From fa42c7a00b5a4ad0beec5248b7b106a9fccdbd32 Mon Sep 17 00:00:00 2001
From: Sven Reichel <github-sr@hotmail.com>
Date: Mon, 6 Jan 2025 20:09:55 +0100
Subject: [PATCH] Fixes coupon-code usage with today start/end date

---
 app/code/core/Mage/SalesRule/Model/Resource/Rule.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/app/code/core/Mage/SalesRule/Model/Resource/Rule.php b/app/code/core/Mage/SalesRule/Model/Resource/Rule.php
index 908e9d3a380..6fc060aa23a 100644
--- a/app/code/core/Mage/SalesRule/Model/Resource/Rule.php
+++ b/app/code/core/Mage/SalesRule/Model/Resource/Rule.php
@@ -68,6 +68,7 @@ protected function _afterLoad(Mage_Core_Model_Abstract $object)
      *
      *
      * @return $this
+     * @throws Zend_Date_Exception
      */
     public function _beforeSave(Mage_Core_Model_Abstract $object)
     {
@@ -75,6 +76,16 @@ public function _beforeSave(Mage_Core_Model_Abstract $object)
             $object->setDiscountQty(new Zend_Db_Expr('NULL'));
         }
 
+        $dateFrom = $object->getFromDate();
+        $dateTo = $object->getToDate();
+
+        # fix when from and to day are the same
+        if (($dateFrom instanceof Zend_Date && $dateTo instanceof Zend_Date) &&
+            ($dateFrom->getTimestamp() === $dateTo->getTimestamp())
+        ) {
+            $dateTo->setHour(23)->setMinute(59)->setSecond(59);
+        }
+
         parent::_beforeSave($object);
         return $this;
     }