func (mi *Indexer) SchemaVersion() (version int, err os.Error) {
var client *mysql.Client
client, err = mi.getConnection()
if err != nil {
return
}
defer mi.releaseConnection(client)
err = client.Query("SELECT value FROM meta WHERE metakey='version'")
if err != nil {
return
}
res, err := client.UseResult()
if err != nil {
return
}
row := res.FetchRow()
if row == nil {
return 0, nil
}
version, err = strconv.Atoi(row[0].(string))
client.FreeResult()
return
}
func (mi *Indexer) IsAlive() (ok bool, err os.Error) {
var client *mysql.Client
client, err = mi.getConnection()
if err != nil {
return
}
defer mi.releaseConnection(client)
err = client.Query("SELECT 1 + 1")
if err != nil {
return
}
_, err = client.UseResult()
if err != nil {
return
}
client.FreeResult()
return true, nil
}