dendrite/roomserver/storage/sqlite3/transactions_table.go
2020-01-09 16:50:11 +00:00

83 lines
2.2 KiB
Go

// 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 sqlite3
import (
"context"
"database/sql"
)
const transactionsSchema = `
CREATE TABLE IF NOT EXISTS roomserver_transactions (
transaction_id TEXT NOT NULL,
session_id INTEGER NOT NULL,
user_id TEXT NOT NULL,
event_id TEXT NOT NULL,
PRIMARY KEY (transaction_id, session_id, user_id)
);
`
const insertTransactionSQL = `
INSERT INTO roomserver_transactions (transaction_id, session_id, user_id, event_id)
VALUES ($1, $2, $3, $4)
`
const selectTransactionEventIDSQL = `
SELECT event_id FROM roomserver_transactions
WHERE transaction_id = $1 AND session_id = $2 AND user_id = $3
`
type transactionStatements struct {
insertTransactionStmt *sql.Stmt
selectTransactionEventIDStmt *sql.Stmt
}
func (s *transactionStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(transactionsSchema)
if err != nil {
return
}
return statementList{
{&s.insertTransactionStmt, insertTransactionSQL},
{&s.selectTransactionEventIDStmt, selectTransactionEventIDSQL},
}.prepare(db)
}
func (s *transactionStatements) insertTransaction(
ctx context.Context,
transactionID string,
sessionID int64,
userID string,
eventID string,
) (err error) {
_, err = s.insertTransactionStmt.ExecContext(
ctx, transactionID, sessionID, userID, eventID,
)
return
}
func (s *transactionStatements) selectTransactionEventID(
ctx context.Context,
transactionID string,
sessionID int64,
userID string,
) (eventID string, err error) {
err = s.selectTransactionEventIDStmt.QueryRowContext(
ctx, transactionID, sessionID, userID,
).Scan(&eventID)
return
}