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Handle database schema upgrade from v3 to v4

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This commit is contained in:
Julien BLACHE 2010-01-21 17:54:50 +01:00
parent 3fef4334bb
commit 67b3a8c2da
1 changed files with 39 additions and 0 deletions
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39
src/db.c
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@ -3190,6 +3190,38 @@ static struct db_init_query db_upgrade_v3_queries[] =
{ U_V3_SCVER, "set schema_version to 3" },
};
/* Upgrade from schema v3 to v4 */
#define U_V4_PLAYLISTS \
"ALTER TABLE playlists ADD COLUMN special_id INTEGER NOT NULL DEFAULT 0;"
#define U_V4_PL1 \
"UPDATE playlists SET query = 'disabled = 0' WHERE id = 1;"
#define U_V4_PL2 \
"INSERT INTO playlists (title, type, query, db_timestamp, path, idx, special_id)" \
" VALUES('Music', 1, 'media_kind = 1', 0, '', 0, 6);"
#define U_V4_PL3 \
"INSERT INTO playlists (title, type, query, db_timestamp, path, idx, special_id)" \
" VALUES('Movies', 1, 'media_kind = 32', 0, '', 0, 4);"
#define U_V4_PL4 \
"INSERT INTO playlists (title, type, query, db_timestamp, path, idx, special_id)" \
" VALUES('TV Shows', 1, 'media_kind = 64', 0, '', 0, 5);"
#define U_V4_SCVER \
"UPDATE admin SET value = '4' WHERE key = 'schema_version';"
static struct db_init_query db_upgrade_v4_queries[] =
{
{ U_V4_PLAYLISTS, "upgrade table playlists" },
{ U_V4_PL1, "update playlist 1" },
{ U_V4_PL2, "add smart playlist 'Music'" },
{ U_V4_PL3, "add smart playlist 'Movies'" },
{ U_V4_PL4, "add smart playlist 'TV Shows'" },
{ U_V4_SCVER, "set schema_version to 4" },
};
static int
db_check_version(void)
@ -3238,6 +3270,13 @@ db_check_version(void)
case 2:
ret = db_generic_upgrade(db_upgrade_v3_queries, sizeof(db_upgrade_v3_queries) / sizeof(db_upgrade_v3_queries[0]));
if (ret < 0)
return -1;
/* FALLTHROUGH */
case 3:
ret = db_generic_upgrade(db_upgrade_v4_queries, sizeof(db_upgrade_v4_queries) / sizeof(db_upgrade_v4_queries[0]));
if (ret < 0)
return -1;
break;