Add Holiday / Closure Days to SLA to pause SLA timer on defined days, also has a US Holiday Importer

admin/database_updates/2.7.4.php

@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * ITFlow - Database update to version 2.7.4 (from 2.7.3)
+ * Included by admin/database_updates.php - do not access directly
+ */
+
+defined('FROM_DB_UPDATER') || die("Direct file access is not allowed");
+
+    // Closure days for the SLA business calendar. A date listed here yields no
+    // business minutes at all, exactly like a weekday that is not a business
+    // day - holidays are a calendar concept, not a per-ticket pause, so they
+    // never touch sla_history.
+    //
+    // holiday_date is UNIQUE so the US federal holiday generator can be run
+    // repeatedly (and over a year that was partly entered by hand) without
+    // creating duplicates.
+
+    mysqli_query($mysqli, "CREATE TABLE IF NOT EXISTS `business_holidays` (
+        `holiday_id` int(11) NOT NULL AUTO_INCREMENT,
+        `holiday_date` date NOT NULL,
+        `holiday_name` varchar(200) NOT NULL,
+        `holiday_created_at` datetime NOT NULL DEFAULT current_timestamp(),
+        PRIMARY KEY (`holiday_id`),
+        UNIQUE KEY `holiday_date` (`holiday_date`)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci");