forked from GNUsocial/gnu-social
noticesWithFriends is turning out to be one of our most expensive queries. The join is costly, and this method is hit over and over and over by desktop clients and other API users. So, I've added a first pass at caching the results. I store a "window" of notices -- equal to the first 3 pages of notices, plus one for pagination -- in the memcached cache. If with-friends notices are requests, I fetch the whole window out of the cache and grab the slice requested. If the requested notices are outside the window, we just do the query. If there's nothing in the cache, we request the window and store it, then return a slice. I had to add a NoticeWrapper class that works like DB_DataObject (well, just the fetch() part...) but just holds an array of notices instead of a DB cursor. Finally, saving a new notice blows away the caches for subscribed users. darcs-hash:20080915065616-84dde-1b1e814c2294498a10b763b779cbb62c3f96aa84.gz
139 lines
4.5 KiB
PHP
139 lines
4.5 KiB
PHP
<?php
|
|
/*
|
|
* Laconica - a distributed open-source microblogging tool
|
|
* Copyright (C) 2008, Controlez-Vous, Inc.
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
if (!defined('LACONICA')) { exit(1); }
|
|
|
|
/**
|
|
* Table Definition for notice
|
|
*/
|
|
require_once 'DB/DataObject.php';
|
|
|
|
class Notice extends DB_DataObject
|
|
{
|
|
###START_AUTOCODE
|
|
/* the code below is auto generated do not remove the above tag */
|
|
|
|
public $__table = 'notice'; // table name
|
|
public $id; // int(4) primary_key not_null
|
|
public $profile_id; // int(4) not_null
|
|
public $uri; // varchar(255) unique_key
|
|
public $content; // varchar(140)
|
|
public $rendered; // text()
|
|
public $url; // varchar(255)
|
|
public $created; // datetime() not_null
|
|
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
|
|
public $reply_to; // int(4)
|
|
public $is_local; // tinyint(1)
|
|
public $source; // varchar(32)
|
|
|
|
/* Static get */
|
|
function staticGet($k,$v=NULL) { return DB_DataObject::staticGet('Notice',$k,$v); }
|
|
|
|
/* the code above is auto generated do not remove the tag below */
|
|
###END_AUTOCODE
|
|
|
|
function getProfile() {
|
|
return Profile::staticGet($this->profile_id);
|
|
}
|
|
|
|
function saveTags() {
|
|
/* extract all #hastags */
|
|
$count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($this->content), $match);
|
|
if (!$count) {
|
|
return true;
|
|
}
|
|
|
|
/* elide characters we don't want in the tag */
|
|
$match[1] = str_replace(array('-', '_', '.'), '', $match[1]);
|
|
|
|
/* Add them to the database */
|
|
foreach(array_unique($match[1]) as $hashtag) {
|
|
$tag = DB_DataObject::factory('Notice_tag');
|
|
$tag->notice_id = $this->id;
|
|
$tag->tag = $hashtag;
|
|
$tag->created = $this->created;
|
|
$id = $tag->insert();
|
|
if (!$id) {
|
|
$last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
|
|
common_log(LOG_ERR, 'DB error inserting hashtag: ' . $last_error->message);
|
|
common_server_error(sprintf(_('DB error inserting hashtag: %s'), $last_error->message));
|
|
return;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static function saveNew($profile_id, $content, $source=NULL, $is_local=1, $reply_to=NULL, $uri=NULL) {
|
|
|
|
$notice = new Notice();
|
|
$notice->profile_id = $profile_id;
|
|
$notice->is_local = $is_local;
|
|
$notice->reply_to = $reply_to;
|
|
$notice->created = common_sql_now();
|
|
$notice->content = $content;
|
|
$notice->rendered = common_render_content($notice->content, $notice);
|
|
$notice->source = $source;
|
|
$notice->uri = $uri;
|
|
|
|
$id = $notice->insert();
|
|
|
|
if (!$id) {
|
|
return _('Problem saving notice.');
|
|
}
|
|
|
|
# Update the URI after the notice is in the database
|
|
if (!$uri) {
|
|
$orig = clone($notice);
|
|
$notice->uri = common_notice_uri($notice);
|
|
|
|
if (!$notice->update($orig)) {
|
|
return _('Problem saving notice.');
|
|
}
|
|
}
|
|
|
|
# XXX: do we need to change this for remote users?
|
|
|
|
common_save_replies($notice);
|
|
$notice->saveTags();
|
|
|
|
# Clear the cache for subscribed users, so they'll update at next request
|
|
# XXX: someone clever could prepend instead of clearing the cache
|
|
|
|
if (common_config('memcached', 'enabled')) {
|
|
$cache = new Memcache();
|
|
if ($cache->connect(common_config('memcached', 'server'), common_config('memcached', 'port'))) {
|
|
$user = new User();
|
|
|
|
$user->query('SELECT id ' .
|
|
'FROM user JOIN subscription ON user.id = subscription.subscriber' .
|
|
'WHERE subscription.subscribed = ' . $notice->profile_id);
|
|
|
|
while ($user->fetch()) {
|
|
$cache->delete(common_cache_key('user:notices_with_friends:' . $this->id));
|
|
}
|
|
|
|
$user->free();
|
|
unset($user);
|
|
}
|
|
}
|
|
|
|
return $notice;
|
|
}
|
|
}
|