From 45685f8a7cd5b294cf7941d904337ebdc87eda35 Mon Sep 17 00:00:00 2001
From: Vincent Riquer <vincent+gitorious@riquer.fr>
Date: Tue, 30 Apr 2013 00:52:18 +0200
Subject: [PATCH] Force update of destinations after a tag update

Also force an update of the DB schema on each run.
---
 lib/database/openDatabase |  2 +-
 share/schema.sql          | 34 +++++++++++++++++++++-------------
 2 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/lib/database/openDatabase b/lib/database/openDatabase
index 74f4745..df05d84 100644
--- a/lib/database/openDatabase
+++ b/lib/database/openDatabase
@@ -12,7 +12,6 @@ openDatabase() {
 		then
 			mkdir -p "${database%/*}"
 		fi
-		sqlite3 "$database" < $schema
 	fi
 	sqlite3 -bail "$database"	\
 		< "$tempdir/sqlite.in"	\
@@ -24,5 +23,6 @@ openDatabase() {
 		exec 5>&3
 		exec 3> >(tee -a $tempdir/debug.log >&5)
 	fi
+	cat $schema >&3
 	echo 'PRAGMA foreign_keys = ON;' >&3
 }
diff --git a/share/schema.sql b/share/schema.sql
index 9e82275..2a915e4 100644
--- a/share/schema.sql
+++ b/share/schema.sql
@@ -1,5 +1,5 @@
 BEGIN TRANSACTION;
-CREATE TABLE source_files (
+CREATE TABLE IF NOT EXISTS source_files (
 	id		INTEGER PRIMARY KEY,
 	filename	TEXT	UNIQUE NOT NULL,
 	size		INTEGER NOT NULL,
@@ -10,11 +10,11 @@ CREATE TABLE source_files (
 	FOREIGN KEY	(mime_type)	REFERENCES mime_types(id)
 		ON DELETE SET NULL
 );
-CREATE TABLE destinations (
+CREATE TABLE IF NOT EXISTS destinations (
 	id		INTEGER PRIMARY KEY,
 	name		TEXT	UNIQUE NOT NULL
 );
-CREATE TABLE destination_files (
+CREATE TABLE IF NOT EXISTS destination_files (
 	id		INTEGER PRIMARY KEY,
 	filename	TEXT,
 	old_filename	TEXT,
@@ -27,11 +27,11 @@ CREATE TABLE destination_files (
 	FOREIGN KEY	(destination_id)	REFERENCES destinations(id)
 		ON DELETE CASCADE
 );
-CREATE TABLE mime_types (
+CREATE TABLE IF NOT EXISTS mime_types (
 	id		INTEGER PRIMARY KEY,
 	mime_text	TEXT	UNIQUE NOT NULL
 );
-CREATE TABLE mime_actions (
+CREATE TABLE IF NOT EXISTS mime_actions (
 	id		INTEGER PRIMARY KEY,
 	mime_type	INTEGER,
 	destination_id	INTEGER,
@@ -40,7 +40,7 @@ CREATE TABLE mime_actions (
 	FOREIGN KEY	(destination_id)	REFERENCES destinations(id)
 		ON DELETE CASCADE
 );
-CREATE TABLE tags (
+CREATE TABLE IF NOT EXISTS tags (
 	source_file	INTEGER PRIMARY KEY,
 	genre		TEXT,
 	albumartist	TEXT,
@@ -61,13 +61,14 @@ CREATE TABLE tags (
 		ON DELETE CASCADE
 );
 
-CREATE VIEW mime_type_actions AS
+CREATE VIEW IF NOT EXISTS mime_type_actions AS
 	SELECT
 		mime_types.id,mime_types.mime_text,
 		mime_actions.destination_id,mime_actions.action
 	FROM mime_types INNER JOIN mime_actions
 		ON mime_actions.mime_type = mime_types.id;
-CREATE TRIGGER update_mime_actions INSTEAD OF UPDATE OF action ON mime_type_actions
+CREATE TRIGGER IF NOT EXISTS update_mime_actions
+	INSTEAD OF UPDATE OF action ON mime_type_actions
 BEGIN
 	UPDATE	mime_actions
 	SET	action=new.action
@@ -75,7 +76,8 @@ BEGIN
 	AND	destination_id=old.destination_id;
 END;
 
-CREATE TRIGGER create_dest_files_and_mime_actions AFTER INSERT ON destinations
+CREATE TRIGGER IF NOT EXISTS create_dest_files_and_mime_actions
+	AFTER INSERT ON destinations
 BEGIN
 	INSERT INTO mime_actions
 		(mime_type,destination_id)
@@ -87,7 +89,7 @@ BEGIN
 	FROM source_files;
 END;
 
-CREATE TRIGGER create_mime_actions AFTER INSERT ON mime_types
+CREATE TRIGGER IF NOT EXISTS create_mime_actions AFTER INSERT ON mime_types
 BEGIN
 	INSERT INTO mime_actions (mime_type,destination_id)
 	SELECT mime_types.id,destinations.id
@@ -95,18 +97,24 @@ BEGIN
 	WHERE mime_types.id=new.id;
 END;
 
-CREATE INDEX sourcefiles_by_name ON source_files (filename,id);
+CREATE INDEX IF NOT EXISTS sourcefiles_by_name ON source_files (filename,id);
 
-CREATE TRIGGER create_destinations AFTER INSERT ON source_files
+CREATE TRIGGER IF NOT EXISTS create_destinations AFTER INSERT ON source_files
 BEGIN
 	INSERT INTO destination_files (source_file_id,destination_id)
 		SELECT source_files.id,destinations.id FROM source_files
 	INNER JOIN destinations
 		WHERE source_files.id=new.id;
 END;
-CREATE TRIGGER create_tags AFTER INSERT ON source_files
+CREATE TRIGGER IF NOT EXISTS create_tags AFTER INSERT ON source_files
 BEGIN
 	INSERT INTO tags (source_file,last_change) VALUES (new.id,0);
 END;
+CREATE TRIGGER IF NOT EXISTS force_destination_update_on_tag_update
+	AFTER UPDATE ON tags
+BEGIN
+	UPDATE destination_files SET last_change=0
+	WHERE source_file_id=old.source_file;
+END;
 
 COMMIT;