[16.0][ADD] purchase_order_report_hide_tax: New module

purchase_order_report_hide_tax/README.rst

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+======================================
+Purchase order line hide tax in report
+======================================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:c3f8c634c1fae23b76f78082b36599f63225f7b3b09f33d3e5fa90f5b185f557
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Alpha-red.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Alpha
+.. |badge2| image:: https://img.shields.io/badge/licence-LGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
+    :alt: License: LGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fpurchase--reporting-lightgray.png?logo=github
+    :target: https://github.com/OCA/purchase-reporting/tree/16.0/purchase_order_report_hide_tax
+    :alt: OCA/purchase-reporting
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/purchase-reporting-16-0/purchase-reporting-16-0-purchase_order_report_hide_tax
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/purchase-reporting&target_branch=16.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+Hide taxes column in the purchase order document that is sent to the
+vendor.
+
+.. IMPORTANT::
+   This is an alpha version, the data model and design can change at any time without warning.
+   Only for development or testing purpose, do not use in production.
+   `More details on development status <https://odoo-community.org/page/development-status>`_
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Use Cases / Context
+===================
+
+When the taxes are the same in every purchase line, that information
+might be redundant with the taxes summary and takes valuable space that
+other columns might take.
+
+This might be event more annoying when there's tax exemptions like in EU
+intracomunitary operations.
+
+Usage
+=====
+
+Whenever the taxes are in the same group for the whole order the column
+won't be displayed in the purchase order printed report.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/purchase-reporting/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/purchase-reporting/issues/new?body=module:%20purchase_order_report_hide_tax%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
+-------
+
+* Moduon
+
+Contributors
+------------
+
+- David Vidal (``Moduon <https://www.moduon.team/>``\ \_\_)
+
+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.
+
+.. |maintainer-chienandalu| image:: https://github.com/chienandalu.png?size=40px
+    :target: https://github.com/chienandalu
+    :alt: chienandalu
+.. |maintainer-rafaelbn| image:: https://github.com/rafaelbn.png?size=40px
+    :target: https://github.com/rafaelbn
+    :alt: rafaelbn
+
+Current `maintainers <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-chienandalu| |maintainer-rafaelbn| 
+
+This module is part of the `OCA/purchase-reporting <https://github.com/OCA/purchase-reporting/tree/16.0/purchase_order_report_hide_tax>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

purchase_order_report_hide_tax/__init__.py

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+from . import models

purchase_order_report_hide_tax/__manifest__.py

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+# Copyright 2025 Moduon Team S.L.
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+{
+    "name": "Purchase order line hide tax in report",
+    "summary": "Hide taxes column when they don't add value",
+    "version": "16.0.1.0.1",
+    "development_status": "Alpha",
+    "category": "Purchases",
+    "website": "https://github.com/OCA/purchase-reporting",
+    "author": "Moduon, Odoo Community Association (OCA)",
+    "maintainers": ["chienandalu", "rafaelbn"],
+    "license": "LGPL-3",
+    "depends": ["purchase"],
+    "data": [
+        "reports/purchase_order_report_template.xml",
+    ],
+}

purchase_order_report_hide_tax/models/__init__.py

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+from . import purchase_order

purchase_order_report_hide_tax/models/purchase_order.py

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+# Copyright 2025 Moduon Team S.L.
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+from odoo import fields, models
+
+
+class PurchaseOrder(models.Model):
+    _inherit = "purchase.order"
+
+    show_tax_column_in_report = fields.Boolean(
+        compute="_compute_show_tax_column_in_report"
+    )
+
+    def _compute_show_tax_column_in_report(self):
+        self.show_tax_column_in_report = True
+        for order in self.filtered("order_line"):
+            order_lines = order.order_line.filtered(lambda x: not x.display_type)
+            # Can be a recordset if several taxes apply
+            first_line_tax_group = fields.first(order_lines).taxes_id.tax_group_id
+            # Mixed group taxes, let's show them for clarity
+            order.show_tax_column_in_report = (
+                first_line_tax_group != order_lines.taxes_id.tax_group_id
+            )

purchase_order_report_hide_tax/readme/CONTEXT.md

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+When the taxes are the same in every purchase line, that information might be redundant with the taxes summary and takes valuable space that other columns might take.
+
+This might be event more annoying when there's tax exemptions like in EU intracomunitary operations.

purchase_order_report_hide_tax/readme/CONTRIBUTORS.md

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+* David Vidal (`Moduon <https://www.moduon.team/>`__)

purchase_order_report_hide_tax/readme/DESCRIPTION.md

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+Hide taxes column in the purchase order document that is sent to the vendor.

purchase_order_report_hide_tax/readme/USAGE.md

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+Whenever the taxes are in the same group for the whole order the column won't be
+displayed in the purchase order printed report.

purchase_order_report_hide_tax/reports/purchase_order_report_template.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <template
+        id="report_purchaseorder_document"
+        inherit_id="purchase.report_purchaseorder_document"
+    >
+        <xpath expr="//th[@name='th_taxes']" position="attributes">
+            <attribute name="t-if">o.show_tax_column_in_report</attribute>
+        </xpath>
+        <xpath expr="//td[@name='td_taxes']" position="attributes">
+            <attribute name="t-if">o.show_tax_column_in_report</attribute>
+        </xpath>
+    </template>
+</odoo>