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dex/db/health.go

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523 B
Go
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2015-08-18 05:57:27 +05:30
package db
import (
"errors"
"fmt"
"github.com/coopernurse/gorp"
)
func NewHealthChecker(dbm *gorp.DbMap) *healthChecker {
return &healthChecker{dbMap: dbm}
}
type healthChecker struct {
dbMap *gorp.DbMap
}
func (hc *healthChecker) Healthy() (err error) {
if err = hc.dbMap.Db.Ping(); err != nil {
err = fmt.Errorf("database error: %v", err)
return
}
num, err := hc.dbMap.SelectInt("SELECT 1")
if err != nil {
return
}
if num != 1 {
err = errors.New("unable to connect to database")
}
return
}