X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FNotice.php;h=3a344e9ef85292b1210f25c9a232e69caf0552cd;hb=1e8d26baecad6ca1088ea7815fe2615fb520a10e;hp=538ae9c01b2d03afa1927aea4cf678009fa8b4c7;hpb=fac522f4d7cce9a35e605fac2bba0b2d23616ad0;p=quix0rs-gnu-social.git diff --git a/classes/Notice.php b/classes/Notice.php index 538ae9c01b..3a344e9ef8 100644 --- a/classes/Notice.php +++ b/classes/Notice.php @@ -1,30 +1,35 @@ . */ -if (!defined('LACONICA')) { exit(1) } +if (!defined('LACONICA')) { exit(1); } /** * Table Definition for notice */ -require_once 'DB/DataObject.php'; +require_once INSTALLDIR.'/classes/Memcached_DataObject.php'; -class Notice extends DB_DataObject +/* We keep the first three 20-notice pages, plus one for pagination check, + * in the memcached cache. */ + +define('NOTICE_CACHE_WINDOW', 61); + +class Notice extends Memcached_DataObject { ###START_AUTOCODE /* the code below is auto generated do not remove the above tag */ @@ -32,24 +37,364 @@ class Notice extends DB_DataObject 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,$v); } + function staticGet($k,$v=NULL) { return Memcached_DataObject::staticGet('Notice',$k,$v); } /* the code above is auto generated do not remove the tag below */ ###END_AUTOCODE - // XXX: if profile_id changes, this goes invalid. To be fair, that's a very edge case - static $profile; - function getProfile() { - if (!$this->profile) { - $this->profile = Profile::staticGet($this->profile_id); + return Profile::staticGet('id', $this->profile_id); + } + + function delete() { + $this->blowCaches(); + $this->blowFavesCache(); + $this->blowInboxes(); + parent::delete(); + } + + 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) { + common_log_db_error($notice, 'INSERT', __FILE__); + return _('Problem saving notice.'); + } + + # Update the URI after the notice is in the database + if (!$uri) { + $orig = clone($notice); + $notice->uri = common_notice_uri($notice); + + if (!$notice->update($orig)) { + common_log_db_error($notice, 'UPDATE', __FILE__); + return _('Problem saving notice.'); + } + } + + # XXX: do we need to change this for remote users? + + common_save_replies($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')) { + $notice->blowCaches(); + } + + $notice->addToInboxes(); + return $notice; + } + + function blowCaches() { + $this->blowSubsCache(); + $this->blowNoticeCache(); + $this->blowRepliesCache(); + $this->blowPublicCache(); + $this->blowTagCache(); + } + + function blowTagCache() { + $cache = common_memcache(); + if ($cache) { + $tag = new Notice_tag(); + $tag->notice_id = $this->id; + if ($tag->find()) { + while ($tag->fetch()) { + $cache->delete(common_cache_key('notice_tag:notice_stream:' . $tag->tag)); + } + } + $tag->free(); + unset($tag); + } + } + + function blowSubsCache() { + $cache = common_memcache(); + if ($cache) { + $user = new User(); + + $user->query('SELECT id ' . + 'FROM user JOIN subscription ON user.id = subscription.subscriber ' . + 'WHERE subscription.subscribed = ' . $this->profile_id); + + while ($user->fetch()) { + $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id)); + } + + $user->free(); + unset($user); + } + } + + function blowNoticeCache() { + if ($this->is_local) { + $cache = common_memcache(); + if ($cache) { + $cache->delete(common_cache_key('user:notices:'.$this->profile_id)); + } + } + } + + function blowRepliesCache() { + $cache = common_memcache(); + if ($cache) { + $reply = new Reply(); + $reply->notice_id = $this->id; + if ($reply->find()) { + while ($reply->fetch()) { + $cache->delete(common_cache_key('user:replies:'.$reply->profile_id)); + } + } + $reply->free(); + unset($reply); + } + } + + function blowPublicCache() { + if ($this->is_local) { + $cache = common_memcache(); + if ($cache) { + $cache->delete(common_cache_key('public')); + } + } + } + + function blowFavesCache() { + $cache = common_memcache(); + if ($cache) { + $fave = new Fave(); + $fave->notice_id = $this->id; + if ($fave->find()) { + while ($fave->fetch()) { + $cache->delete(common_cache_key('user:faves:'.$fave->user_id)); + } + } + $fave->free(); + unset($fave); + } + } + + # XXX: too many args; we need to move to named params or even a separate + # class for notice streams + + static function getStream($qry, $cachekey, $offset=0, $limit=20, $since_id=0, $before_id=0, $order=NULL) { + + if (common_config('memcached', 'enabled')) { + + # Skip the cache if this is a since_id or before_id qry + if ($since_id > 0 || $before_id > 0) { + return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order); + } else { + return Notice::getCachedStream($qry, $cachekey, $offset, $limit, $order); + } + } + + return Notice::getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order); + } + + static function getStreamDirect($qry, $offset, $limit, $since_id, $before_id, $order) { + + $needAnd = FALSE; + $needWhere = TRUE; + + if (preg_match('/\bWHERE\b/i', $qry)) { + $needWhere = FALSE; + $needAnd = TRUE; + } + + if ($since_id > 0) { + + if ($needWhere) { + $qry .= ' WHERE '; + $needWhere = FALSE; + } else { + $qry .= ' AND '; + } + + $qry .= ' notice.id > ' . $since_id; + } + + if ($before_id > 0) { + + if ($needWhere) { + $qry .= ' WHERE '; + $needWhere = FALSE; + } else { + $qry .= ' AND '; + } + + $qry .= ' notice.id < ' . $before_id; + } + + # Allow ORDER override + + if ($order) { + $qry .= $order; + } else { + $qry .= ' ORDER BY notice.created DESC, notice.id DESC '; + } + + if (common_config('db','type') == 'pgsql') { + $qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset; + } else { + $qry .= ' LIMIT ' . $offset . ', ' . $limit; } - return $this->profile; + + $notice = new Notice(); + + $notice->query($qry); + + return $notice; } + + static function getCachedStream($qry, $cachekey, $offset, $limit, $order) { + + # If outside our cache window, just go to the DB + + if ($offset + $limit > NOTICE_CACHE_WINDOW) { + return Notice::getStreamDirect($qry, $offset, $limit, NULL, NULL, $order); + } + + # Get the cache; if we can't, just go to the DB + + $cache = common_memcache(); + + if (!$cache) { + return Notice::getStreamDirect($qry, $offset, $limit, NULL, NULL, $order); + } + + # Get the notices out of the cache + + $notices = $cache->get(common_cache_key($cachekey)); + + # On a cache hit, return a DB-object-like wrapper + + if ($notices !== FALSE) { + $wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit)); + return $wrapper; + } + + # Otherwise, get the full cache window out of the DB + + $notice = Notice::getStreamDirect($qry, 0, NOTICE_CACHE_WINDOW, NULL, NULL, $order); + + # If there are no hits, just return the value + + if (!$notice) { + return $notice; + } + + # Pack results into an array + + $notices = array(); + + while ($notice->fetch()) { + $notices[] = clone($notice); + } + + # Store the array in the cache for next time + + $result = $cache->set(common_cache_key($cachekey), $notices); + + # return a wrapper of the array for use now + + $wrapper = new NoticeWrapper(array_slice($notices, $offset, $limit)); + + return $wrapper; + } + + function publicStream($offset=0, $limit=20, $since_id=0, $before_id=0) { + + $needAnd = FALSE; + $needWhere = TRUE; + + $qry = 'SELECT * FROM notice '; + + if (common_config('public', 'localonly')) { + $qry .= ' WHERE is_local = 1 '; + $needWhere = FALSE; + $needAnd = TRUE; + } + + return Notice::getStream($qry, + 'public', + $offset, $limit, $since_id, $before_id); + } + + function addToInboxes() { + + $inbox = new Notice_inbox(); + + $inbox->query('INSERT INTO notice_inbox (user_id, notice_id, created) ' . + 'SELECT user.id, ' . $this->id . ', "' . $this->created . '" ' . + 'FROM user JOIN subscription ON user.id = subscription.subscriber ' . + 'WHERE subscription.subscribed = ' . $this->profile_id); + + return; + } + + # Delete from inboxes if we're deleted. + + function blowInboxes() { + + $inbox = new Notice_inbox(); + $inbox->notice_id = $this->id; + $inbox->delete(); + + return; + } + } +