actions/public.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 require_once(INSTALLDIR.'/lib/stream.php');
  23
  24 class PublicAction extends StreamAction {
  25
  26         function handle($args) {
  27                 parent::handle($args);
  28
  29                 $page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
  30
  31                 common_show_header(_t('Public timeline'),
  32                                                    array($this, 'show_header'), NULL,
  33                                                    array($this, 'show_top'));
  34
  35                 # XXX: Public sidebar here?
  36
  37                 $this->show_notices($page);
  38
  39                 common_show_footer();
  40         }
  41
  42         function show_top() {
  43                 if (common_logged_in()) {
  44                         common_notice_form();
  45                 }
  46         }
  47
  48         function show_header() {
  49                 common_element('link', array('rel' => 'alternate',
  50                                                                          'href' => common_local_url('publicrss'),
  51                                                                          'type' => 'application/rss+xml',
  52                                                                          'title' => _t('Public Stream Feed')));
  53         }
  54
  55         function show_notices($page) {
  56
  57                 $notice = DB_DataObject::factory('notice');
  58
  59                 # FIXME: bad performance
  60
  61                 $notice->whereAdd('EXISTS (SELECT user.id from user where user.id = notice.profile_id)');
  62
  63                 $notice->orderBy('created DESC');
  64
  65                 # We fetch one extra, to see if we need an "older" link
  66
  67                 $notice->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
  68
  69                 $cnt = $notice->find();
  70
  71                 if ($cnt > 0) {
  72                         common_element_start('ul', array('id' => 'notices'));
  73                         for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
  74                                 if ($notice->fetch()) {
  75                                         $this->show_notice($notice);
  76                                 } else {
  77                                         // shouldn't happen!
  78                                         break;
  79                                 }
  80                         }
  81                         common_element_end('ul');
  82                 }
  83
  84                 common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
  85                                                   $page, 'public');
  86         }
  87 }
  88