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MRP BoM Line formula for quantity
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Compute the quantity of a Production Line using a formula defined in the BoM Line.

**Table of contents**

.. contents::
   :local:

Configuration
=============

In any BoM line, fill the `Quantity Formula` field.

The following values are available:

- `bom_line`: the current BoM line,
- `production`: the production order being created,
- `product`: the Product of current BoM line,
- `product_uom_qty`: the quantity of the production order line,
- `product_uom`: the UoM of the Product of current BoM line,
- `operation`: the operation where the components are consumed for current BoM line,

The computed quantity must be assigned to the `quantity` variable.

Usage
=====

This module can be used to customize the quantity of a component based on a custom attribute value selected on the product.
The following configuration works when the `website_sale` module is installed.

In order to do that, configure as follows:

#. Create an attribute "Component quantity" with a custom value

   .. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/product_attribute.png

#. Create and publish a Product having the configured custom value, and the MTO route (archived by default)

   .. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/product_tab_attributes.png
#. Add a BoM to the product, where one Component has the following formula for the quantity:

   .. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/bom.png

   .. code-block:: python

      sale_lines = production.move_dest_ids.sale_line_id
      produced_template = production.product_tmpl_id
      produced_template_sale_line = sale_lines.filtered(lambda l: l.product_template_id == produced_template)
      custom_attributes_values = produced_template_sale_line.product_custom_attribute_value_ids.with_context(lang=None)
      component_quantity_attribute_value = custom_attributes_values.filtered(
          lambda av: av.custom_product_template_attribute_value_id.attribute_id.name == "Component quantity"
      )
      component_quantity = component_quantity_attribute_value.custom_value
      quantity = int(component_quantity)

#. In the e-commerce, select a quantity for the custom value and buy the product

   .. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/website_sale_product.png

#. Confirm the sale order

   .. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/sale_order.png

a Production order with the selected value of Component will be created

.. image:: https://raw.githubusercontent.com/OCA/manufacture/16.0/mrp_bom_line_formula_quantity/static/description/images/production_order.png

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/manufacture/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/OCA/manufacture/issues/new?body=module:%20mrp_bom_line_formula_quantity%0Aversion:%2016.0%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
~~~~~~~

* Aion Tech

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

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OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.

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    :alt: SirAionTech

Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:

|maintainer-SirAionTech| 

This module is part of the `OCA/manufacture <https://github.com/OCA/manufacture/tree/16.0/mrp_bom_line_formula_quantity>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
