api-login change creds

common/models/User.php

@@ -120,6 +120,17 @@ class User extends ActiveRecord implements IdentityInterface, UserRbacInterface
         return static::findOne(['username' => $username, 'status' => self::STATUS_ACTIVE]);
     }
 
+    /**
+     * Finds user by email
+     *
+     * @param string $email
+     * @return static|null
+     */
+    public static function findByEmail($email)
+    {
+        return static::findOne(['username' => $email, 'status' => self::STATUS_ACTIVE]);
+    }
+
     /**
      * Finds user by password reset token
      *