gnu-social/actions/groupmembers.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')));
    }
}