classes/Notice.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 /**
  23  * Table Definition for notice
  24  */
  25 require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
  26
  27 class Notice extends Memcached_DataObject
  28 {
  29     ###START_AUTOCODE
  30     /* the code below is auto generated do not remove the above tag */
  31
  32     public $__table = 'notice';                          // table name
  33     public $id;                              // int(4)  primary_key not_null
  34     public $profile_id;                      // int(4)   not_null
  35     public $uri;                             // varchar(255)  unique_key
  36     public $content;                         // varchar(140)
  37     public $rendered;                        // text()
  38     public $url;                             // varchar(255)
  39     public $created;                         // datetime()   not_null
  40     public $modified;                        // timestamp()   not_null default_CURRENT_TIMESTAMP
  41     public $reply_to;                        // int(4)
  42     public $is_local;                        // tinyint(1)
  43     public $source;                          // varchar(32)
  44
  45     /* Static get */
  46     function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('Notice',$k,$v); }
  47
  48     /* the code above is auto generated do not remove the tag below */
  49     ###END_AUTOCODE
  50
  51         function getProfile() {
  52                 return Profile::staticGet($this->profile_id);
  53         }
  54
  55         function saveTags() {
  56                 /* extract all #hastags */
  57                 $count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
  58                 if (!$count) {
  59                         return true;
  60                 }
  61
  62                 /* elide characters we don't want in the tag */
  63                 $match[1] = str_replace(array('-', '_', '.'), '', $match[1]);
  64
  65                 /* Add them to the database */
  66                 foreach(array_unique($match[1]) as $hashtag) {
  67                         $tag = DB_DataObject::factory('Notice_tag');
  68                         $tag->notice_id = $this->id;
  69                         $tag->tag = $hashtag;
  70                         $tag->created = $this->created;
  71                         $id = $tag->insert();
  72                         if (!$id) {
  73                                 $last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
  74                                 common_log(LOG_ERR, 'DB error inserting hashtag: ' . $last_error->message);
  75                                 common_server_error(sprintf(_('DB error inserting hashtag: %s'), $last_error->message));
  76                                 return;
  77                         }
  78                 }
  79                 return true;
  80         }
  81
  82         static function saveNew($profile_id, $content, $source=NULL, $is_local=1, $reply_to=NULL, $uri=NULL) {
  83
  84                 $notice = new Notice();
  85                 $notice->profile_id = $profile_id;
  86                 $notice->is_local = $is_local;
  87                 $notice->reply_to = $reply_to;
  88                 $notice->created = common_sql_now();
  89                 $notice->content = $content;
  90                 $notice->rendered = common_render_content($notice->content, $notice);
  91                 $notice->source = $source;
  92                 $notice->uri = $uri;
  93
  94                 $id = $notice->insert();
  95
  96                 if (!$id) {
  97                         return _('Problem saving notice.');
  98                 }
  99
 100                 # Update the URI after the notice is in the database
 101                 if (!$uri) {
 102                         $orig = clone($notice);
 103                         $notice->uri = common_notice_uri($notice);
 104
 105                         if (!$notice->update($orig)) {
 106                                 return _('Problem saving notice.');
 107                         }
 108                 }
 109
 110                 # XXX: do we need to change this for remote users?
 111
 112                 common_save_replies($notice);
 113                 $notice->saveTags();
 114
 115                 # Clear the cache for subscribed users, so they'll update at next request
 116                 # XXX: someone clever could prepend instead of clearing the cache
 117
 118                 if (common_config('memcached', 'enabled')) {
 119                         $notice->blowSubsCache();
 120                 }
 121
 122                 return $notice;
 123         }
 124
 125         function blowSubsCache() {
 126                 $cache = new Memcache();
 127                 if ($cache->connect(common_config('memcached', 'server'), common_config('memcached', 'port'))) {
 128                         $user = new User();
 129
 130                         $user->query('SELECT id ' .
 131                                                  'FROM user JOIN subscription ON user.id = subscription.subscriber ' .
 132                                                  'WHERE subscription.subscribed = ' . $this->profile_id);
 133
 134                         while ($user->fetch()) {
 135                                 $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
 136                         }
 137
 138                         $user->free();
 139                         unset($user);
 140                 }
 141         }
 142 }