//Remove Remove all files and dirs of cache.
func (c *Cache) Remove() {
err := db.DB.Update(func(tx *bolt.Tx) error {
r, err := record.GetFromDBs(tx, c.Datfile)
if err != nil {
return err
}
for _, rr := range r {
rr.Del(tx)
}
return db.Del(tx, "thread", []byte(c.Datfile))
})
if err != nil {
log.Println(err)
}
}
//Prune removes Sugtaglists which are not listed in recs,
//or truncates its size to tagsize if listed.
func Prune(recs []*record.Head) {
tmp := keys()
for _, r := range recs {
if l := util.FindString(tmp, r.Datfile); l != -1 {
tmp = append(tmp[:l], tmp[l+1:]...)
}
}
err := db.DB.Update(func(tx *bolt.Tx) error {
for _, datfile := range tmp {
err := db.Del(tx, "sugtag", []byte(datfile))
if err != nil {
return err
}
}
return nil
})
if err != nil {
log.Println(err)
}
}
//Set remove all tags and saves tag strings.
func Set(thread string, tag []string) {
err := db.DB.Update(func(tx *bolt.Tx) error {
ts, err := db.GetMap(tx, "usertag", []byte(thread))
if err != nil {
log.Println(err)
}
for t := range ts {
err = db.DelMap(tx, "usertagTag", []byte(t), thread)
if err != nil {
return err
}
}
if err := db.Del(tx, "usertag", []byte(thread)); err != nil {
log.Println(err)
}
return AddTX(tx, thread, tag)
})
if err != nil {
log.Print(err)
}
}
//RemoveFromAllTable removes node n from all tables and return true if exists.
//or returns false if not exists.
func RemoveFromAllTable(n *node.Node) bool {
err := db.DB.Update(func(tx *bolt.Tx) error {
threads, err := db.GetMap(tx, "lookupA", []byte(n.Nodestr))
if err != nil {
return err
}
err = db.Del(tx, "lookupA", []byte(n.Nodestr))
if err != nil {
return err
}
for t := range threads {
err := db.DelMap(tx, "lookupT", []byte(t), n.Nodestr)
if err != nil {
return err
}
}
return nil
})
if err != nil {
log.Println(err)
return false
}
return true
}
//Del deletes data from db.
func (d *DB) Del(tx *bolt.Tx) {
if err := db.Del(tx, "record", d.Head.ToKey()); err != nil {
log.Println(err)
}
}