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// Copyright 2017-2018 New Vector Ltd
// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
//
// 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 shared
import (
"context"
"database/sql"
)
// StatementList is a list of SQL statements to prepare and a pointer to where to store the resulting prepared statement.
type StatementList []struct {
Statement **sql.Stmt
SQL string
}
// Prepare the SQL for each statement in the list and assign the result to the prepared statement.
func (s StatementList) Prepare(db *sql.DB) (err error) {
for _, statement := range s {
if *statement.Statement, err = db.Prepare(statement.SQL); err != nil {
return
}
}
return
}
type transaction struct {
ctx context.Context
txn *sql.Tx
}
// Commit implements types.Transaction
func (t *transaction) Commit() error {
if t.txn == nil {
// The Updater structs can operate in useTxns=false mode. The code will still call this though.
return nil
}
return t.txn.Commit()
}
// Rollback implements types.Transaction
func (t *transaction) Rollback() error {
if t.txn == nil {
// The Updater structs can operate in useTxns=false mode. The code will still call this though.
return nil
}
return t.txn.Rollback()
}
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