Criptomart/red-supermercados-coop#6 add stock_valuation_layer_category_groupby

stock_valuation_layer_category_groupby/README.md

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+# Stock Valuation Layer Category Groupby
+
+## Description
+
+This module allows grouping by product category in the stock valuation layer reports.
+
+### Problem
+
+By default, the `categ_id` field in `stock.valuation.layer` is a related field without storage (`store=False`). This means it cannot be used for grouping in reports and pivot views, even though it can be used for filtering and searching.
+
+### Solution
+
+This module makes the `categ_id` field stored (`store=True`) and indexed, which enables:
+- Grouping by product category in list views
+- Grouping by product category in pivot views
+- Grouping by product category in graph views
+- Better performance when filtering by category
+
+## Installation
+
+1. Install the module from the Apps menu
+2. The field will be automatically populated for existing records
+
+## Usage
+
+After installation:
+1. Go to Inventory > Reporting > Inventory Valuation
+2. Switch to Pivot or Graph view
+3. Click on "Measures" or group options
+4. You will now see "Product Category" available for grouping
+
+## Technical Details
+
+The module extends `stock.valuation.layer` model and modifies the `categ_id` field to:
+- `store=True`: Store the value in the database
+- `index=True`: Add database index for better performance
+
+The field remains a related field, so it will automatically update when the product category changes.
+
+## Bug Tracker
+
+Bugs are tracked on [GitHub Issues](https://github.com/OCA/stock-logistics-warehouse/issues).
+
+## Credits
+
+### Contributors
+
+* Criptomart
+
+### Maintainers
+
+This module is maintained by the OCA.
+
+## Compatibility
+
+- Odoo 16.0
+- stock_account

stock_valuation_layer_category_groupby/__init__.py

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+from . import models

stock_valuation_layer_category_groupby/__manifest__.py

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+# Copyright 2025 Criptomart
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+{
+    "name": "Stock Valuation Layer Category Groupby",
+    "version": "16.0.1.0.0",
+    "summary": "Allow grouping by product category in stock valuation layer reports",
+    "license": "AGPL-3",
+    "author": "Criptomart",
+    "website": "https://github.com/OCA/stock-logistics-warehouse",
+    "depends": ["stock_account"],
+    "data": ["views/stock_valuation_layer_views.xml"],
+    "installable": True,
+}

stock_valuation_layer_category_groupby/i18n/es.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* stock_valuation_layer_category_groupby
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-12-04 17:24+0000\n"
+"PO-Revision-Date: 2025-12-04 17:24+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_valuation_layer_category_groupby
+#: model:ir.model.fields,field_description:stock_valuation_layer_category_groupby.field_stock_valuation_layer__categ_id
+#: model_terms:ir.ui.view,arch_db:stock_valuation_layer_category_groupby.view_inventory_valuation_search_category
+msgid "Product Category"
+msgstr "Categoría de producto"
+
+#. module: stock_valuation_layer_category_groupby
+#: model:ir.model.fields,field_description:stock_valuation_layer_category_groupby.field_stock_valuation_layer__smart_search
+msgid "Smart Search"
+msgstr "Búsqueda inteligente"
+
+#. module: stock_valuation_layer_category_groupby
+#: model:ir.model,name:stock_valuation_layer_category_groupby.model_stock_valuation_layer
+msgid "Stock Valuation Layer"
+msgstr "Nivel de Valoración de Existencias"

stock_valuation_layer_category_groupby/i18n/stock_valuation_layer_category_groupby.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* stock_valuation_layer_category_groupby
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2025-12-04 17:24+0000\n"
+"PO-Revision-Date: 2025-12-04 17:24+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_valuation_layer_category_groupby
+#: model:ir.model.fields,field_description:stock_valuation_layer_category_groupby.field_stock_valuation_layer__categ_id
+#: model_terms:ir.ui.view,arch_db:stock_valuation_layer_category_groupby.view_inventory_valuation_search_category
+msgid "Product Category"
+msgstr ""
+
+#. module: stock_valuation_layer_category_groupby
+#: model:ir.model.fields,field_description:stock_valuation_layer_category_groupby.field_stock_valuation_layer__smart_search
+msgid "Smart Search"
+msgstr ""
+
+#. module: stock_valuation_layer_category_groupby
+#: model:ir.model,name:stock_valuation_layer_category_groupby.model_stock_valuation_layer
+msgid "Stock Valuation Layer"
+msgstr ""

stock_valuation_layer_category_groupby/models/__init__.py

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+from . import stock_valuation_layer

stock_valuation_layer_category_groupby/models/stock_valuation_layer.py

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+# Copyright 2025 Criptomart
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class StockValuationLayer(models.Model):
+    _inherit = "stock.valuation.layer"
+
+    # Make categ_id stored to allow grouping in reports
+    categ_id = fields.Many2one(store=True, index=True)

stock_valuation_layer_category_groupby/views/stock_valuation_layer_views.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+
+    <!-- Add Product Category to group by options -->
+    <record id="view_inventory_valuation_search_category" model="ir.ui.view">
+        <field name="name">stock.valuation.layer.search.category</field>
+        <field name="model">stock.valuation.layer</field>
+        <field name="inherit_id" ref="stock_account.view_inventory_valuation_search" />
+        <field name="arch" type="xml">
+            <filter name="group_by_product_id" position="after">
+                <filter
+                    string="Product Category"
+                    name="group_by_categ_id"
+                    context="{'group_by': 'categ_id'}"
+                />
+            </filter>
+        </field>
+    </record>
+
+</odoo>