diff --git a/DataStorage/Database/DataMapperAbstract.php b/DataStorage/Database/DataMapperAbstract.php
index 66e52c62f..c03b23907 100644
--- a/DataStorage/Database/DataMapperAbstract.php
+++ b/DataStorage/Database/DataMapperAbstract.php
@@ -2449,8 +2449,8 @@ class DataMapperAbstract implements DataMapperInterface
     public static function getByRequest(RequestAbstract $request)
     {
         if (!is_null($request->getData('id'))) {
-            $result = static::get($request->getData('id'));
-        } elseif (!is_null($filter = $request->getData('filter'))) {
+            $result = static::get((int) $request->getData('id'));
+        } elseif (!is_null($filter = ((string) $request->getData('filter')))) {
             $filter = strtolower($filter);
 
             if ($filter === 'all') {
@@ -2460,8 +2460,8 @@ class DataMapperAbstract implements DataMapperInterface
                 $result = static::get(json_decode($list, true));
             } else {
                 $limit = (int) ($request->getData('limit') ?? 1);
-                $from  = !is_null($request->getData('from')) ? new \DateTime($request->getData('from')) : null;
-                $to    = !is_null($request->getData('to')) ? new \DateTime($request->getData('to')) : null;
+                $from  = !is_null($request->getData('from')) ? new \DateTime((string) $request->getData('from')) : null;
+                $to    = !is_null($request->getData('to')) ? new \DateTime((string) $request->getData('to')) : null;
 
                 $query = static::getQuery();
                 $query->limit($limit);
diff --git a/Message/RequestAbstract.php b/Message/RequestAbstract.php
index ed16b8008..dd0a0632a 100644
--- a/Message/RequestAbstract.php
+++ b/Message/RequestAbstract.php
@@ -200,7 +200,13 @@ abstract class RequestAbstract implements MessageInterface
     }
 
     /**
-     * {@inheritdoc}
+     * Get data.
+     *
+     * @param mixed $key Data key
+     * 
+     * @return mixed
+     *
+     * @since  1.0.0
      */
     public function getData($key = null)
     {