Initial commit: Odoo 18.0-20251222 extra-addons

account_invoice_show_currency_rate/README.rst

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+.. image:: https://odoo-community.org/readme-banner-image
+   :target: https://odoo-community.org/get-involved?utm_source=readme
+   :alt: Odoo Community Association
+
+==================================
+Account Invoice Show Currency Rate
+==================================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:26999adc59c9ed765b895ff70a1ad1f47f186ac916fdd18adafab0e0fc5ba802
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |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/license-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%2Faccount--invoicing-lightgray.png?logo=github
+    :target: https://github.com/OCA/account-invoicing/tree/18.0/account_invoice_show_currency_rate
+    :alt: OCA/account-invoicing
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/account-invoicing-18-0/account-invoicing-18-0-account_invoice_show_currency_rate
+    :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/account-invoicing&target_branch=18.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+Odoo computes the currency rate applied on invoices, as well as for
+journal items. However, these rates are simply computed based on the
+currency rates that are configured in the system.
+
+This module ensures that for posted entries the currency rates are
+computed taking into account the actual amounts in the specific
+currency. This ensures that the correct rates are displayed when an
+invoice was posted with a different rate configuration, or if the user
+manually changed the amount in currency.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Configuration
+=============
+
+Enable the option for multiple currencies in your instance:
+
+1. Go to Invoicing > Configuration > Settings > Currencies >
+   Multi-Currencies
+2. Go to any draft invoice
+3. Change the invoice currency
+4. The proper currency rate, based on the invoice date and the selected
+   currency, will be shown.
+5. Add any invoice line.
+6. Odoo has already generated the journal item lines with the rate
+   applied, so the currency rate shown is get from the division between
+   the amount in currency by the amount in company currency.
+
+Some rates must be defined (and be distinct to 1.0) for currencies
+different from the company default.
+
+1. Go to Invoicing > Configuration > Currencies and go to EUR
+2. Go to Rates smart-button
+3. Update 01/01/2010 record and change rate to 1.5
+
+Usage
+=====
+
+To use this module, you need to:
+
+1. Go to Invoicing > Customer > Invoice
+2. Create Invoice and set Currency distinct to company currency (EUR for
+   example)
+3. Rate account show according to currency defined.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/account-invoicing/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/account-invoicing/issues/new?body=module:%20account_invoice_show_currency_rate%0Aversion:%2018.0%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
+-------
+
+* Tecnativa
+
+Contributors
+------------
+
+- `Tecnativa <https://www.tecnativa.com>`__:
+
+  - Pedro M. Baeza
+  - Víctor Martínez
+
+- `ForgeFlow <https://www.forgeflow.com>`__:
+
+  - Jordi Masvidal
+
+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-victoralmau| image:: https://github.com/victoralmau.png?size=40px
+    :target: https://github.com/victoralmau
+    :alt: victoralmau
+
+Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-victoralmau| 
+
+This module is part of the `OCA/account-invoicing <https://github.com/OCA/account-invoicing/tree/18.0/account_invoice_show_currency_rate>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

account_invoice_show_currency_rate/__init__.py

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+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import models

account_invoice_show_currency_rate/__manifest__.py

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+# Copyright 2021 Tecnativa - Víctor Martínez
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    "name": "Account Invoice Show Currency Rate",
+    "summary": "Show currency rate in invoices.",
+    "version": "18.0.1.0.1",
+    "category": "Accounting & Finance",
+    "website": "https://github.com/OCA/account-invoicing",
+    "author": "Tecnativa, Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "installable": True,
+    "depends": ["account"],
+    "maintainers": ["victoralmau"],
+    "data": ["views/account_move_view.xml"],
+}

account_invoice_show_currency_rate/i18n/account_invoice_show_currency_rate.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* account_invoice_show_currency_rate
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0\n"
+"Report-Msgid-Bugs-To: \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: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move
+msgid "Journal Entry"
+msgstr ""
+
+#. module: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move_line
+msgid "Journal Item"
+msgstr ""
+
+#. module: account_invoice_show_currency_rate
+#: model_terms:ir.ui.view,arch_db:account_invoice_show_currency_rate.account_move_form
+msgid "Rate"
+msgstr ""

account_invoice_show_currency_rate/i18n/es.po

@@ -0,0 +1,42 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* account_invoice_show_currency_rate
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 13.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-07-09 11:07+0000\n"
+"PO-Revision-Date: 2023-08-14 09:11+0000\n"
+"Last-Translator: gelo joga Rodríguez <gelo.joga@factorlibre.com>\n"
+"Language-Team: \n"
+"Language: es\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 4.17\n"
+
+#. module: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move
+msgid "Journal Entry"
+msgstr "Asiento contable"
+
+#. module: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move_line
+msgid "Journal Item"
+msgstr ""
+
+#. module: account_invoice_show_currency_rate
+#: model_terms:ir.ui.view,arch_db:account_invoice_show_currency_rate.account_move_form
+msgid "Rate"
+msgstr ""
+
+#~ msgid "Rate amount"
+#~ msgstr "Valor de cambio de moneda"
+
+#~ msgid "Show Currency Rate Amount"
+#~ msgstr "Mostrar importe en moneda"
+
+#~ msgid "Journal Entries"
+#~ msgstr "Asientos contables"

account_invoice_show_currency_rate/i18n/it.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* account_invoice_show_currency_rate
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"PO-Revision-Date: 2025-02-21 18:06+0000\n"
+"Last-Translator: mymage <stefano.consolaro@mymage.it>\n"
+"Language-Team: none\n"
+"Language: it\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"X-Generator: Weblate 5.6.2\n"
+
+#. module: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move
+msgid "Journal Entry"
+msgstr "Registrazione contabile"
+
+#. module: account_invoice_show_currency_rate
+#: model:ir.model,name:account_invoice_show_currency_rate.model_account_move_line
+msgid "Journal Item"
+msgstr "Movimento contabile"
+
+#. module: account_invoice_show_currency_rate
+#: model_terms:ir.ui.view,arch_db:account_invoice_show_currency_rate.account_move_form
+msgid "Rate"
+msgstr "Tasso"
+
+#~ msgid "Rate amount"
+#~ msgstr "Valore tasso"
+
+#~ msgid "Show Currency Rate Amount"
+#~ msgstr "Visualizza valore tasso valuta"

account_invoice_show_currency_rate/models/__init__.py

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+from . import account_move

account_invoice_show_currency_rate/models/account_move.py

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+# Copyright 2021 Tecnativa - Víctor Martínez
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import api, models
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    @api.depends(
+        "currency_id",
+        "company_currency_id",
+        "company_id",
+        "invoice_date",
+        "state",
+        "line_ids.amount_currency",
+        "line_ids.balance",
+    )
+    def _compute_invoice_currency_rate(self):
+        # If move is posted, get rate based on line amount
+        res = super()._compute_invoice_currency_rate()
+        for move in self:
+            lines = move.line_ids.filtered(lambda x: abs(x.amount_currency) > 0)
+            if move.state != "posted" or not lines or not move.currency_id:
+                continue
+            amount_currency_positive = sum(
+                [abs(amc) for amc in lines.mapped("amount_currency")]
+            )
+            total_balance_positive = sum([abs(b) for b in lines.mapped("balance")])
+            move.invoice_currency_rate = (
+                amount_currency_positive / total_balance_positive
+            )
+        return res
+
+    # Add the 'state', 'line_ids.amount_currency', and 'line_ids.balance'
+    # dependencies to the base dependencies to recalculate the expected exchange rate.
+    #
+    # Without this change, which causes expected_currency_rate and invoice_currency_rate
+    # to be updated simultaneously, invoice_currency_rate is updated with an outdated
+    # expected_currency_rate value in account.move.
+    @api.depends("state", "line_ids.amount_currency", "line_ids.balance")
+    def _compute_expected_currency_rate(self):
+        return super()._compute_expected_currency_rate()
+
+
+class AccountMoveLine(models.Model):
+    _inherit = "account.move.line"
+
+    @api.depends(
+        "currency_id",
+        "company_id",
+        "move_id.invoice_currency_rate",
+        "move_id.date",
+        "move_id.state",
+        "amount_currency",
+        "balance",
+    )
+    def _compute_currency_rate(self):
+        # If move is posted, get rate based on line amount
+        res = super()._compute_currency_rate()
+        for line in self:
+            if line.move_id.state != "posted" or not line.amount_currency:
+                continue
+            line.currency_rate = (
+                abs(line.amount_currency) / abs(line.balance) if line.balance else 0
+            )
+        return res

account_invoice_show_currency_rate/pyproject.toml

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+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"

account_invoice_show_currency_rate/readme/CONFIGURE.md

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+Enable the option for multiple currencies in your instance:
+
+1.  Go to Invoicing \> Configuration \> Settings \> Currencies \>
+    Multi-Currencies
+2.  Go to any draft invoice
+3.  Change the invoice currency
+4.  The proper currency rate, based on the invoice date and the selected
+    currency, will be shown.
+5.  Add any invoice line.
+6.  Odoo has already generated the journal item lines with the rate
+    applied, so the currency rate shown is get from the division between
+    the amount in currency by the amount in company currency.
+
+Some rates must be defined (and be distinct to 1.0) for currencies
+different from the company default.
+
+1.  Go to Invoicing \> Configuration \> Currencies and go to EUR
+2.  Go to Rates smart-button
+3.  Update 01/01/2010 record and change rate to 1.5

account_invoice_show_currency_rate/readme/CONTRIBUTORS.md

@@ -0,0 +1,5 @@
+- [Tecnativa](https://www.tecnativa.com):
+  - Pedro M. Baeza
+  - Víctor Martínez
+- [ForgeFlow](https://www.forgeflow.com):
+  - Jordi Masvidal

account_invoice_show_currency_rate/readme/DESCRIPTION.md

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+Odoo computes the currency rate applied on invoices, as well as for journal
+items. However, these rates are simply computed based on the currency rates
+that are configured in the system.
+
+This module ensures that for posted entries the currency rates are computed
+taking into account the actual amounts in the specific currency. This ensures
+that the correct rates are displayed when an invoice was posted with a different
+rate configuration, or if the user manually changed the amount in currency.

account_invoice_show_currency_rate/readme/USAGE.md

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+To use this module, you need to:
+
+1.  Go to Invoicing \> Customer \> Invoice
+2.  Create Invoice and set Currency distinct to company currency (EUR
+    for example)
+3.  Rate account show according to currency defined.

account_invoice_show_currency_rate/static/description/index.html

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+  font-weight: bold ;
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+
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+  border: 0px;
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+  border-collapse: collapse;
+}
+table.docutils.booktabs * {
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+h4 tt.docutils, h5 tt.docutils, h6 tt.docutils {
+  font-size: 100% }
+
+ul.auto-toc {
+  list-style-type: none }
+
+</style>
+</head>
+<body>
+<div class="document">
+
+
+<a class="reference external image-reference" href="https://odoo-community.org/get-involved?utm_source=readme">
+<img alt="Odoo Community Association" src="https://odoo-community.org/readme-banner-image" />
+</a>
+<div class="section" id="account-invoice-show-currency-rate">
+<h1>Account Invoice Show Currency Rate</h1>
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! source digest: sha256:26999adc59c9ed765b895ff70a1ad1f47f186ac916fdd18adafab0e0fc5ba802
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/license-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/account-invoicing/tree/18.0/account_invoice_show_currency_rate"><img alt="OCA/account-invoicing" src="https://img.shields.io/badge/github-OCA%2Faccount--invoicing-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/account-invoicing-18-0/account-invoicing-18-0-account_invoice_show_currency_rate"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/account-invoicing&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
+<p>Odoo computes the currency rate applied on invoices, as well as for
+journal items. However, these rates are simply computed based on the
+currency rates that are configured in the system.</p>
+<p>This module ensures that for posted entries the currency rates are
+computed taking into account the actual amounts in the specific
+currency. This ensures that the correct rates are displayed when an
+invoice was posted with a different rate configuration, or if the user
+manually changed the amount in currency.</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#configuration" id="toc-entry-1">Configuration</a></li>
+<li><a class="reference internal" href="#usage" id="toc-entry-2">Usage</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="toc-entry-3">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="toc-entry-4">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="toc-entry-5">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="toc-entry-6">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="toc-entry-7">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="configuration">
+<h2><a class="toc-backref" href="#toc-entry-1">Configuration</a></h2>
+<p>Enable the option for multiple currencies in your instance:</p>
+<ol class="arabic simple">
+<li>Go to Invoicing &gt; Configuration &gt; Settings &gt; Currencies &gt;
+Multi-Currencies</li>
+<li>Go to any draft invoice</li>
+<li>Change the invoice currency</li>
+<li>The proper currency rate, based on the invoice date and the selected
+currency, will be shown.</li>
+<li>Add any invoice line.</li>
+<li>Odoo has already generated the journal item lines with the rate
+applied, so the currency rate shown is get from the division between
+the amount in currency by the amount in company currency.</li>
+</ol>
+<p>Some rates must be defined (and be distinct to 1.0) for currencies
+different from the company default.</p>
+<ol class="arabic simple">
+<li>Go to Invoicing &gt; Configuration &gt; Currencies and go to EUR</li>
+<li>Go to Rates smart-button</li>
+<li>Update 01/01/2010 record and change rate to 1.5</li>
+</ol>
+</div>
+<div class="section" id="usage">
+<h2><a class="toc-backref" href="#toc-entry-2">Usage</a></h2>
+<p>To use this module, you need to:</p>
+<ol class="arabic simple">
+<li>Go to Invoicing &gt; Customer &gt; Invoice</li>
+<li>Create Invoice and set Currency distinct to company currency (EUR for
+example)</li>
+<li>Rate account show according to currency defined.</li>
+</ol>
+</div>
+<div class="section" id="bug-tracker">
+<h2><a class="toc-backref" href="#toc-entry-3">Bug Tracker</a></h2>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/account-invoicing/issues">GitHub Issues</a>.
+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
+<a class="reference external" href="https://github.com/OCA/account-invoicing/issues/new?body=module:%20account_invoice_show_currency_rate%0Aversion:%2018.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h2><a class="toc-backref" href="#toc-entry-4">Credits</a></h2>
+<div class="section" id="authors">
+<h3><a class="toc-backref" href="#toc-entry-5">Authors</a></h3>
+<ul class="simple">
+<li>Tecnativa</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h3><a class="toc-backref" href="#toc-entry-6">Contributors</a></h3>
+<ul class="simple">
+<li><a class="reference external" href="https://www.tecnativa.com">Tecnativa</a>:<ul>
+<li>Pedro M. Baeza</li>
+<li>Víctor Martínez</li>
+</ul>
+</li>
+<li><a class="reference external" href="https://www.forgeflow.com">ForgeFlow</a>:<ul>
+<li>Jordi Masvidal</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h3><a class="toc-backref" href="#toc-entry-7">Maintainers</a></h3>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org">
+<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
+</a>
+<p>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.</p>
+<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainer</a>:</p>
+<p><a class="reference external image-reference" href="https://github.com/victoralmau"><img alt="victoralmau" src="https://github.com/victoralmau.png?size=40px" /></a></p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/account-invoicing/tree/18.0/account_invoice_show_currency_rate">OCA/account-invoicing</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>

account_invoice_show_currency_rate/tests/__init__.py

@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+
+from . import test_account_move

account_invoice_show_currency_rate/tests/test_account_move.py

@@ -0,0 +1,95 @@
+# Copyright 2021 Tecnativa - Víctor Martínez
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+
+from odoo import fields
+from odoo.tests import Form, common
+
+
+class TestAccountMove(common.TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        usd = cls.env.ref("base.USD")
+        eur = cls.env.ref("base.EUR")
+        cls.currency = cls.env.ref("base.main_company").currency_id
+        cls.currency_extra = eur if cls.currency == usd else usd
+        cls.currency_extra.active = True
+        cls.account_tax = cls.env["account.tax"].create(
+            {"name": "0%", "amount_type": "fixed", "type_tax_use": "sale", "amount": 0}
+        )
+        cls.partner = cls.env["res.partner"].create({"name": "Partner test"})
+        cls.product = cls.env["product.product"].create(
+            {
+                "name": "Product Test",
+                "list_price": 10,
+                "taxes_id": [(6, 0, [cls.account_tax.id])],
+            }
+        )
+
+        cls.account = cls.env["account.account"].create(
+            {
+                "name": "Test Account",
+                "code": "TEST",
+                "account_type": "asset_receivable",
+                "reconcile": True,
+            }
+        )
+        cls.other_account = cls.env["account.account"].create(
+            {
+                "name": "Test Account",
+                "code": "ACC",
+                "account_type": "income_other",
+                "reconcile": True,
+            }
+        )
+        cls.journal = cls.env["account.journal"].create(
+            {"name": "Test sale journal", "type": "sale", "code": "TEST-SALE"}
+        )
+        cls.pricelist_currency = cls.env["product.pricelist"].create(
+            {"name": "Pricelist Currency", "currency_id": cls.currency.id}
+        )
+        cls.pricelist_currency_extra = cls.env["product.pricelist"].create(
+            {"name": "Pricelist Currency Extra", "currency_id": cls.currency_extra.id}
+        )
+        # Create custom rates to currency + currency_extra
+        cls._create_currency_rate(cls, cls.currency, "2000-01-01", 1.0)
+        cls._create_currency_rate(cls, cls.currency_extra, "2000-01-01", 2.0)
+
+    def _create_currency_rate(self, currency_id, name, rate):
+        self.env["res.currency.rate"].create(
+            {"currency_id": currency_id.id, "name": name, "rate": rate}
+        )
+
+    def _create_invoice(self, currency_id):
+        move_form = Form(
+            self.env["account.move"].with_context(default_move_type="out_invoice")
+        )
+        move_form.partner_id = self.partner
+        move_form.invoice_date = fields.Date.from_string("2000-01-01")
+        move_form.currency_id = currency_id
+        with move_form.invoice_line_ids.new() as line_form:
+            line_form.product_id = self.product
+        invoice = move_form.save()
+        invoice.action_post()
+        return invoice
+
+    def test_01_invoice_currency(self):
+        self.partner.property_product_pricelist = self.pricelist_currency
+        invoice = self._create_invoice(self.currency)
+        self.assertAlmostEqual(invoice.invoice_currency_rate, 1.0, 2)
+        self.assertAlmostEqual(invoice.line_ids[0].currency_rate, 1.0, 2)
+
+    def test_02_invoice_currency_extra(self):
+        self.partner.property_product_pricelist = self.pricelist_currency_extra
+        invoice = self._create_invoice(self.currency_extra)
+        self.assertAlmostEqual(invoice.invoice_currency_rate, 2.0, 2)
+        self.assertAlmostEqual(invoice.line_ids[0].currency_rate, 2.0, 2)
+        rate_custom = self.currency_extra.rate_ids.filtered(
+            lambda x: x.name == fields.Date.from_string("2000-01-01")
+        )
+        rate_custom.rate = 3.0
+        self.assertAlmostEqual(invoice.invoice_currency_rate, 2.0, 2)
+        self.assertAlmostEqual(invoice.line_ids[0].currency_rate, 2.0, 2)
+        invoice.button_draft()
+        self.assertAlmostEqual(invoice.invoice_currency_rate, 3.0, 2)
+        self.assertAlmostEqual(invoice.line_ids[0].currency_rate, 3.0, 2)

account_invoice_show_currency_rate/views/account_move_view.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!--
+License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
+-->
+<odoo>
+    <record id="account_move_form" model="ir.ui.view">
+        <field name="name">account.move.form</field>
+        <field name="model">account.move</field>
+        <field name="inherit_id" ref="account.view_move_form" />
+        <field name="arch" type="xml">
+            <xpath
+                expr="//field[@name='line_ids']/list/field[@name='currency_id']"
+                position="after"
+            >
+                <field
+                    name="currency_rate"
+                    string="Rate"
+                    digits="[12,12]"
+                    groups="base.group_multi_currency"
+                    optional="hide"
+                />
+            </xpath>
+        </field>
+    </record>
+</odoo>