s'. "
+                        "There are active or done production orders: %s. "
+                        "Please complete or cancel these production orders"
+                        " before modifying the BOM line."
+                    ) % (bom_line.display_name, bom.display_name, production_names)
+
+        return super().write(values)
+
+    def unlink(self):
+        for bom_line in self:
+            bom = bom_line.bom_id
+            # Check for existing production orders before deletion
+            production_orders = self.env["mrp.production"].search(
+                [("bom_id", "=", bom.id), ("state", "not in", ["done", "cancel"])]
+            )
+
+            if production_orders:
+                production_names = ", ".join(production_orders.mapped("name"))
+                raise UserError(
+                    "Cannot delete BOM line '%s' from BOM '%s'. "
+                    "There are active production orders: %s. "
+                    "Please complete or cancel these production orders "
+                    "before removing the BOM line."
+                ) % (bom_line.display_name, bom.display_name, production_names)
+
+        return super().unlink()

mrp_bom_lock_used/models/mrp_production.py

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+# Copyright 2026 Open Source Integrators
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
+
+from odoo import models
+from odoo.exceptions import UserError
+
+
+class MrpProduction(models.Model):
+    _inherit = "mrp.production"
+
+    def action_confirm(self):
+        for production in self:
+            # Check if BOM is outdated before allowing confirmation
+            if production.is_outdated_bom:
+                raise (
+                    UserError(
+                        "Cannot confirm production order '%s'. "
+                        "The BOM is outdated. Please update the BOM "
+                        "or create a new production order."
+                    )
+                    % production.name
+                )
+
+        return super().action_confirm()

mrp_bom_lock_used/pyproject.toml

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+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"

mrp_bom_lock_used/readme/DESCRIPTION.md

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+Prevents BOM modifications when active production orders exist and
+blocks MO confirmation when BOM is outdated.
+
+Useful when using along with the mrp_bom_version module, to further
+enhance BOM version control.

mrp_bom_lock_used/readme/USAGE.md

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+When you try to modify a BOM that has active production orders, you will
+receive an error message listing the affected production orders. You
+must complete or cancel these production orders before modifying the
+BOM.