//appendHead add a infos generated from the record.
func appendHead(tx *bolt.Tx, rec *record.Head) {
if find(rec) {
return
}
k := rec.ToKey()
err := db.Put(tx, "recent", k, rec)
if err != nil {
log.Print(err)
}
}
//find finds records and returns index. returns -1 if not found.
func find(rec *record.Head) bool {
k := rec.ToKey()
var r int
err := db.DB.View(func(tx *bolt.Tx) error {
var err error
r, err = db.Count(tx, "recent", k)
return err
})
if err != nil {
log.Print(err)
}
return r > 0
}