diff --git a/src/Controller/Service.php b/src/Controller/Service.php
index 7e00a06..e4d7fb9 100644
--- a/src/Controller/Service.php
+++ b/src/Controller/Service.php
@@ -55,6 +55,7 @@ class Service
      */
     public function getModel($modelName)
     {
+        /** @var BaseMapper */
         $model = new $modelName();
         $model->db = $this->db;
         return $model;
diff --git a/src/HttpRequest.php b/src/HttpRequest.php
index 7192c09..62d024e 100644
--- a/src/HttpRequest.php
+++ b/src/HttpRequest.php
@@ -85,7 +85,7 @@ class HttpRequest extends Collection
         return $this->_session;
     }
 
-    function getArray($key, $default = []) {
+    function getArray(string $key, array $default = []): array {
         $result = parent::get('data')->get($key, $default);
         if (is_array($result)) {
             return $result;
diff --git a/src/Model/BaseMapper.php b/src/Model/BaseMapper.php
index 7e55e72..37831a0 100644
--- a/src/Model/BaseMapper.php
+++ b/src/Model/BaseMapper.php
@@ -2,6 +2,9 @@
 
 namespace ctiso\Model;
 
+/**
+ * @property \ctiso\Database $db
+ */
 abstract class BaseMapper {
     function getAllAsOptions(): array {
         return [];