Release 2.3, Fixes issue #19.

Author: bungle

CHANGES

@@ -1,3 +1,12 @@
+Changes with lua-resty-session 2.3                               16 Oct 2015
+
+    *) Bugfix: Fixes issue #19 where regenerating session would
+       throw an error when using cookie storage.
+
+       See Also: https://github.com/bungle/lua-resty-session/issues/19
+
+       Thanks @hulu1522
+
 Changes with lua-resty-session 2.2                               17 Sep 2015
 
     *) Change: Removed all session_cipher_* deprecated settings

lib/resty/session.lua

@@ -97,8 +97,8 @@ local function regenerate(session, flush)
     local i = session.present and session.id or nil
     session.id = random(session.identifier.length)
     if flush then
-        if i then
-            session.storage.destroy(i);
+        if i and session.storage.destroy then
+            session.storage:destroy(i);
         end
         session.data = {}
     end