@@ -15,8 +15,10 @@ class Class_Rucy_Component {

     }

     public function get_support_post_type() {

         $res = get_option( RC_SETTING_OPTION_KEY );

-        if( !is_array( $res ) ) {

+        if( !$res ) {

             $res = array( 'post', 'page' );

+        } else if ( !is_array( $res ) ) {

+            $res = explode( ',' , $res );

         }

         return $res;

     }

@@ -16,6 +16,7 @@ define( 'RC_TXT_DOMAIN', 'rucy' );

 define( 'RC_CRON_HOOK', 'rucy_update_reserved_content' );

 define( 'RC_SETTING_UPDATE', 'rucy_setting_update' );

 define( 'RC_SETTING_ERROR', 'rucy_setting_error' );

+define( 'RC_VERSION', '0.4.0' );

 load_plugin_textdomain( RC_TXT_DOMAIN, false, 'rucy/lang' );

 require_once RC_PLUGIN_DIR . '/inc/class-rucy-component.php';

@@ -28,6 +29,7 @@ class Rucy_Class {

     public function __construct() {

         register_activation_hook( plugin_basename(__FILE__), array( $this, 'activate_plugin' ) );

+        add_action( 'admin_init', array( $this, 'rucy_upgrade' ) );

         add_action('admin_enqueue_scripts', array( $this, 'enqueue_style_script' ));

         add_action( 'admin_menu', array( $this, 'enqueue_pointer_menu' ) );

         add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), array( $this, 'add_setting_link' ) );

@@ -114,6 +116,7 @@ class Rucy_Class {

     public function uninstall_rucy() {

         wp_clear_scheduled_hook( RC_CRON_HOOK );

         delete_option( RC_SETTING_OPTION_KEY );

+        delete_option( RC_VERSION );

         $all_posts = get_posts( 'numberposts=-1&post_status=' );

         $component = new Class_Rucy_Component();

         $post_meta_keys = $component->get_post_meta_keys();

@@ -123,5 +126,27 @@ class Rucy_Class {

             }

         }

     }

+    

+    public function rucy_upgrade() {

+        $rc_version = get_option( 'rucy_version' );

+        $rc_support_types = get_option( RC_SETTING_OPTION_KEY );

+        $is_old = false;

+        if ( $rc_version ) {

+            // compare

+            $new_version = RC_VERSION;

+            if ( $rc_version != $new_version ) {

+                $is_old = true;

+            }

+        } else {

+            // old version lessthan 0.3.0

+            $is_old = true;

+            if ( !is_array( $rc_support_types ) ) {

+                update_option( RC_SETTING_OPTION_KEY, explode( ',', $rc_support_types ) );

+            }

+        }

+        if ( $is_old ) {

+            update_option( 'rucy_version' , RC_VERSION );

+        }

+    }

 }

 new Rucy_Class();

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