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Handle database upgrade v7 -> v8

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This commit is contained in:
Julien BLACHE 2010-03-06 19:10:49 +01:00
parent 224ef48137
commit 07146e3261
1 changed files with 40 additions and 0 deletions
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40
src/db.c
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@ -3526,6 +3526,39 @@ static struct db_init_query db_upgrade_v7_queries[] =
{ U_V7_SCVER, "set schema_version to 7" }, { U_V7_SCVER, "set schema_version to 7" },
}; };
/* Upgrade from schema v7 to v8 */
#define U_V8_GROUPS \
"CREATE TABLE IF NOT EXISTS groups (" \
" id INTEGER PRIMARY KEY NOT NULL," \
" type INTEGER NOT NULL," \
" name VARCHAR(1024) NOT NULL," \
" persistentid INTEGER NOT NULL," \
"CONSTRAINT groups_type_unique_persistentid UNIQUE (type, persistentid)" \
");"
#define U_V8_TRG1 \
"CREATE TRIGGER update_groups_new_file AFTER INSERT ON files FOR EACH ROW" \
" BEGIN" \
" INSERT OR IGNORE INTO groups (type, name, persistentid) VALUES (1, NEW.album, NEW.songalbumid);" \
" END;"
#define U_V8_TRG2 \
"CREATE TRIGGER update_groups_update_file AFTER UPDATE OF songalbumid ON files FOR EACH ROW" \
" BEGIN" \
" INSERT OR IGNORE INTO groups (type, name, persistentid) VALUES (1, NEW.album, NEW.songalbumid);" \
" END;"
#define U_V8_SCVER \
"UPDATE admin SET value = '8' WHERE key = 'schema_version';"
static struct db_init_query db_upgrade_v8_queries[] =
{
{ U_V8_GROUPS, "create groups table" },
{ U_V8_TRG1, "create trigger update_groups_new_file" },
{ U_V8_TRG2, "create trigger update_groups_update_file" },
{ U_V8_SCVER, "set schema_version to 8" },
};
static int static int
db_check_version(void) db_check_version(void)
{ {
@ -3604,6 +3637,13 @@ db_check_version(void)
if (ret < 0) if (ret < 0)
return -1; return -1;
/* FALLTHROUGH */
case 7:
ret = db_generic_upgrade(db_upgrade_v8_queries, sizeof(db_upgrade_v8_queries) / sizeof(db_upgrade_v8_queries[0]));
if (ret < 0)
return -1;
break; break;
default: default: