chamilo / chamilo-lms

            api_not_allowed();

        }

        if (!$_GET['title']) {

            Display::addFlash(Display::return_message(get_lang("MustSelectPage"), 'error', false));

            return;

        }

        // First extract the date of last version

        $sql = 'SELECT * FROM '.$tbl_wiki.'

        $groupfilter = $this->groupfilter;

        $condition_session = $this->condition_session;

        if (!$_GET['title']) {

            Display::addFlash(Display::return_message(get_lang('MustSelectPage'), 'error', false));

            return;

        }

        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {

            Display::addFlash('<div id="wikititle">'.get_lang('DeletePageHistory').'</div>');

        $session_id = $this->session_id;

        $userId = api_get_user_id();

        if (!$_GET['title']) {

            Display::addFlash(Display::return_message(get_lang("MustSelectPage"), 'error', false));

            return;

        }

        /* First, see the property visibility that is at the last register and

        therefore we should select descending order.