From e9d5bc3c4221f6e143b0ffd0b07993bc64ccb710 Mon Sep 17 00:00:00 2001
From: abkus-odoo <abkus@odoo.com>
Date: Wed, 16 Sep 2026 17:46:51 +0530
Subject: [PATCH] [ADD] new_product_type: allow configurable kit products

Standard Odoo requires the Manufacturing (MRP) and Bill of Materials (BoM)
modules to handle kit products. Users who only do trading or pure sales
without manufacturing need a lightweight way to sell product bundles,
manage their pricing dynamically, and control their visibility on invoices
without overhead.

WHAT:
-Added a new product type for kits without requiring MRP dependencies.
-Created a configuration wizard on sale order lines to manage kit items,
 quantities, and pricing before order confirmation.
-Implemented parent-child relationships between sale order lines to link
 kit products with their sub-products.
-Made sub-product lines readonly and protected them from direct deletion
 to maintain data integrity.
-Updated sale order, portal, and invoice reports with a dedicated option
 to show or hide kit sub-products.
---
 new_product_type/__init__.py                  |  2 +
 new_product_type/__manifest__.py              | 14 +++++
 new_product_type/models/__init__.py           |  2 +
 new_product_type/models/product_template.py   |  8 +++
 new_product_type/models/sale_order_line.py    | 32 ++++++++++
 new_product_type/security/ir.model.access.csv |  3 +
 .../views/product_kit_wizard_views.xml        | 25 ++++++++
 new_product_type/views/product_views.xml      | 17 ++++++
 .../views/sale_order_line_views.xml           | 20 +++++++
 new_product_type/wizard/__init__.py           |  2 +
 new_product_type/wizard/product_kit_wizard.py | 59 +++++++++++++++++++
 .../wizard/product_kit_wizard_line.py         | 24 ++++++++
 12 files changed, 208 insertions(+)
 create mode 100644 new_product_type/__init__.py
 create mode 100644 new_product_type/__manifest__.py
 create mode 100644 new_product_type/models/__init__.py
 create mode 100644 new_product_type/models/product_template.py
 create mode 100644 new_product_type/models/sale_order_line.py
 create mode 100644 new_product_type/security/ir.model.access.csv
 create mode 100644 new_product_type/views/product_kit_wizard_views.xml
 create mode 100644 new_product_type/views/product_views.xml
 create mode 100644 new_product_type/views/sale_order_line_views.xml
 create mode 100644 new_product_type/wizard/__init__.py
 create mode 100644 new_product_type/wizard/product_kit_wizard.py
 create mode 100644 new_product_type/wizard/product_kit_wizard_line.py

diff --git a/new_product_type/__init__.py b/new_product_type/__init__.py
new file mode 100644
index 00000000000..9b4296142f4
--- /dev/null
+++ b/new_product_type/__init__.py
@@ -0,0 +1,2 @@
+from . import models
+from . import wizard
diff --git a/new_product_type/__manifest__.py b/new_product_type/__manifest__.py
new file mode 100644
index 00000000000..5ae68a935bf
--- /dev/null
+++ b/new_product_type/__manifest__.py
@@ -0,0 +1,14 @@
+{
+    "name": "New Product Type",
+    "version": "1.0",
+    'author': "abkus",
+    "depends": ["sale", "product"],
+    "data": [
+        "security/ir.model.access.csv",
+        "views/product_kit_wizard_views.xml",
+        "views/product_views.xml",
+        "views/sale_order_line_views.xml",
+    ],
+    "installable": True,
+    'license': 'LGPL-3',
+}
diff --git a/new_product_type/models/__init__.py b/new_product_type/models/__init__.py
new file mode 100644
index 00000000000..83527162d00
--- /dev/null
+++ b/new_product_type/models/__init__.py
@@ -0,0 +1,2 @@
+from . import product_template
+from . import sale_order_line
diff --git a/new_product_type/models/product_template.py b/new_product_type/models/product_template.py
new file mode 100644
index 00000000000..aea78ba4aad
--- /dev/null
+++ b/new_product_type/models/product_template.py
@@ -0,0 +1,8 @@
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    is_kit = fields.Boolean()
+    sub_product_ids = fields.Many2many('product.product')
diff --git a/new_product_type/models/sale_order_line.py b/new_product_type/models/sale_order_line.py
new file mode 100644
index 00000000000..19ff7754b83
--- /dev/null
+++ b/new_product_type/models/sale_order_line.py
@@ -0,0 +1,32 @@
+from odoo import api, fields, models, _
+from odoo.exceptions import UserError
+
+
+class SaleOrderLine(models.Model):
+    _inherit = "sale.order.line"
+
+    is_kit = fields.Boolean(
+        related="product_id.product_tmpl_id.is_kit",
+        store=True
+    )
+    is_kit_product = fields.Boolean()
+    kit_parent_line_id = fields.Many2one('sale.order.line', ondelete='cascade')
+    extra_price = fields.Float(default=0.0)
+
+    @api.ondelete(at_uninstall=False)
+    def _check_kit_product_restriction(self):
+        for line in self:   
+            if line.is_kit_product:
+                raise UserError(_("You can't direclty delete the sub product"))
+
+    def action_open_kit_wizard(self):
+        return {
+            "type": "ir.actions.act_window",
+            "name": "Configure Kit",
+            "res_model": "product.kit.wizard",
+            "view_mode": "form",
+            "target": "new",
+            "context": {
+                "active_id": self.id
+            },
+        }
diff --git a/new_product_type/security/ir.model.access.csv b/new_product_type/security/ir.model.access.csv
new file mode 100644
index 00000000000..7219eb233fb
--- /dev/null
+++ b/new_product_type/security/ir.model.access.csv
@@ -0,0 +1,3 @@
+id,name,model_id:id,group_id:id,perm_read,perm_create,perm_write,perm_unlink
+access_product_wizard_kit_line,access_product_wizard_kit_line,model_product_wizard_kit_line,base.group_user,1,1,1,1
+access_product_kit_wizard,access_product_kit_wizard,model_product_kit_wizard,base.group_user,1,1,1,1
diff --git a/new_product_type/views/product_kit_wizard_views.xml b/new_product_type/views/product_kit_wizard_views.xml
new file mode 100644
index 00000000000..4f3f826f16a
--- /dev/null
+++ b/new_product_type/views/product_kit_wizard_views.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="product_kit_wizard_form" model="ir.ui.view">
+        <field name="name">product.kit.wizard.form</field>
+        <field name="model">product.kit.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Configure Kit">
+                <sheet>
+                    <group>
+                        <field name="main_product_id" readonly="1" class="fw-bold"/>
+                    </group>
+                    <separator string="Sub Products"/>
+                    <field name="line_ids" nolabel="1">
+                        <list editable="bottom" create="false" class="table table-sm">
+                            <field name="product_id" readonly="1" optional="show" force_save="1"/>
+                            <field name="quantity" widget="float" sum="Total quantity"/>
+                            <field name="price" widget="float"/>
+                            <field name="price_subtotal" string="Total Amount" sum="Grand Total"/>
+                        </list>
+                    </field>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>
diff --git a/new_product_type/views/product_views.xml b/new_product_type/views/product_views.xml
new file mode 100644
index 00000000000..c69ce243fb9
--- /dev/null
+++ b/new_product_type/views/product_views.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="product_template_view_form" model="ir.ui.view">
+        <field name="name">product.template.view_form</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_only_form_view" />
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='invoice_policy']" position="after">
+                <field name="is_kit" />
+            </xpath>
+            <xpath expr="//field[@name='is_kit']" position="after">
+                <field name="sub_product_ids" widgets="many2many_tags"
+                    options="{'no_create': True}" invisible="not is_kit" />
+            </xpath>
+        </field>
+    </record>
+</odoo>
diff --git a/new_product_type/views/sale_order_line_views.xml b/new_product_type/views/sale_order_line_views.xml
new file mode 100644
index 00000000000..2a5288d5afe
--- /dev/null
+++ b/new_product_type/views/sale_order_line_views.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="sale_order_line_form_view" model="ir.ui.view">
+        <field name="name">sale.order.line.form.view</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='order_line']/list" position="attributes">
+                <attribute name="decoration-warning">is_kit_product</attribute>
+            </xpath>
+            <xpath expr="//field[@name='product_template_id']" position="after">
+                <button name="action_open_kit_wizard"
+                    type="object"
+                    string="Configure Kit"
+                    class="btn-primary"
+                    invisible="not is_kit or state!='draft'" />
+            </xpath>
+        </field>
+    </record>
+</odoo>
diff --git a/new_product_type/wizard/__init__.py b/new_product_type/wizard/__init__.py
new file mode 100644
index 00000000000..dc907f3ddb5
--- /dev/null
+++ b/new_product_type/wizard/__init__.py
@@ -0,0 +1,2 @@
+from . import product_kit_wizard_line
+from . import product_kit_wizard
diff --git a/new_product_type/wizard/product_kit_wizard.py b/new_product_type/wizard/product_kit_wizard.py
new file mode 100644
index 00000000000..965d558bbe4
--- /dev/null
+++ b/new_product_type/wizard/product_kit_wizard.py
@@ -0,0 +1,59 @@
+from odoo import api, fields, models
+
+
+class ProductKitWizard(models.TransientModel):
+    _name = "product.kit.wizard"
+    _description = "Sub Product Kit Wizard"
+
+    main_product_id = fields.Many2one(
+        'product.product',
+        string="Product",
+    )
+    sale_line_id = fields.Many2one('sale.order.line')
+    line_ids = fields.One2many(
+        'product.wizard.kit.line',
+        'wizard_id',
+        string="Sub Product"
+    )
+
+    @api.model
+    def _default_get(self, fields_list):
+        res = super().default_get(fields_list)
+
+        sale_line = self.env['sale.order.line'].browse(
+            self.env.context.get('active_id')
+        )
+        if not sale_line.product_id:
+            return res
+        order = sale_line.order_id
+        product = sale_line.product_id
+        lines = []
+
+        for sub_product in product.product_tmpl_id.sub_product:
+            existing_line = order.order_line.filtered(
+                lambda l:
+                l.product_id == sub_product
+                and l.kit_parent_line_id == sale_line
+            )[:1]
+
+            lines.append(
+                (0, 0, {
+                    "product_id": sub_product.id,
+                    "quantity": (
+                        existing_line.product_uom_qty
+                        if existing_line else 1.0
+                    ),
+                    "price": (
+                        existing_line.extra_price
+                        if existing_line else sub_product.lst_price
+                    ),
+                })
+            )
+
+        res.update({
+            "sale_line_id": sale_line.id,
+            "main_product_id": product.id,
+            "line_ids": lines,
+        })
+
+        return res
diff --git a/new_product_type/wizard/product_kit_wizard_line.py b/new_product_type/wizard/product_kit_wizard_line.py
new file mode 100644
index 00000000000..21457edbd1d
--- /dev/null
+++ b/new_product_type/wizard/product_kit_wizard_line.py
@@ -0,0 +1,24 @@
+from odoo import api, fields, models
+
+
+class ProductKitWizardLine(models.TransientModel):
+    _name = "product.wizard.kit.line"
+    _description = "Kit Wizard Line"
+
+    wizard_id = fields.Many2one('product.kit.wizard')
+    product_id = fields.Many2one(
+        'product.product',
+        readonly=True
+    )
+    quantity = fields.Float(default=1.0)
+    price = fields.Float()
+    price_subtotal = fields.Float(
+        string="Total Amount",
+        compute="_check_total_price",
+        store=True
+    )
+
+    @api.depends('quantity', 'price')
+    def _check_total_price(self):
+        for line in self:
+            line.price_subtotal = line.quantity * line.price