gnu-social/actions/groupmembers.php
Meitar Moscovitz 6e2f045837 Add machine-readable pagination using HTML4.01 <link rel="next">, etc.
These extra `<link>` elements only appear on pages where pagination
makes sense. They trigger functionality in some user agents, such as
Opera's Navigation Bar for more easily navigating forward and backwards
across a paged set of notices, messages, or group lists, etc.
2009-02-09 00:02:51 +11:00

163 lines
4.8 KiB
PHP

<?php
/**
* Laconica, the distributed open-source microblogging tool
*
* List of group members
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Group
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @copyright 2008-2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
if (!defined('LACONICA')) {
exit(1);
}
require_once(INSTALLDIR.'/lib/profilelist.php');
require_once INSTALLDIR.'/lib/publicgroupnav.php';
/**
* List of group members
*
* @category Group
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
class GroupmembersAction extends Action
{
var $page = null;
function isReadOnly()
{
return true;
}
function prepare($args)
{
parent::prepare($args);
$this->page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
$nickname_arg = $this->arg('nickname');
$nickname = common_canonical_nickname($nickname_arg);
// Permanent redirect on non-canonical nickname
if ($nickname_arg != $nickname) {
$args = array('nickname' => $nickname);
if ($this->page != 1) {
$args['page'] = $this->page;
}
common_redirect(common_local_url('groupmembers', $args), 301);
return false;
}
if (!$nickname) {
$this->clientError(_('No nickname'), 404);
return false;
}
$this->group = User_group::staticGet('nickname', $nickname);
if (!$this->group) {
$this->clientError(_('No such group'), 404);
return false;
}
return true;
}
function title()
{
if ($this->page == 1) {
return sprintf(_('%s group members'),
$this->group->nickname);
} else {
return sprintf(_('%s group members, page %d'),
$this->group->nickname,
$this->page);
}
}
function handle($args)
{
parent::handle($args);
$this->showPage();
}
function showPageNotice()
{
$this->element('p', 'instructions',
_('A list of the users in this group.'));
}
function showLocalNav()
{
$nav = new GroupNav($this, $this->group);
$nav->show();
}
function showContent()
{
$offset = ($this->page-1) * PROFILES_PER_PAGE;
$limit = PROFILES_PER_PAGE + 1;
$cnt = 0;
$members = $this->group->getMembers($offset, $limit);
if ($members) {
$member_list = new ProfileList($members, null, $this);
$cnt = $member_list->show();
}
$members->free();
$this->pagination($this->page > 1, $cnt > PROFILES_PER_PAGE,
$this->page, 'groupmembers',
array('nickname' => $this->group->nickname));
}
/**
* Output document relationship links
*
* @return void
*/
function showRelationshipLinks()
{
// Machine-readable pagination
if ($this->page > 1) {
$this->element('link', array('rel' => 'next',
'href' => common_local_url('groupmembers',
array('nickname' => $this->group->nickname,
'page' => $this->page - 1)),
'title' => _('Next Group Members')));
}
$this->element('link', array('rel' => 'prev',
'href' => common_local_url('groupmembers',
array('nickname' => $this->group->nickname,
'page' => $this->page + 1)),
'title' => _('Previous Group Members')));
}
}