Moved creating user to static method of the model

apps/advanced/common/models/User.php

@@ -27,6 +27,18 @@ class User extends ActiveRecord implements IdentityInterface
 
 	const ROLE_USER = 10;
 
+	public static function create($attributes)
+	{
+		/** @var User $user */
+		$user = new static();
+		$user->setAttributes($attributes);
+		if ($user->save()) {
+			return $user;
+		} else {
+			return null;
+		}
+	}
+
 	/**
 	 * @inheritdoc
 	 */

apps/advanced/frontend/models/forms/SignupForm.php

@@ -41,10 +41,7 @@ class SignupForm extends Model
 	public function signup()
 	{
 		if ($this->validate()) {
-			$user = User::create($this->attributes);
-			if ($user->save()) {
-				return $user;
-			}
+			return User::create($this->attributes);
 		}
 		return null;
 	}