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Introduce generic database upgrade function

This commit is contained in:
Julien BLACHE 2010-01-05 19:18:30 +01:00
parent db0bff61c7
commit 26d603aa61
1 changed files with 27 additions and 50 deletions
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77
src/db.c
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@ -2876,6 +2876,31 @@ db_create_tables(void)
return 0;
}
static int
db_generic_upgrade(struct db_init_query *queries, int nqueries)
{
char *errmsg;
int i;
int ret;
for (i = 0; i < nqueries; i++, queries++)
{
DPRINTF(E_DBG, L_DB, "DB upgrade query: %s\n", queries->desc);
ret = sqlite3_exec(hdl, queries->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;
}
/* Upgrade from schema v1 to v2 */
#define U_V2_FILES \
@ -2899,30 +2924,6 @@ static struct db_init_query db_upgrade_v2_queries[] =
{ U_V2_SCVER, "set schema_version to 2" },
};
static int
db_upgrade_v2(void)
{
char *errmsg;
int i;
int ret;
for (i = 0; i < (sizeof(db_upgrade_v2_queries) / sizeof(db_upgrade_v2_queries[0])); i++)
{
DPRINTF(E_DBG, L_DB, "DB upgrade query: %s\n", db_upgrade_v2_queries[i].desc);
ret = sqlite3_exec(hdl, db_upgrade_v2_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;
}
/* Upgrade from schema v2 to v3 */
#define U_V3_FILES \
@ -2937,30 +2938,6 @@ static struct db_init_query db_upgrade_v3_queries[] =
{ 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)
@ -3001,14 +2978,14 @@ db_check_version(void)
switch (cur_ver)
{
case 1:
ret = db_upgrade_v2();
ret = db_generic_upgrade(db_upgrade_v2_queries, sizeof(db_upgrade_v2_queries) / sizeof(db_upgrade_v2_queries[0]));
if (ret < 0)
return -1;
/* FALLTHROUGH */
case 2:
ret = db_upgrade_v3();
ret = db_generic_upgrade(db_upgrade_v3_queries, sizeof(db_upgrade_v3_queries) / sizeof(db_upgrade_v3_queries[0]));
if (ret < 0)
return -1;
break;