[IMP] website_sale_aplicoop: add sequence field to product.category for web ordering

- Add sequence field (default 10) to product.category with _order = "sequence, name"
- Inherit product.category tree view to add drag-handle widget
- Sort category hierarchy and available categories by sequence in controller
- Migration 18.0.1.9.0: add sequence column to product_category table
- Bump version to 18.0.1.9.0

website_sale_aplicoop/__manifest__.py

@@ -3,7 +3,7 @@
 
 {  # noqa: B018
     "name": "Website Sale - Aplicoop",
-    "version": "18.0.1.8.0",
+    "version": "18.0.1.9.0",
     "category": "Website/Sale",
     "summary": "Modern replacement of legacy Aplicoop - Collaborative consumption group orders",
     "author": "Odoo Community Association (OCA), Criptomart",
@@ -34,6 +34,7 @@
         "security/record_rules.xml",
         # Vistas
         "views/group_order_views.xml",
+        "views/product_category_views.xml",
         "views/res_partner_views.xml",
         "views/res_config_settings_views.xml",
         "views/website_templates.xml",

website_sale_aplicoop/migrations/18.0.1.9.0/pre-migrate.py

@@ -0,0 +1,13 @@
+"""Add sequence field to product.category.
+
+Ensures the sequence column exists with a default of 10 for all existing rows.
+The ORM will also handle this on upgrade, but we add it explicitly so the
+column is present before any post-install logic runs.
+"""
+
+
+def migrate(cr, version):
+    cr.execute("""
+        ALTER TABLE product_category
+        ADD COLUMN IF NOT EXISTS sequence INTEGER NOT NULL DEFAULT 10;
+    """)

website_sale_aplicoop/models/__init__.py

@@ -1,7 +1,9 @@
-from . import group_order
-from . import product_extension
-from . import res_config_settings
-from . import res_partner_extension
-from . import sale_order_extension
-from . import stock_picking_extension
-from . import js_translations
+from . import group_order  # noqa: F401
+from . import group_order_slot  # noqa: F401
+from . import product_category_extension  # noqa: F401
+from . import product_extension  # noqa: F401
+from . import res_config_settings  # noqa: F401
+from . import res_partner_extension  # noqa: F401
+from . import sale_order_extension  # noqa: F401
+from . import stock_picking_extension  # noqa: F401
+from . import js_translations  # noqa: F401

website_sale_aplicoop/models/product_category_extension.py

@@ -0,0 +1,12 @@
+# Copyright 2026 Criptomart
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields
+from odoo import models
+
+
+class ProductCategory(models.Model):
+    _inherit = "product.category"
+    _order = "sequence, name"
+
+    sequence = fields.Integer(default=10)

website_sale_aplicoop/views/product_category_views.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="product_category_view_tree_sequence" model="ir.ui.view">
+        <field name="name">product.category.list.sequence</field>
+        <field name="model">product.category</field>
+        <field name="inherit_id" ref="product.product_category_list_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//list" position="attributes">
+                <attribute name="default_order">sequence, name</attribute>
+            </xpath>
+            <xpath expr="//list/field[1]" position="before">
+                <field name="sequence" widget="handle"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>