diff --git a/include/class-User.php b/include/class-User.php
index eeb75b3..5dd1008 100644
--- a/include/class-User.php
+++ b/include/class-User.php
@@ -1,90 +1,107 @@
 <?php
 # WikiCAPTCHA Control Room
 # Copyright (C) 2019 Valerio Bozzolan and contributors
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Class that can wrap an User retrieved from the database
+ * Methods for a User class
  */
-class User extends Sessionuser {
-
-	/**
-	 * Constructor
-	 */
-	public function __construct() {
-		parent::__construct();
-	}
+trait UserTrait {
 
 	/**
 	 * Get the User name
 	 *
 	 * @return string
 	 */
 	public function getUserName() {
 		return $this->get( 'user_name' );
 	}
 
 	/**
 	 * Get the User ID
 	 *
 	 * @return int
 	 */
 	public function getUserID() {
 		return $this->getSessionuserID();
 	}
 
 	/**
 	 * Get the User UID
 	 *
 	 * @return string
 	 */
 	public function getUserUID() {
 		return $this->getSessionuserUID();
 	}
 
 	/**
 	 * Get the User role
 	 *
 	 * @return string
 	 */
 	public function getUserRole() {
 		return $this->getSessionuserRole();
 	}
 
 	/**
 	 * Check if the User is active
 	 *
 	 * @return boolean
 	 */
 	public function isUserActive() {
 		return $this->isSessionuserActive();
 	}
 
 	/**
 	 * Check if the user is me
 	 *
 	 * @return boolean
 	 */
 	public function isUserMe() {
 
 		// if I'm logged, compare the IDs
 		if( is_logged() ) {
 			return $this->getUserID() === get_user()->getUserID();
 		}
 
 		return false;
 	}
 
+	/**
+	 * Normalize an User class
+	 *
+	 */
+	protected function normalizeUser() {
+		$this->integers( 'user_ID' );
+		$this->booleans( 'user_active' );
+	}
+
+}
+
+/**
+ * Class that can wrap an User retrieved from the database
+ */
+class User extends Sessionuser {
+
+	use UserTrait;
+
+	/**
+	 * Constructor
+	 */
+	public function __construct() {
+		$this->normalizeUser();
+	}
 }