/*
This file is part of Subsonic.
Subsonic is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Subsonic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
Copyright 2009 (C) Sindre Mehus
*/
package net.sourceforge.subsonic.dao.schema;
import net.sourceforge.subsonic.Logger;
import org.springframework.jdbc.core.JdbcTemplate;
/**
* Used for creating and evolving the database schema.
* This class implements the database schema for Subsonic version 4.9.
*
* @author Sindre Mehus
*/
public class Schema49 extends Schema {
private static final Logger LOG = Logger.getLogger(Schema49.class);
@Override
public void execute(JdbcTemplate template) {
if (template.queryForInt("select count(*) from version where version = 21") == 0) {
LOG.info("Updating database schema to version 21.");
template.execute("insert into version values (21)");
}
if (!columnExists(template, "year", "album")) {
LOG.info("Database column 'album.year' not found. Creating it.");
template.execute("alter table album add year int");
LOG.info("Database column 'album.year' was added successfully.");
}
if (!columnExists(template, "genre", "album")) {
LOG.info("Database column 'album.genre' not found. Creating it.");
template.execute("alter table album add genre varchar");
LOG.info("Database column 'album.genre' was added successfully.");
}
if (!tableExists(template, "genre")) {
LOG.info("Database table 'genre' not found. Creating it.");
template.execute("create table genre (" +
"name varchar not null," +
"song_count int not null)");
LOG.info("Database table 'genre' was created successfully.");
}
}
}