X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FNotice.php;h=e72892966c22760d22e9fd1fcd8fac5af6841c6f;hb=8d53a7d463e3cc21f1db6b0b8df31d3b51cbd820;hp=c9127bac49bdae7dc6b22c9b0e0fc390ecef92cc;hpb=9676315b2eb2d888d9b7333c3f95a524a3e74712;p=quix0rs-gnu-social.git

diff --git a/classes/Notice.php b/classes/Notice.php
index c9127bac49..e72892966c 100644
--- a/classes/Notice.php
+++ b/classes/Notice.php
@@ -22,9 +22,14 @@ 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 */
@@ -43,7 +48,7 @@ class Notice extends DB_DataObject
     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
@@ -52,12 +57,21 @@ class Notice extends DB_DataObject
 		return Profile::staticGet($this->profile_id);
 	}
 
+	function delete() {
+		$this->blowCaches();
+		$this->blowFavesCache();
+		parent::delete();
+	}
+	
 	function saveTags() {
 		/* extract all #hastags */
-		$count = preg_match_all('/(?:^|\s)#([a-z0-9]{1,64})/', strtolower($this->content), $match);
+		$count = preg_match_all('/(?:^|\s)#([A-Za-z0-9_\-\.]{1,64})/', strtolower($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) {
@@ -68,42 +82,226 @@ class Notice extends DB_DataObject
 			$id = $tag->insert();
 			if (!$id) {
 				$last_error = PEAR::getStaticProperty('DB_DataObject','lastError');
-				common_log(LOG_ERROR, 'DB error inserting hashtag: ' . $last_error->message);
+				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, $is_local=1) {
+
+	static function saveNew($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->created = DB_DataObject_Cast::dateTime();
+		$notice->reply_to = $reply_to;
+		$notice->created = common_sql_now();
 		$notice->content = $content;
 		$notice->rendered = common_render_content($notice->content, $notice);
-		if ($source) {
-			$notice->source = $source;
-		}
+		$notice->source = $source;
+		$notice->uri = $uri;
 		
 		$id = $notice->insert();
 
 		if (!$id) {
+			common_log_db_error($notice, 'INSERT', __FILE__);
 			return _('Problem saving notice.');
 		}
 
-		$orig = clone($notice);
-		$notice->uri = common_notice_uri($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.');
+			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();
+		}
+		
+		return $notice;
+	}
+
+	function blowCaches() {
+		$this->blowSubsCache();
+		$this->blowNoticeCache();
+		$this->blowRepliesCache();
+		$this->blowPublicCache();
+	}
+	
+	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);
+		}
+	}
+	
+	static function getStream($qry, $cachekey, $offset=0, $limit=20) {
+		
+		if (common_config('memcached', 'enabled')) {
+			return Notice::getCachedStream($qry, $cachekey, $offset, $limit);
+		} else {
+			return Notice::getStreamDirect($qry, $offset, $limit);
+		}
+	
+	}
+
+	static function getStreamDirect($qry, $offset, $limit) {
+		
+		$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;
+		}
+
+		$notice = new Notice();
+
+		$notice->query($qry);
 		
 		return $notice;
 	}
+	
+	static function getCachedStream($qry, $cachekey, $offset, $limit) {
+
+		# If outside our cache window, just go to the DB
+		
+		if ($offset + $limit > NOTICE_CACHE_WINDOW) {
+			return Notice::getStreamDirect($qry, $offset, $limit);
+		}
+
+		# Get the cache; if we can't, just go to the DB
+		
+		$cache = common_memcache();
+
+		
+		if (!$cache) {
+			return Notice::getStreamDirect($qry, $offset, $limit);
+		}
+
+		# 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);
+		
+		# 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) {
+		
+		$qry = 'SELECT * FROM notice ';
+
+		if (common_config('public', 'localonly')) {
+			$qry .= ' WHERE is_local = 1 ';
+		}
+
+		return Notice::getStream($qry,
+								 'public',
+								 $offset, $limit);
+	}
 }