function execute()
 {
     $context = $this->getContext();
     $controller = $context->getController();
     $request = $context->getRequest();
     $user = $context->getUser();
     $acs_user_info_row = $user->getAttribute('acs_user_info_row');
     // 対象となるコミュニティIDを取得
     $community_id = $request->ACSgetParameter('community_id');
     $form = $request->ACSGetParameters();
     // コミュニティ情報
     $community_row = ACSCommunity::get_community_profile_row($community_id);
     if ($form['mode'] == 'parent') {
         $parent_community_id = $form['delete_community_id'];
         $sub_community_id = $community_id;
     } elseif ($form['mode'] == 'sub') {
         $parent_community_id = $community_id;
         $sub_community_id = $form['delete_community_id'];
     }
     // 削除
     ACSCommunity::delete_community_link($parent_community_id, $sub_community_id);
     // forward
     $done_obj = new ACSDone();
     $done_obj->set_title(ACSMsg::get_msg('Community', 'DeleteCommunityLinkAction.class.php', 'M001'));
     $done_obj->set_message(ACSMsg::get_msg('Community', 'DeleteCommunityLinkAction.class.php', 'M002'));
     $done_obj->add_link(ACSMsg::get_msg('Community', 'DeleteCommunityLinkAction.class.php', 'M003'), $this->getControllerPath('Community', 'CommunityLink') . '&community_id=' . $community_row['community_id']);
     $done_obj->add_link(ACSMsg::get_tag_replace(ACSMsg::get_msg('Community', 'DeleteCommunityLinkAction.class.php', 'BACK_TO_CM'), array("{COMMUNITY_NAME}" => $community_row['community_name'])), $this->getControllerPath('Community', DEFAULT_ACTION) . '&community_id=' . $community_row['community_id']);
     $request->setAttribute('done_obj', $done_obj);
     $controller->forward('Common', 'Done');
 }