first commit

admin/class/smarty_plugins/modifier.format_datetime.php

@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * Smarty plugin.
+ */
+
+/**
+ * Smarty {format_datetime} function plugin.
+ */
+function smarty_modifier_format_datetime($string, $value = null)
+{
+    if ($string == '-0001-11-30') {
+        return '00-00-0000';
+    } elseif ($string instanceof \DateTime) {
+        $datetime = $string;
+    } elseif (empty($string)) {
+        return '';
+    } else {
+        $datetime = new DateTime($string);
+    }
+
+    $format = Settings::getDateFormat().' '.Settings::getTimeFormat();
+
+    return $datetime->format($format);
+}