From c62d637f56e050e5eea27d389387d8c0ecc65b9f Mon Sep 17 00:00:00 2001
From: git_admin <gitea@local.domain>
Date: Tue, 28 Apr 2026 07:35:28 +0000
Subject: [PATCH] Tower: upload at_accounting 18.0.1.7 (via marketplace)

---
 .../models/account_fiscal_year.py             | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 addons/at_accounting/models/account_fiscal_year.py

diff --git a/addons/at_accounting/models/account_fiscal_year.py b/addons/at_accounting/models/account_fiscal_year.py
new file mode 100644
index 0000000..64169f7
--- /dev/null
+++ b/addons/at_accounting/models/account_fiscal_year.py
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+
+from odoo.exceptions import ValidationError
+from odoo import api, fields, models, _
+
+
+from datetime import datetime
+
+
+class AccountFiscalYear(models.Model):
+    _name = 'account.fiscal.year'
+    _description = 'Fiscal Year'
+
+    name = fields.Char(string='Name', required=True)
+    date_from = fields.Date(string='Start Date', required=True,
+        help='Start Date, included in the fiscal year.')
+    date_to = fields.Date(string='End Date', required=True,
+        help='Ending Date, included in the fiscal year.')
+    company_id = fields.Many2one('res.company', string='Company', required=True,
+        default=lambda self: self.env.company)
+
+    @api.constrains('date_from', 'date_to', 'company_id')
+    def _check_dates(self):
+        '''
+        Check interleaving between fiscal years.
+        There are 3 cases to consider:
+
+        s1   s2   e1   e2
+        (    [----)----]
+
+        s2   s1   e2   e1
+        [----(----]    )
+
+        s1   s2   e2   e1
+        (    [----]    )
+        '''
+        for fy in self:
+            # Starting date must be prior to the ending date
+            date_from = fy.date_from
+            date_to = fy.date_to
+            if date_to < date_from:
+                raise ValidationError(_('The ending date must not be prior to the starting date.'))
+            if fy.company_id.parent_id:
+                raise ValidationError(_('You cannot have a fiscal year on a child company.'))
+
+            domain = [
+                ('id', '!=', fy.id),
+                ('company_id', '=', fy.company_id.id),
+                '|', '|',
+                '&', ('date_from', '<=', fy.date_from), ('date_to', '>=', fy.date_from),
+                '&', ('date_from', '<=', fy.date_to), ('date_to', '>=', fy.date_to),
+                '&', ('date_from', '<=', fy.date_from), ('date_to', '>=', fy.date_to),
+            ]
+
+            if self.search_count(domain) > 0:
+                raise ValidationError(_('You can not have an overlap between two fiscal years, please correct the start and/or end dates of your fiscal years.'))