[FIX]: Updated PR with correct weight

product_total_weight_from_packaging/README.rst

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+===================================
+Product Total Weight From Packaging
+===================================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fproduct--attribute-lightgray.png?logo=github
+    :target: https://github.com/OCA/product-attribute/tree/14.0/product_total_weight_from_packaging
+    :alt: OCA/product-attribute
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/product-attribute-14-0/product-attribute-14-0-product_total_weight_from_packaging
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/135/14.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+This module provides a function to estimate the weight of a given quantity of a product,
+taking into account the product packaging's weights.
+
+It uses the module `stock_packaging_calculator` to get weight from product packagings
+having a weight defined first and fallback on product weight field
+if no weight is defined on any of the packaging.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/product-attribute/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/product-attribute/issues/new?body=module:%20product_total_weight_from_packaging%0Aversion:%2014.0%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
+~~~~~~~
+
+* Camptocamp
+
+Contributors
+~~~~~~~~~~~~
+
+* Akim Juillerat <[email protected]>
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+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.
+
+This module is part of the `OCA/product-attribute <https://github.com/OCA/product-attribute/tree/14.0/product_total_weight_from_packaging>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

product_total_weight_from_packaging/__init__.py

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+from . import models

product_total_weight_from_packaging/__manifest__.py

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+# Copyright 2020 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+{
+    "name": "Product Total Weight From Packaging",
+    "summary": "Compute estimated weight based on product's packaging weights",
+    "version": "16.0.1.0.0",
+    "development_status": "Beta",
+    "category": "Warehouse Management",
+    "website": "https://github.com/OCA/product-attribute",
+    "author": "Camptocamp, Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "installable": True,
+    "depends": ["stock_packaging_calculator", "product_packaging_dimension"],
+}

product_total_weight_from_packaging/i18n/product_total_weight_from_packaging.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* product_total_weight_from_packaging
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2022-11-30 15:44+0000\n"
+"PO-Revision-Date: 2022-11-30 15:44+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: product_total_weight_from_packaging
+#: model:ir.model,name:product_total_weight_from_packaging.model_product_product
+msgid "Product Variant"
+msgstr ""

product_total_weight_from_packaging/models/__init__.py

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+from . import product

product_total_weight_from_packaging/models/product.py

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+# Copyright 2020 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+from odoo import models
+
+
+class ProductProduct(models.Model):
+
+    _inherit = "product.product"
+
+    def get_total_weight_from_packaging(self, qty):
+        self.ensure_one()
+        qty_by_packaging_with_weight = self.with_context(
+            **{
+                "_packaging_filter": lambda p: p.weight,
+                "_packaging_values_handler": self._prepare_qty_by_packaging_values_with_weight,  # noqa
+            }
+        ).product_qty_by_packaging(qty)
+        total_weight = sum(
+            [
+                pck.get("qty", 0) * pck.get("weight", 0)
+                for pck in qty_by_packaging_with_weight
+            ]
+        )
+        return total_weight
+
+    def _prepare_qty_by_packaging_values_with_weight(
+        self, packaging_tuple, qty_per_pkg
+    ):
+        res = {
+            "qty": qty_per_pkg,
+        }
+        if packaging_tuple.is_unit:
+            res["weight"] = self.weight
+        else:
+            packaging = self.env["product.packaging"].browse(packaging_tuple.id)
+            res["weight"] = packaging.weight
+        return res

product_total_weight_from_packaging/readme/CONTRIBUTORS.rst

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+* Akim Juillerat <[email protected]>
+* Hughes Damry <[email protected]>

product_total_weight_from_packaging/readme/DESCRIPTION.rst

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+This module provides a function to estimate the weight of a given quantity of a product,
+taking into account the product packaging's weights.
+
+It uses the module `stock_packaging_calculator` to get weight from product packagings
+having a weight defined first and fallback on product weight field
+if no weight is defined on any of the packaging.