add tag cache for user_entries (bump schema)

functions.php

@@ -1199,9 +1199,9 @@
 						$result = db_query($link,
 							"INSERT INTO ttrss_user_entries 
 								(ref_id, owner_uid, feed_id, unread, last_read, marked, 
-									published, score) 
+									published, score, tag_cache) 
 							VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
-								$last_read_qpart, $marked, $published, '$score')");
+								$last_read_qpart, $marked, $published, '$score', '')");
 
 						$result = db_query($link, 
 							"SELECT int_id FROM ttrss_user_entries WHERE
@@ -1433,6 +1433,14 @@
 									(owner_uid,tag_name,post_int_id)
 									VALUES ('$owner_uid','$tag', '$entry_int_id')");
 							}							
+
+							/* update the cache */
+
+							$tags_str = db_escape_string(join(",", $filtered_tags));
+
+							db_query($link, "UPDATE ttrss_user_entries 
+								SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
+								AND owner_uid = $owner_uid");
 						}
 
 					db_query($link, "COMMIT");
@@ -4660,10 +4668,32 @@
 		if ($memcache && $obj = $memcache->get($obj_id)) {
 			$tags = $obj;
 		} else {
-			$tmp_result = db_query($link, $query);
+			/* check cache first */
+
+			$result = db_query($link, "SELECT tag_cache FROM ttrss_user_entries
+				WHERE ref_id = '$id' AND owner_uid = " . $_SESSION["uid"]);
+
+			$tag_cache = db_fetch_result($result, 0, "tag_cache");
+
+			if ($tag_cache) {
+				$tags = explode(",", $tag_cache);
+			} else {
 
-			while ($tmp_line = db_fetch_assoc($tmp_result)) {
+				/* do it the hard way */
-				array_push($tags, $tmp_line["tag_name"]);				
+
+				$tmp_result = db_query($link, $query);
+
+				while ($tmp_line = db_fetch_assoc($tmp_result)) {
+					array_push($tags, $tmp_line["tag_name"]);				
+				}
+
+				/* update the cache */
+
+				$tags_str = db_escape_string(join(",", $tags));
+
+				db_query($link, "UPDATE ttrss_user_entries 
+					SET tag_cache = '$tags_str' WHERE ref_id = '$id'
+					AND owner_uid = " . $_SESSION["uid"]);
 			}
 
 			if ($memcache) $memcache->add($obj_id, $tags, 0, 3600);

modules/backend-rpc.php

@@ -423,8 +423,8 @@
 			$id = db_escape_string($_REQUEST["id"]);
 
 			$tags_str = db_escape_string($_REQUEST["tags_str"]);
-
 			$tags = array_unique(trim_array(split(",", $tags_str)));
+			$tags_str = db_escape_string(join(",", $tags));
 
 			db_query($link, "BEGIN");
 
@@ -458,6 +458,10 @@
 				}
 			}
 
+			db_query($link, "UPDATE ttrss_user_entries 
+				SET tag_cache = '$tags_str' WHERE ref_id = '$id'
+				AND owner_uid = " . $_SESSION["uid"]);
+
 			db_query($link, "COMMIT");
 
 			if ($memcache) {

sanity_check.php

@@ -2,7 +2,7 @@
 	require_once "functions.php";
 
 	define('EXPECTED_CONFIG_VERSION', 19);
-	define('SCHEMA_VERSION', 71);
+	define('SCHEMA_VERSION', 72);
 
 	if (!file_exists("config.php")) {
 		print "<b>Fatal Error</b>: You forgot to copy 

schema/ttrss_schema_mysql.sql

@@ -151,6 +151,7 @@ create table ttrss_user_entries (
 	owner_uid integer not null,
 	marked bool not null default 0,
 	published bool not null default 0,
+	tag_cache text not null,
 	last_read datetime,
 	score int not null default 0,
 	note longtext,
@@ -244,7 +245,7 @@ create table ttrss_tags (id integer primary key auto_increment,
 
 create table ttrss_version (schema_version int not null) TYPE=InnoDB DEFAULT CHARSET=UTF8;
 
-insert into ttrss_version values (71);
+insert into ttrss_version values (72);
 
 create table ttrss_enclosures (id integer primary key auto_increment,
 	content_url text not null,

schema/ttrss_schema_pgsql.sql

@@ -137,6 +137,7 @@ create table ttrss_user_entries (
 	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
 	marked boolean not null default false,
 	published boolean not null default false,
+	tag_cache text not null,
 	last_read timestamp,
 	score int not null default 0,
 	note text,
@@ -216,7 +217,7 @@ create index ttrss_tags_owner_uid_index on ttrss_tags(owner_uid);
 
 create table ttrss_version (schema_version int not null);
 
-insert into ttrss_version values (71);
+insert into ttrss_version values (72);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,

schema/versions/mysql/72.sql

@@ -0,0 +1,5 @@
+alter table ttrss_user_entries add column tag_cache text;
+update ttrss_user_entries set tag_cache = '';
+alter table ttrss_user_entries change tag_cache tag_cache text not null;
+
+update ttrss_version set schema_version = 72;

schema/versions/pgsql/72.sql

@@ -0,0 +1,5 @@
+alter table ttrss_user_entries add column tag_cache text;
+update ttrss_user_entries set tag_cache = '';
+alter table ttrss_user_entries alter column tag_cache set not null;
+
+update ttrss_version set schema_version = 72;