@@ -13,7 +13,7 @@ define('RC_PLUGIN_URL',  plugin_dir_url(__FILE__));

 define('RC_SETTING_OPTION_KEY', 'rucy_post_type');

 define('RC_TXT_DOMAIN', 'rucy');

 define('RC_POSTTYPE_DEFAULT','post,page');

-define('RC_CRON_FOOK', 'rucy_update_reserved_content');

+define('RC_CRON_HOOK', 'rucy_update_reserved_content');

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

 add_action('admin_enqueue_scripts','rc_load_jscss');

@@ -168,11 +168,11 @@ function savePostmeta($post_id)

             $reservDate = strtotime(get_gmt_from_date($_POST[$rcKeys['date']]) . " GMT");

             if(in_array($_POST['post_type'], $acceptPostType) || $_POST['post_type'] != 'revision')

             {

-                wp_schedule_single_event($reservDate, RC_CRON_FOOK, array($post_id));

+                wp_schedule_single_event($reservDate, RC_CRON_HOOK, array($post_id));

             }

         } else if($_POST[$rcKeys['accept']] == "0") {

             // delete schedule

-            wp_clear_scheduled_hook(RC_CRON_FOOK, array($post_id));

+            wp_clear_scheduled_hook(RC_CRON_HOOK, array($post_id));

         }

     }

 }

@@ -214,7 +214,7 @@ function updateReservedContent($post_id)

         );

        wp_update_post($updates,true);

     }

-    wp_clear_scheduled_hook(RC_CRON_FOOK, array($post_id));

+    wp_clear_scheduled_hook(RC_CRON_HOOK, array($post_id));

     $dels = getRcMetas();

     foreach ($dels as $key => $del)

     {

@@ -258,9 +258,10 @@ function addRcSetting()

     $post = $_POST;

     $isCheckedPost = "";

     $isCheckedPage = "";

-    $arrCustomPostTypes = "";

     $customPostTypes = "";

     $errorClass = "form-invalid";

+    $basicPostTypes = array('page','post');

+    $invalidPostTypes = array('attachment','revision');

     $message = array();

     $error = 0;

     if(isset($post['page_options']))

@@ -284,12 +285,15 @@ function addRcSetting()

         }

         if(isset($post['rc_custom_post']) && $post['rc_custom_post'] != "") {

             $customCheck = explode(',', $post['rc_custom_post']);

-            foreach ($customCheck as $check){

-                if(preg_match('/^page$/', $check) || preg_match('/^post$/', $check))

+            foreach ($customCheck as $check)

+            {

+                if(in_array($check, $basicPostTypes))

                 {

                     $message['custom_post'] = __('Do not input "post" or "page". ', RC_TXT_DOMAIN);

                 } else if(!preg_match('/[a-zA-Z0-9_-]/', $check)) {

                     $message['custom_post'] = __("Please input alphabet or numeric. And do not input sequencial commas.", RC_TXT_DOMAIN);

+                } else if(in_array($check, $invalidPostTypes)){

+                    $message['custom_post'] = __('Do not input "attachment" or "revision". ',RC_TXT_DOMAIN);

                 }

             }

             $res .= "," . $post['rc_custom_post'];

@@ -400,7 +404,7 @@ if(function_exists('register_uninstall_hook'))

 function goodbyeRucy()

 {

-    wp_clear_scheduled_hook(RC_CRON_FOOK);

+    wp_clear_scheduled_hook(RC_CRON_HOOK);

     delete_option(RC_SETTING_OPTION_KEY);

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

     $meta_keys = getRcMetas();