tbotd/vendor/src/github.com/asdine/storm/remove.go

65 lines
1.1 KiB
Go

package storm
import (
"fmt"
"github.com/boltdb/bolt"
"github.com/fatih/structs"
)
// Remove removes a structure from the associated bucket
func (n *Node) Remove(data interface{}) error {
if !structs.IsStruct(data) {
return ErrBadType
}
info, err := extract(data)
if err != nil {
return err
}
id, err := toBytes(info.ID.Value, n.s.Codec)
if err != nil {
return err
}
if n.tx != nil {
return n.remove(n.tx, info, id)
}
return n.s.Bolt.Update(func(tx *bolt.Tx) error {
return n.remove(tx, info, id)
})
}
func (n *Node) remove(tx *bolt.Tx, info *modelInfo, id []byte) error {
bucket := n.GetBucket(tx, info.Name)
if bucket == nil {
return fmt.Errorf("bucket %s doesn't exist", info.Name)
}
for fieldName, idxInfo := range info.Indexes {
idx, err := getIndex(bucket, idxInfo.Type, fieldName)
if err != nil {
return err
}
err = idx.RemoveID(id)
if err != nil {
return err
}
}
raw := bucket.Get(id)
if raw == nil {
return ErrNotFound
}
return bucket.Delete(id)
}
// Remove removes a structure from the associated bucket
func (s *DB) Remove(data interface{}) error {
return s.root.Remove(data)
}