Introduce a relative_path_cache column in the items table. This lets

us avoid doing lots of MPTT lookups to find the parent path when we're
trying to generate thumbnails, etc.  Invalidate the cache at all the
right times.  This greatly reduces our query count on album page views.

This fixes ticket #40.

1 files changed, 3 insertions, 2 deletions

diff --git a/installer/install.sql b/installer/install.sql
index 62240b50..2891df0f 100644
--- a/installer/install.sql
+++ b/installer/install.sql
@@ -142,6 +142,7 @@ CREATE TABLE {items} (
   `view_count` int(9) default '0',
   `width` int(9) default NULL,
   `rand_key` float default NULL,
+  `relative_path_cache` varchar(255) default NULL,
   `sort_column` varchar(64) default NULL,
   `sort_order` char(4) default 'ASC',
   `weight` int(9) NOT NULL default '0',
@@ -153,7 +154,7 @@ CREATE TABLE {items} (
   KEY `random` (`rand_key`)
 ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
 SET character_set_client = @saved_cs_client;
-INSERT INTO {items} VALUES (NULL,NULL,UNIX_TIMESTAMP(),'',NULL,1,1,1,NULL,NULL,NULL,0,NULL,NULL,1,2,NULL,NULL,1,'Gallery','album',UNIX_TIMESTAMP(),0,NULL,NULL,'weight','ASC',1,1,1);
+INSERT INTO {items} VALUES (NULL,NULL,UNIX_TIMESTAMP(),'',NULL,1,1,1,NULL,NULL,NULL,0,NULL,NULL,1,2,NULL,NULL,1,'Gallery','album',UNIX_TIMESTAMP(),0,NULL,NULL,NULL,'weight','ASC',1,1,1);
 DROP TABLE IF EXISTS {items_tags};
 SET @saved_cs_client     = @@character_set_client;
 SET character_set_client = utf8;
@@ -332,4 +333,4 @@ CREATE TABLE {vars} (
   UNIQUE KEY `module_name` (`module_name`,`name`)
 ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;
 SET character_set_client = @saved_cs_client;
-INSERT INTO {vars} VALUES (1,'core','active_site_theme','default'),(2,'core','active_admin_theme','admin_default'),(3,'core','page_size','9'),(4,'core','thumb_size','200'),(5,'core','resize_size','640'),(6,'core','default_locale','en_US'),(7,'core','blocks_dashboard_sidebar','a:4:{i:1712034437;a:2:{i:0;s:4:\"core\";i:1;s:11:\"block_adder\";}i:283628656;a:2:{i:0;s:4:\"core\";i:1;s:5:\"stats\";}i:1436662733;a:2:{i:0;s:4:\"core\";i:1;s:13:\"platform_info\";}i:1831514378;a:2:{i:0;s:4:\"core\";i:1;s:12:\"project_news\";}}'),(8,'core','blocks_dashboard_center','a:4:{i:186640350;a:2:{i:0;s:4:\"core\";i:1;s:7:\"welcome\";}i:1060186635;a:2:{i:0;s:4:\"core\";i:1;s:12:\"photo_stream\";}i:769529551;a:2:{i:0;s:4:\"core\";i:1;s:11:\"log_entries\";}i:1182339620;a:2:{i:0;s:7:\"comment\";i:1;s:15:\"recent_comments\";}}'),(9,'core','version','3.0 pre-beta svn'),(10,'core','choose_default_tookit','1'),(11,'comment','spam_caught','0');
+INSERT INTO {vars} VALUES (1,'core','active_site_theme','default'),(2,'core','active_admin_theme','admin_default'),(3,'core','page_size','9'),(4,'core','thumb_size','200'),(5,'core','resize_size','640'),(6,'core','default_locale','en_US'),(7,'core','blocks_dashboard_sidebar','a:4:{i:1229952929;a:2:{i:0;s:4:\"core\";i:1;s:11:\"block_adder\";}i:837192806;a:2:{i:0;s:4:\"core\";i:1;s:5:\"stats\";}i:1511984720;a:2:{i:0;s:4:\"core\";i:1;s:13:\"platform_info\";}i:784311393;a:2:{i:0;s:4:\"core\";i:1;s:12:\"project_news\";}}'),(8,'core','blocks_dashboard_center','a:4:{i:1049359538;a:2:{i:0;s:4:\"core\";i:1;s:7:\"welcome\";}i:84529933;a:2:{i:0;s:4:\"core\";i:1;s:12:\"photo_stream\";}i:1690694961;a:2:{i:0;s:4:\"core\";i:1;s:11:\"log_entries\";}i:728059697;a:2:{i:0;s:7:\"comment\";i:1;s:15:\"recent_comments\";}}'),(9,'core','version','3.0 pre-beta svn'),(10,'core','choose_default_tookit','1'),(11,'comment','spam_caught','0');