-
Notifications
You must be signed in to change notification settings - Fork 0
/
delete.go
28 lines (24 loc) · 836 Bytes
/
delete.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
package cus
import (
"fmt"
"github.com/gocql/gocql"
)
const selectCheckumFromIDCQL = `SELECT checksum FROM cus_data WHERE obj_id = ?`
const deleteDataCQL = `DELETE FROM cus_data WHERE obj_id = ?`
const deleteChecksumCQL = `DELETE FROM cus_checksum WHERE checksum = ?`
func (s *CassandraUniqueStore) Delete(id string) (err error) {
var checksum string
if err := s.session.Query(selectCheckumFromIDCQL, id).Scan(&checksum); err != nil {
if err == gocql.ErrNotFound {
return ErrNotFound
}
return fmt.Errorf("failed to fetch data : %v", err)
}
if err := s.session.Query(deleteDataCQL, id).Exec(); err != nil {
return fmt.Errorf("failed to delete data : %v", err)
}
if err := s.session.Query(deleteChecksumCQL, checksum).Exec(); err != nil {
return fmt.Errorf("failed to delete checksum : %v", err)
}
return nil
}