frontend, localization, bugfix

Core/API/Parameter/Parameter.class.php

@@ -160,6 +160,9 @@ class Parameter {
         if ($value instanceof DateTime) {
           $this->value = $value;
           $valid = true;
+        } else if (is_int($value) || (is_string($value) && preg_match("/^\d+$/", $value))) {
+          $this->value = (new \DateTime())->setTimestamp(intval($value));
+          $valid = true;
         } else {
           $format = $this->getFormat();
           $d = DateTime::createFromFormat($format, $value);

Core/API/Parameter/StringType.class.php

@@ -13,11 +13,15 @@ class StringType extends Parameter {
   }
 
   public function parseParam($value): bool {
-    if(!is_string($value)) {
+    if (!parent::parseParam($value)) {
       return false;
     }
 
-    if($this->maxLength > 0 && strlen($value) > $this->maxLength) {
+    if (!is_string($value)) {
+      return false;
+    }
+
+    if ($this->maxLength > 0 && strlen($value) > $this->maxLength) {
       return false;
     }