From 977abadeb83c0bca7123d3bab3616937414b0a06 Mon Sep 17 00:00:00 2001
From: aykhu-odoo <aykhu@odoo.com>
Date: Mon, 18 May 2026 14:52:35 +0530
Subject: [PATCH] [ADD] sale_mrp_modular_type: add modular types to scale BOM
 quantities from sales order
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

In some manufacturing cases, the quantity of components depends on
values decided at the time of sale (like number of sections, length,
area, etc.). Currently, BOMs are fixed, so handling this kind of
requirement means either duplicating BOMs or manually adjusting
quantities, which is not practical and leads to mistakes.

This change introduces *modular types* to handle this more cleanly.

Products can be configured with modular types (like sections, meters…),
and BOM lines can be linked to those types. Instead of being fixed,
those BOM quantities now act like base values.

When such a product is added to a sales order, the user can enter values
for each modular type. These values are then used when creating the
manufacturing order, where component quantities are computed as a function of:
    - the base BOM quantity
    - the modular type multiplier defined on the sales order

The goal is to avoid duplicating BOMs and remove the need for manual
adjustments, while still keeping the flexibility to handle different
configurations per order.

This keeps the flow simple for users and makes sure the manufacturing
data always matches what was defined during the sale.

A dedicated modular type model is introduced and linked to products
(m2m) to define available dimensions, while BOM lines reference a single
modular type (m2o). This separation allows reusable configuration on the
product side while keeping BOM logic simple and explicit.
The computation is applied at MO generation time.
The computation is applied at MO generation time.
---
 sale_mrp_modular_type/__init__.py             |  2 +
 sale_mrp_modular_type/__manifest__.py         | 15 ++++++
 sale_mrp_modular_type/models/__init__.py      |  6 +++
 sale_mrp_modular_type/models/modular_type.py  |  8 +++
 sale_mrp_modular_type/models/mrp_bom.py       | 17 +++++++
 .../models/product_template.py                |  7 +++
 .../models/sale_order_line.py                 | 33 ++++++++++++
 .../models/sale_order_line_modular_value.py   | 12 +++++
 sale_mrp_modular_type/models/stock_move.py    | 37 ++++++++++++++
 .../security/ir.model.access.csv              |  5 ++
 .../views/modular_type_views.xml              | 26 ++++++++++
 sale_mrp_modular_type/views/mrp_bom_views.xml | 15 ++++++
 .../views/product_template_views.xml          | 15 ++++++
 .../views/sale_order_views.xml                | 28 ++++++++++
 sale_mrp_modular_type/wizard/__init__.py      |  1 +
 .../wizard/modular_type_wizard.py             | 51 +++++++++++++++++++
 .../wizard/modular_type_wizard_views.xml      | 23 +++++++++
 17 files changed, 301 insertions(+)
 create mode 100644 sale_mrp_modular_type/__init__.py
 create mode 100644 sale_mrp_modular_type/__manifest__.py
 create mode 100644 sale_mrp_modular_type/models/__init__.py
 create mode 100644 sale_mrp_modular_type/models/modular_type.py
 create mode 100644 sale_mrp_modular_type/models/mrp_bom.py
 create mode 100644 sale_mrp_modular_type/models/product_template.py
 create mode 100644 sale_mrp_modular_type/models/sale_order_line.py
 create mode 100644 sale_mrp_modular_type/models/sale_order_line_modular_value.py
 create mode 100644 sale_mrp_modular_type/models/stock_move.py
 create mode 100644 sale_mrp_modular_type/security/ir.model.access.csv
 create mode 100644 sale_mrp_modular_type/views/modular_type_views.xml
 create mode 100644 sale_mrp_modular_type/views/mrp_bom_views.xml
 create mode 100644 sale_mrp_modular_type/views/product_template_views.xml
 create mode 100644 sale_mrp_modular_type/views/sale_order_views.xml
 create mode 100644 sale_mrp_modular_type/wizard/__init__.py
 create mode 100644 sale_mrp_modular_type/wizard/modular_type_wizard.py
 create mode 100644 sale_mrp_modular_type/wizard/modular_type_wizard_views.xml

diff --git a/sale_mrp_modular_type/__init__.py b/sale_mrp_modular_type/__init__.py
new file mode 100644
index 00000000000..9b4296142f4
--- /dev/null
+++ b/sale_mrp_modular_type/__init__.py
@@ -0,0 +1,2 @@
+from . import models
+from . import wizard
diff --git a/sale_mrp_modular_type/__manifest__.py b/sale_mrp_modular_type/__manifest__.py
new file mode 100644
index 00000000000..d25d9a2c63f
--- /dev/null
+++ b/sale_mrp_modular_type/__manifest__.py
@@ -0,0 +1,15 @@
+{
+    'name': 'Modular Type',
+    'description': """This module adds modular type to Manufacturing orders""",
+    'author': 'aykhu',
+    'license': 'LGPL-3',
+    'depends': ['sale_management', 'sale_mrp'],
+    'data': [
+        'security/ir.model.access.csv',
+        'wizard/modular_type_wizard_views.xml',
+        'views/modular_type_views.xml',
+        'views/product_template_views.xml',
+        'views/mrp_bom_views.xml',
+        'views/sale_order_views.xml',
+    ],
+}
diff --git a/sale_mrp_modular_type/models/__init__.py b/sale_mrp_modular_type/models/__init__.py
new file mode 100644
index 00000000000..75e58d3b4b8
--- /dev/null
+++ b/sale_mrp_modular_type/models/__init__.py
@@ -0,0 +1,6 @@
+from . import modular_type
+from . import product_template
+from . import mrp_bom
+from . import stock_move
+from . import sale_order_line
+from . import sale_order_line_modular_value
diff --git a/sale_mrp_modular_type/models/modular_type.py b/sale_mrp_modular_type/models/modular_type.py
new file mode 100644
index 00000000000..942076017c5
--- /dev/null
+++ b/sale_mrp_modular_type/models/modular_type.py
@@ -0,0 +1,8 @@
+from odoo import fields, models
+
+
+class ModularType(models.Model):
+    _name = 'modular.type'
+    _description = 'Modular Types'
+
+    name = fields.Char()
diff --git a/sale_mrp_modular_type/models/mrp_bom.py b/sale_mrp_modular_type/models/mrp_bom.py
new file mode 100644
index 00000000000..24cd2c83256
--- /dev/null
+++ b/sale_mrp_modular_type/models/mrp_bom.py
@@ -0,0 +1,17 @@
+from odoo import api, fields, models
+
+
+class MrpBomLine(models.Model):
+    _inherit = 'mrp.bom.line'
+
+    modular_type_id = fields.Many2one(
+        'modular.type', domain="[('id', 'in', available_modular_type_ids)]"
+    )
+    available_modular_type_ids = fields.Many2many(
+        'modular.type', compute='_compute_available_modular_type_ids'
+    )
+
+    @api.depends('product_id')
+    def _compute_available_modular_type_ids(self):
+        for line in self:
+            line.available_modular_type_ids = line.parent_product_tmpl_id.modular_type_ids
diff --git a/sale_mrp_modular_type/models/product_template.py b/sale_mrp_modular_type/models/product_template.py
new file mode 100644
index 00000000000..761f25ec14c
--- /dev/null
+++ b/sale_mrp_modular_type/models/product_template.py
@@ -0,0 +1,7 @@
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    modular_type_ids = fields.Many2many('modular.type')
diff --git a/sale_mrp_modular_type/models/sale_order_line.py b/sale_mrp_modular_type/models/sale_order_line.py
new file mode 100644
index 00000000000..58ba57cdc26
--- /dev/null
+++ b/sale_mrp_modular_type/models/sale_order_line.py
@@ -0,0 +1,33 @@
+from odoo import api, fields, models
+
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    has_modular_type = fields.Boolean(
+        compute='_compute_has_modular_type', store=True
+    )
+    modular_value_ids = fields.One2many(
+        'sale.order.line.modular.value', 'order_line_id'
+    )
+
+    @api.depends('product_template_id', 'product_template_id.modular_type_ids')
+    def _compute_has_modular_type(self):
+        for line in self:
+            line.has_modular_type = bool(
+                line.product_template_id.modular_type_ids
+            )
+
+    def _set_default_modular_values(self):
+        vals_list = []
+        for line in self:
+            existing_types = line.modular_value_ids.mapped('modular_type_id')
+            missing_types = line.product_template_id.modular_type_ids - existing_types
+            for modular_type in missing_types:
+                vals_list.append({
+                    'order_line_id': line.id,
+                    'modular_type_id': modular_type.id,
+                    'value': 0.0,
+                })
+        if vals_list:
+            self.env['sale.order.line.modular.value'].create(vals_list)
diff --git a/sale_mrp_modular_type/models/sale_order_line_modular_value.py b/sale_mrp_modular_type/models/sale_order_line_modular_value.py
new file mode 100644
index 00000000000..9233253a2d2
--- /dev/null
+++ b/sale_mrp_modular_type/models/sale_order_line_modular_value.py
@@ -0,0 +1,12 @@
+from odoo import fields, models
+
+
+class SaleOrderLineModularValue(models.Model):
+    _name = 'sale.order.line.modular.value'
+    _description = 'Sale Order Line Modular Value'
+
+    order_line_id = fields.Many2one(
+        'sale.order.line', required=True, ondelete='cascade'
+    )
+    modular_type_id = fields.Many2one('modular.type', required=True)
+    value = fields.Float(help="Quantity multiplier")
diff --git a/sale_mrp_modular_type/models/stock_move.py b/sale_mrp_modular_type/models/stock_move.py
new file mode 100644
index 00000000000..2b11d555e39
--- /dev/null
+++ b/sale_mrp_modular_type/models/stock_move.py
@@ -0,0 +1,37 @@
+from odoo import api, fields, models
+
+
+class StockMove(models.Model):
+    _inherit = 'stock.move'
+
+    modular_type_id = fields.Many2one(
+        'modular.type', compute="_compute_modular_type", store=True
+    )
+    sale_order_line_modular_value_id = fields.Many2one('sale.order.line.modular.value')
+    base_bom_qty = fields.Float()
+
+    @api.depends('production_id.bom_id.bom_line_ids')
+    def _compute_modular_type(self):
+        for move in self:
+            mo = move.raw_material_production_id
+            move.modular_type_id = mo.bom_id.bom_line_ids.filtered(
+                lambda line: line.product_id == move.product_id).modular_type_id
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        moves = super().create(vals_list)
+        for move in moves:
+            mo = move.raw_material_production_id
+            so_line = mo.sale_line_id
+            if so_line:
+                so_line._set_default_modular_values()
+            bom_line = mo.bom_id.bom_line_ids.filtered(
+                lambda line: line.product_id == move.product_id
+            )[:1]
+            move.base_bom_qty = bom_line.product_qty * mo.product_qty
+            modular_value = so_line.modular_value_ids.filtered(
+                lambda mv: mv.modular_type_id == bom_line.modular_type_id
+            )
+            if bom_line.modular_type_id and modular_value:
+                move.product_uom_qty = move.base_bom_qty * modular_value.value
+        return moves
diff --git a/sale_mrp_modular_type/security/ir.model.access.csv b/sale_mrp_modular_type/security/ir.model.access.csv
new file mode 100644
index 00000000000..ae1199ec1b3
--- /dev/null
+++ b/sale_mrp_modular_type/security/ir.model.access.csv
@@ -0,0 +1,5 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_modular_types,access_modular_types,model_modular_type,base.group_user,1,1,1,1
+access_modular_type_wizard,access_modular_type_wizard,model_modular_type_wizard,base.group_user,1,1,1,1
+access_modular_type_wizard_line,access_modular_type_wizard_line,model_modular_type_wizard_line,base.group_user,1,1,1,1
+access_sale_order_line_modular_value,access_sale_order_line_modular_value,model_sale_order_line_modular_value,base.group_user,1,1,1,1
diff --git a/sale_mrp_modular_type/views/modular_type_views.xml b/sale_mrp_modular_type/views/modular_type_views.xml
new file mode 100644
index 00000000000..839cf439527
--- /dev/null
+++ b/sale_mrp_modular_type/views/modular_type_views.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="modular_type_view_form" model="ir.ui.view">
+        <field name="name">modular.type.view.form</field>
+        <field name="model">modular.type</field>
+        <field name="arch" type="xml">
+            <form>
+                <field name="name"/>
+            </form>
+        </field>
+    </record>
+
+    <record id="mrp_modular_type_action" model="ir.actions.act_window">
+        <field name="name">Modular Type</field>
+        <field name="res_model">modular.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <menuitem id="menu_mrp_modular_type"
+        name="Modular Types"
+        parent="mrp.menu_mrp_bom"
+        action="mrp_modular_type_action"
+        sequence="30"/>
+
+</odoo>
diff --git a/sale_mrp_modular_type/views/mrp_bom_views.xml b/sale_mrp_modular_type/views/mrp_bom_views.xml
new file mode 100644
index 00000000000..cff7d45edf1
--- /dev/null
+++ b/sale_mrp_modular_type/views/mrp_bom_views.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="mrp_bom_form_view_inherit_modular_type" model="ir.ui.view">
+        <field name="name">mrp.bom.form.modular.type</field>
+        <field name="model">mrp.bom</field>
+        <field name="inherit_id" ref="mrp.mrp_bom_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='bom_line_ids']//list//field[@name='product_qty']" position="before">
+                <field name="modular_type_id" string="Modular Types"/>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>
diff --git a/sale_mrp_modular_type/views/product_template_views.xml b/sale_mrp_modular_type/views/product_template_views.xml
new file mode 100644
index 00000000000..96b90043c3b
--- /dev/null
+++ b/sale_mrp_modular_type/views/product_template_views.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="product_template_form_view_inherit_modular_types" model="ir.ui.view">
+        <field name="name">product.template.form.modular.types</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='group_general']" position="inside">
+                <field name="modular_type_ids" widget="many2many_tags"/>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>
diff --git a/sale_mrp_modular_type/views/sale_order_views.xml b/sale_mrp_modular_type/views/sale_order_views.xml
new file mode 100644
index 00000000000..597f30ba5d4
--- /dev/null
+++ b/sale_mrp_modular_type/views/sale_order_views.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="action_modular_type_wizard" model="ir.actions.act_window">
+        <field name="name">Modular Type Value</field>
+        <field name="res_model">modular.type.wizard</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+    <record id="sale_order_form_view_inherit_modular_types" model="ir.ui.view">
+        <field name="name">sale.order.form.modular.types</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='product_template_id']" position="after">
+                <button
+                    name="%(action_modular_type_wizard)d"
+                    type="action"
+                    icon="fa-flask"
+                    context="{'active_order_line_id': id}"
+                    invisible="not has_modular_type"
+                />
+            </xpath>
+        </field>
+    </record>
+
+</odoo>
diff --git a/sale_mrp_modular_type/wizard/__init__.py b/sale_mrp_modular_type/wizard/__init__.py
new file mode 100644
index 00000000000..66e64aedc69
--- /dev/null
+++ b/sale_mrp_modular_type/wizard/__init__.py
@@ -0,0 +1 @@
+from . import modular_type_wizard
diff --git a/sale_mrp_modular_type/wizard/modular_type_wizard.py b/sale_mrp_modular_type/wizard/modular_type_wizard.py
new file mode 100644
index 00000000000..b71e2e9b6a4
--- /dev/null
+++ b/sale_mrp_modular_type/wizard/modular_type_wizard.py
@@ -0,0 +1,51 @@
+from odoo import api, fields, models
+
+
+class ModularTypeWizard(models.TransientModel):
+    _name = 'modular.type.wizard'
+    _description = 'Modular Type Wizard'
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        order_line = self.env['sale.order.line'].browse(
+            self.env.context.get('active_order_line_id')
+        )
+        product = order_line.product_template_id
+        res.update({
+            'product_id': product.id,
+            'wizard_line_ids': [
+                (0, 0, {'modular_type_id': mt.id, 'value': 0})
+                for mt in product.modular_type_ids
+            ]
+        })
+        return res
+
+    product_id = fields.Many2one('product.template', readonly=True)
+    wizard_line_ids = fields.One2many('modular.type.wizard.line', 'wizard_id')
+
+    def add_modular_value(self):
+        active_order_line_id = self.env.context.get('active_order_line_id')
+        for line in self.wizard_line_ids:
+            existing = self.env['sale.order.line.modular.value'].search([
+                ('order_line_id', '=', active_order_line_id),
+                ('modular_type_id', '=', line.modular_type_id.id),
+            ], limit=1)
+            if existing:
+                existing.value = line.value
+            else:
+                self.env['sale.order.line.modular.value'].create({
+                    'order_line_id': active_order_line_id,
+                    'modular_type_id': line.modular_type_id.id,
+                    'value': line.value,
+                })
+        return
+
+
+class ModularTypeWizardLine(models.TransientModel):
+    _name = 'modular.type.wizard.line'
+    _description = 'Modular Type Wizard Line'
+
+    wizard_id = fields.Many2one('modular.type.wizard')
+    modular_type_id = fields.Many2one('modular.type')
+    value = fields.Float(default=0)
diff --git a/sale_mrp_modular_type/wizard/modular_type_wizard_views.xml b/sale_mrp_modular_type/wizard/modular_type_wizard_views.xml
new file mode 100644
index 00000000000..9db3f6c5b5f
--- /dev/null
+++ b/sale_mrp_modular_type/wizard/modular_type_wizard_views.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="modular_type_wizard_view_form" model="ir.ui.view">
+        <field name="name">modular.type.wizard.view.form</field>
+        <field name="model">modular.type.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <field name="wizard_line_ids" nolabel="1">
+                    <list editable="bottom" create="false" delete="false">
+                        <field name="modular_type_id"/>
+                        <field name="value"/>
+                    </list>
+                </field>
+                <footer>
+                    <button string="Add" type="object" name="add_modular_value" class="btn-primary"/>
+                    <button string="Cancel" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+</odoo>
\ No newline at end of file