/
db.go
44 lines (36 loc) · 815 Bytes
/
db.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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
package with
import (
"context"
"database/sql"
)
//TxFunc is func used to perform inside transaction
type TxFunc func(tx *sql.Tx) error
//Tx (with.Tx()) encapsulates common pattern of transaction
func Tx(dbConn *sql.DB, fn TxFunc, opts ...*sql.TxOptions) error {
return TxContext(context.Background(), dbConn, fn, opts...)
}
//TxContext encapsulates common pattern of transaction
func TxContext(ctx context.Context, dbConn *sql.DB, fn TxFunc, opts ...*sql.TxOptions) (err error) {
var opt *sql.TxOptions = nil
if len(opts) > 0 {
opt = opts[0]
}
tx, err := dbConn.BeginTx(ctx, opt)
if err != nil {
return
}
defer func() {
if r := recover(); r != nil {
tx.Rollback()
panic(r)
}
if err != nil {
tx.Rollback()
return
}
err = tx.Commit()
return
}()
err = fn(tx)
return
}