[6271][ADD] stock_svl_vendor: store the vendor on stock valuation layers

stock_svl_vendor/README.rst

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+============================
+Stock Valuation Layer Vendor
+============================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:7bb64c277e472c06137f6cf7274c16963ef0a6e00a2a837a9f8cf2dcd5a06433
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |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-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-qrtl%2Fhls--custom-lightgray.png?logo=github
+    :target: https://github.com/qrtl/hls-custom/tree/18.0/stock_svl_vendor
+    :alt: qrtl/hls-custom
+
+|badge1| |badge2| |badge3|
+
+This module adds a vendor field to stock valuation layers, populated
+from the purchase order linked to the related stock move.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/qrtl/hls-custom/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/qrtl/hls-custom/issues/new?body=module:%20stock_svl_vendor%0Aversion:%2018.0%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
+-------
+
+* Quartile
+
+Maintainers
+-----------
+
+.. |maintainer-nobuQuartile| image:: https://github.com/nobuQuartile.png?size=40px
+    :target: https://github.com/nobuQuartile
+    :alt: nobuQuartile
+
+Current maintainer:
+
+|maintainer-nobuQuartile| 
+
+This module is part of the `qrtl/hls-custom <https://github.com/qrtl/hls-custom/tree/18.0/stock_svl_vendor>`_ project on GitHub.
+
+You are welcome to contribute.

stock_svl_vendor/__init__.py

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+from . import models
+from .hooks import pre_init_hook

stock_svl_vendor/__manifest__.py

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+# Copyright 2026 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+{
+    "name": "Stock Valuation Layer Vendor",
+    "summary": "Store the vendor on stock valuation layers created from purchases.",
+    "version": "18.0.1.0.0",
+    "author": "Quartile",
+    "website": "https://www.quartile.co",
+    "category": "Inventory",
+    "license": "AGPL-3",
+    "depends": ["purchase_stock"],
+    "data": ["views/stock_valuation_layer_views.xml"],
+    "pre_init_hook": "pre_init_hook",
+    "maintainers": ["nobuQuartile"],
+    "installable": True,
+}

stock_svl_vendor/hooks.py

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+# Copyright 2026 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo.tools.sql import column_exists, create_column
+
+
+def pre_init_hook(env):
+    if column_exists(env.cr, "stock_valuation_layer", "vendor_id"):
+        return
+    create_column(env.cr, "stock_valuation_layer", "vendor_id", "int4")
+    env.cr.execute(
+        """
+        UPDATE stock_valuation_layer svl
+        SET vendor_id = po.partner_id
+        FROM stock_move sm
+        JOIN purchase_order_line pol ON pol.id = sm.purchase_line_id
+        JOIN purchase_order po ON po.id = pol.order_id
+        WHERE svl.stock_move_id = sm.id
+        """
+    )

stock_svl_vendor/i18n/ja.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* stock_svl_vendor
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0+e\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2026-07-13 04:11+0000\n"
+"PO-Revision-Date: 2026-07-13 04:11+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: stock_svl_vendor
+#: model:ir.model,name:stock_svl_vendor.model_stock_valuation_layer
+msgid "Stock Valuation Layer"
+msgstr "在庫評価レイヤ"
+
+#. module: stock_svl_vendor
+#: model:ir.model.fields,field_description:stock_svl_vendor.field_stock_valuation_layer__vendor_id
+msgid "Vendor"
+msgstr "仕入先"
+
+#. module: stock_svl_vendor
+#: model:ir.model.fields,help:stock_svl_vendor.field_stock_valuation_layer__vendor_id
+msgid "Vendor of the purchase order linked to the stock move, if any."
+msgstr "在庫移動に紐づく購買オーダの仕入先(存在する場合)。"

stock_svl_vendor/models/__init__.py

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+from . import stock_valuation_layer

stock_svl_vendor/models/stock_valuation_layer.py

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+# Copyright 2026 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class StockValuationLayer(models.Model):
+    _inherit = "stock.valuation.layer"
+
+    vendor_id = fields.Many2one(
+        "res.partner",
+        string="Vendor",
+        readonly=True,
+        index=True,
+        help="Vendor of the purchase order linked to the stock move, if any.",
+    )
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        move_ids = {
+            vals["stock_move_id"] for vals in vals_list if vals.get("stock_move_id")
+        }
+        vendor_by_move = {
+            move.id: move.purchase_line_id.order_id.partner_id.id
+            for move in self.env["stock.move"].browse(move_ids)
+        }
+        for vals in vals_list:
+            vendor_id = vendor_by_move.get(vals.get("stock_move_id"))
+            if vendor_id:
+                vals["vendor_id"] = vendor_id
+        return super().create(vals_list)

stock_svl_vendor/pyproject.toml

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

stock_svl_vendor/readme/DESCRIPTION.md

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+This module adds a vendor field to stock valuation layers, populated from the
+purchase order linked to the related stock move.