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Add database upgrade to populate album_artist for every file

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Bump schema_version to 3, even though this isn't exactly a schema upgrade.
This commit is contained in:
Julien BLACHE 2010-01-04 18:10:59 +01:00
parent 67e3739bc2
commit d273c72a4b
1 changed files with 47 additions and 2 deletions
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49
src/db.c
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@ -2800,9 +2800,9 @@ db_perthread_deinit(void)
"CREATE INDEX IF NOT EXISTS idx_playlistid ON playlistitems(playlistid, filepath);"
#define SCHEMA_VERSION 2
#define SCHEMA_VERSION 3
#define Q_SCVER \
"INSERT INTO admin (key, value) VALUES ('schema_version', '2');"
"INSERT INTO admin (key, value) VALUES ('schema_version', '3');"
struct db_init_query {
char *query;
@ -2923,6 +2923,44 @@ db_upgrade_v2(void)
return 0;
}
/* Upgrade from schema v2 to v3 */
#define U_V3_FILES \
"UPDATE files SET album_artist = COALESCE(artist, '') WHERE album_artist IS NULL;"
#define U_V3_SCVER \
"UPDATE admin SET value = '3' WHERE key = 'schema_version';"
static struct db_init_query db_upgrade_v3_queries[] =
{
{ U_V3_FILES, "upgrade table files" },
{ U_V3_SCVER, "set schema_version to 3" },
};
static int
db_upgrade_v3(void)
{
char *errmsg;
int i;
int ret;
for (i = 0; i < (sizeof(db_upgrade_v3_queries) / sizeof(db_upgrade_v3_queries[0])); i++)
{
DPRINTF(E_DBG, L_DB, "DB upgrade query: %s\n", db_upgrade_v3_queries[i].desc);
ret = sqlite3_exec(hdl, db_upgrade_v3_queries[i].query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
{
DPRINTF(E_FATAL, L_DB, "DB upgrade error: %s\n", errmsg);
sqlite3_free(errmsg);
return -1;
}
}
return 0;
}
static int
db_check_version(void)
@ -2964,6 +3002,13 @@ db_check_version(void)
{
case 1:
ret = db_upgrade_v2();
if (ret < 0)
return -1;
/* FALLTHROUGH */
case 2:
ret = db_upgrade_v3();
if (ret < 0)
return -1;
break;