[6456][ADD] account_billing_target_month

account_billing_target_month/README.rst

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+============================
+Account Billing Target Month
+============================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:4727c2352f1c1afcefee757106fa4dbd50bec366643c764c8dd6ed5ec3172e99
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |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-qrtl%2Fhls--custom-lightgray.png?logo=github
+    :target: https://github.com/qrtl/hls-custom/tree/18.0/account_billing_target_month
+    :alt: qrtl/hls-custom
+
+|badge1| |badge2| |badge3|
+
+This module extends ``l10n_jp_summary_invoice`` to add a **Target
+Month** field to the billing document, computed automatically from the
+threshold date. If the threshold date falls on the last day of the
+month, the target month is set to the following month; otherwise it is
+set to the same month as the threshold date.
+
+The target month is also displayed as a prefix in the summary invoice
+PDF title (e.g. "3 Summary Invoice").
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/qrtl/hls-custom/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/qrtl/hls-custom/issues/new?body=module:%20account_billing_target_month%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
+-------
+
+* Quartile
+
+Maintainers
+-----------
+
+This module is part of the `qrtl/hls-custom <https://github.com/qrtl/hls-custom/tree/18.0/account_billing_target_month>`_ project on GitHub.
+
+You are welcome to contribute.

account_billing_target_month/__init__.py

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+# Copyright 2026 Quartile
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import models

account_billing_target_month/__manifest__.py

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+# Copyright 2026 Quartile
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Account Billing Target Month",
+    "version": "18.0.1.0.0",
+    "author": "Quartile",
+    "website": "https://www.quartile.co",
+    "category": "Invoice",
+    "license": "AGPL-3",
+    "depends": ["l10n_jp_summary_invoice"],
+    "data": [
+        "views/account_billing_views.xml",
+        "reports/report_summary_invoice_templates.xml",
+    ],
+    "installable": True,
+}

account_billing_target_month/i18n/ja.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* account_billing_target_month
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 18.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2026-04-01 03:54+0000\n"
+"PO-Revision-Date: 2026-04-01 03:54+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: account_billing_target_month
+#: model:ir.model,name:account_billing_target_month.model_account_billing
+msgid "Account Billing"
+msgstr "合計請求書"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__4
+msgid "April"
+msgstr "4月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__8
+msgid "August"
+msgstr "8月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__12
+msgid "December"
+msgstr "12月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__2
+msgid "February"
+msgstr "2月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__1
+msgid "January"
+msgstr "1月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__7
+msgid "July"
+msgstr "7月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__6
+msgid "June"
+msgstr "6月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__3
+msgid "March"
+msgstr "3月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__5
+msgid "May"
+msgstr "5月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__11
+msgid "November"
+msgstr "11月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__10
+msgid "October"
+msgstr "10月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields.selection,name:account_billing_target_month.selection__account_billing__target_month__9
+msgid "September"
+msgstr "9月"
+
+#. module: account_billing_target_month
+#: model:ir.model.fields,field_description:account_billing_target_month.field_account_billing__target_month
+#: model_terms:ir.ui.view,arch_db:account_billing_target_month.report_summary_invoice_document
+msgid "Target Month"
+msgstr "対象月"

account_billing_target_month/models/__init__.py

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+# Copyright 2026 Quartile
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import account_billing

account_billing_target_month/models/account_billing.py

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+# Copyright 2026 Quartile
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class AccountBilling(models.Model):
+    _inherit = "account.billing"
+
+    target_month = fields.Selection(
+        selection=[
+            ("1", "January"),
+            ("2", "February"),
+            ("3", "March"),
+            ("4", "April"),
+            ("5", "May"),
+            ("6", "June"),
+            ("7", "July"),
+            ("8", "August"),
+            ("9", "September"),
+            ("10", "October"),
+            ("11", "November"),
+            ("12", "December"),
+        ],
+        compute="_compute_target_month",
+        store=True,
+        readonly=False,
+    )
+
+    @api.depends("threshold_date")
+    def _compute_target_month(self):
+        for rec in self:
+            if not rec.threshold_date:
+                rec.target_month = False
+                continue
+            rec.target_month = str(rec.threshold_date.month)

account_billing_target_month/pyproject.toml

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

account_billing_target_month/readme/DESCRIPTION.md

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+This module extends `l10n_jp_summary_invoice` to add a **Target Month**
+field to the billing document, computed automatically from the threshold
+date. If the threshold date falls on the last day of the month, the target
+month is set to the following month; otherwise it is set to the same month
+as the threshold date.
+
+The target month is also displayed as a prefix in the summary invoice PDF
+title (e.g. "3 Summary Invoice").

account_billing_target_month/reports/report_summary_invoice_templates.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <template
+        id="report_summary_invoice_document"
+        inherit_id="l10n_jp_summary_invoice.report_summary_invoice_document"
+    >
+        <xpath expr="//h2/span[1]" position="before">
+            <t t-if="o.target_month"><t t-esc="o.target_month" />Target Month </t>
+        </xpath>
+    </template>
+</odoo>