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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 sqlite3
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/shared"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
)
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 {
db *sql.DB
writer *sqlutil.TransactionWriter
insertTransactionStmt *sql.Stmt
selectTransactionEventIDStmt *sql.Stmt
}
func NewSqliteTransactionsTable(db *sql.DB, writer *sqlutil.TransactionWriter) (tables.Transactions, error) {
s := &transactionStatements{
db: db,
writer: writer,
}
_, err := db.Exec(transactionsSchema)
if err != nil {
return nil, err
}
return s, shared.StatementList{
{&s.insertTransactionStmt, insertTransactionSQL},
{&s.selectTransactionEventIDStmt, selectTransactionEventIDSQL},
}.Prepare(db)
}
func (s *transactionStatements) InsertTransaction(
ctx context.Context, txn *sql.Tx,
transactionID string,
sessionID int64,
userID string,
eventID string,
) (err error) {
return s.writer.Do(s.db, txn, func(txn *sql.Tx) error {
stmt := sqlutil.TxStmt(txn, s.insertTransactionStmt)
_, err := stmt.ExecContext(
ctx, transactionID, sessionID, userID, eventID,
)
return err
})
}
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
}
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