sphinx integration for notices and profiles

darcs-hash:20081123185136-099f7-ca600dbdfff09762802e1cc58cf8777c45a24402.gz

actions/noticesearch.php

@@ -20,7 +20,6 @@
 if (!defined('LACONICA')) { exit(1); }
 
 require_once(INSTALLDIR.'/lib/searchaction.php');
-define('NOTICES_PER_PAGE', 20);
 
 # XXX common parent for people and content search?
 
@@ -42,13 +41,17 @@ class NoticesearchAction extends SearchAction {
 		$q = strtolower($q);
 
         $search_engine = $notice->getSearchEngine('identica_notices');
-        $search_engine->query($q);
 
+        $search_engine->set_sort_mode('chron');
 		# Ask for an extra to see if there's more.
 		$search_engine->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
 
+        if (false === $search_engine->query($q)) {
+            $cnt = 0;
+        }
+        else {
 	    	$cnt = $notice->find();
-
+        }
 		if ($cnt > 0) {
 			$terms = preg_split('/[\s,]+/', $q);
 			common_element_start('ul', array('id' => 'notices'));

actions/noticesearchrss.php

@@ -39,19 +39,12 @@ class NoticesearchrssAction extends Rss10Action {
 		# lcase it for comparison
 		$q = strtolower($q);
 
-		if(common_config('db','type')=='mysql') {
+        $search_engine = $notice->getSearchEngine('identica_notices');
-			$notice->whereAdd('MATCH(content) against (\''.addslashes($q).'\')');
+        $search_engine->set_sort_mode('chron');
-		} else {
-			$notice->whereAdd('to_tsvector(\'english\',content) @@ plainto_tsquery(\''.addslashes($q).'\')');
-		}
-		$notice->orderBy('created DESC, notice.id DESC');
-
-		# Ask for an extra to see if there's more.
-
-		if ($limit != 0) {
-			$notice->limit(0, $limit);
-		}
 
+		if (!$limit) $limit = 20;
+        $search_engine->limit(0, $limit, true);
+        $search_engine->query($q);
 		$notice->find();
 
 		while ($notice->fetch()) {

actions/peoplesearch.php

@@ -20,7 +20,7 @@
 if (!defined('LACONICA')) { exit(1); }
 
 require_once(INSTALLDIR.'/lib/searchaction.php');
-require_once(INSTALLDIR.'/lib/profilelist.php');
+define('PROFILES_PER_PAGE', 10);
 
 class PeoplesearchAction extends SearchAction {
 
@@ -42,13 +42,15 @@ class PeoplesearchAction extends SearchAction {
 
         $search_engine = $profile->getSearchEngine('identica_people');
 
-        $search_engine->query($q);
+        $search_engine->set_sort_mode('chron');
-
 		# Ask for an extra to see if there's more.
         $search_engine->limit((($page-1)*PROFILES_PER_PAGE), PROFILES_PER_PAGE + 1);
-
+        if (false === $search_engine->query($q)) {
+            $cnt = 0;
+        }
+        else {
 		    $cnt = $profile->find();
-
+        }
 		if ($cnt > 0) {
 			$terms = preg_split('/[\s,]+/', $q);
 			$results = new PeopleSearchResults($profile, $terms);

classes/SearchEngines.php

@@ -20,54 +20,85 @@
 if (!defined('LACONICA')) { exit(1); }
 
 class SearchEngine {
-    protected $profile;
+    protected $target;
     protected $table;
 
-    function __construct($profile, $table) {
+    function __construct($target, $table) {
-        $this->profile = $profile;
+        $this->target = $target;
         $this->table = $table;
     }
 
     function query($q) {
     }
 
-    function limit($offset, $count) {
+    function limit($offset, $count, $rss = false) {
-        return $this->profile->limit($offset, $count);
+        return $this->target->limit($offset, $count);
+    }
+
+    function set_sort_mode($mode) {
+        if ('chron' === $mode)
+            return $this->target->orderBy('created desc');
     }
 }
 
 class SphinxSearch extends SearchEngine {
     private $sphinx;
 
-    function __construct($profile, $table) {
+    function __construct($target, $table) {
-        parent::__construct($profile, $table);
+        parent::__construct($target, $table);
         $this->sphinx = new SphinxClient;
         $this->sphinx->setServer(common_config('sphinx', 'server'), common_config('sphinx', 'port'));
     }
 
-    function limit($offset, $count) {
+    function limit($offset, $count, $rss = false) {
-        $this->sphinx->setLimits($offset, $count);
+        //FIXME without LARGEST_POSSIBLE, the most recent results aren't returned
-        $this->profile->limit($offset, $count);
+        //      this probably has a large impact on performance
+        $LARGEST_POSSIBLE = 1e6; 
+
+        if ($rss) {
+            $this->sphinx->setLimits($offset, $count, $count, $LARGEST_POSSIBLE);
+        }
+        else {
+            // return at most 50 pages of results
+            $this->sphinx->setLimits($offset, $count, 50 * ($count - 1), $LARGEST_POSSIBLE);
+        }
+
+        return $this->target->limit(0, $count);
     }
 
     function query($q) {
         $result = $this->sphinx->query($q, $this->table);
         if (!isset($result['matches'])) return false;
         $id_set = join(', ', array_keys($result['matches']));
-        return $this->profile->whereAdd("id in ($id_set)");
+        $this->target->whereAdd("id in ($id_set)");
+        return true;
+     }
+
+    function set_sort_mode($mode) {
+        if ('chron' === $mode) {
+            $this->sphinx->SetSortMode(SPH_SORT_ATTR_DESC, 'created_ts');
+            return $this->target->orderBy('created desc');
+        }
     }
 }
 
 class MySQLSearch extends SearchEngine {
     function query($q) {
-        return $this->profile->whereAdd('MATCH(nickname, fullname, location, bio, homepage) ' .
+        if ('identica_people' === $this->table)
+            return $this->target->whereAdd('MATCH(nickname, fullname, location, bio, homepage) ' .
+						   'against (\''.addslashes($q).'\')');
+        if ('identica_notices' === $this->table)
+            return $this->target->whereAdd('MATCH(content) ' .
 						   'against (\''.addslashes($q).'\')');
     }
 }
 
 class PGSearch extends SearchEngine {
     function query($q) {
-        $this->profile->whereAdd('textsearch @@ plainto_tsquery(\''.addslashes($q).'\')');
+        if ('identica_people' === $this->table)
+            return $this->target->whereAdd('textsearch @@ plainto_tsquery(\''.addslashes($q).'\')');
+        if ('identica_notices' === $this->table)
+            return $this->target->whereAdd('to_tsvector(\'english\', content) @@ plainto_tsquery(\''.addslashes($q).'\')');
     }
 }
 

lib/common.php

@@ -27,6 +27,7 @@ define('AVATAR_MINI_SIZE', 24);
 define('MAX_AVATAR_SIZE', 256 * 1024);
 
 define('NOTICES_PER_PAGE', 20);
+define('PROFILES_PER_PAGE', 10);
 
 define('FOREIGN_NOTICE_SEND', 1);
 define('FOREIGN_NOTICE_RECV', 2);