mirror of
https://github.com/hoernschen/dendrite.git
synced 2024-12-27 07:28:27 +00:00
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
|
// Copyright 2017 Vector Creations Ltd
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package common
|
||
|
|
|
||
|
|
import (
|
||
|
|
"database/sql"
|
||
|
|
)
|
||
|
|
|
||
|
|
// WithTransaction runs a block of code passing in an SQL transaction
|
||
|
|
// If the code returns an error or panics then the transactions is rolledback
|
||
|
|
// Otherwise the transaction is committed.
|
||
|
|
func WithTransaction(db *sql.DB, fn func(txn *sql.Tx) error) (err error) {
|
||
|
|
txn, err := db.Begin()
|
||
|
|
if err != nil {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
defer func() {
|
||
|
|
if r := recover(); r != nil {
|
||
|
|
txn.Rollback()
|
||
|
|
panic(r)
|
||
|
|
} else if err != nil {
|
||
|
|
txn.Rollback()
|
||
|
|
} else {
|
||
|
|
err = txn.Commit()
|
||
|
|
}
|
||
|
|
}()
|
||
|
|
err = fn(txn)
|
||
|
|
return
|
||
|
|
}
|