mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-14 23:32:45 +00:00
19aa44ecae
* Convert rooms table * Convert transactions table * Convert rooms table and factor out lots of functions * I think you'll be needing this..
92 lines
2.8 KiB
Go
92 lines
2.8 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 postgres
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
|
|
"github.com/matrix-org/dendrite/roomserver/storage/tables"
|
|
)
|
|
|
|
const transactionsSchema = `
|
|
-- The transactions table holds transaction IDs with sender's info and event ID it belongs to.
|
|
-- This table is used by roomserver to prevent reprocessing of events.
|
|
CREATE TABLE IF NOT EXISTS roomserver_transactions (
|
|
-- The transaction ID of the event.
|
|
transaction_id TEXT NOT NULL,
|
|
-- The session ID of the originating transaction.
|
|
session_id BIGINT NOT NULL,
|
|
-- User ID of the sender who authored the event
|
|
user_id TEXT NOT NULL,
|
|
-- Event ID corresponding to the transaction
|
|
-- Required to return event ID to client on a duplicate request.
|
|
event_id TEXT NOT NULL,
|
|
-- A transaction ID is unique for a user and device
|
|
-- This automatically creates an index.
|
|
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 NewPostgresTransactionsTable(db *sql.DB) (tables.Transactions, error) {
|
|
s := &transactionStatements{}
|
|
_, err := db.Exec(transactionsSchema)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return s, 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) {
|
|
_, 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
|
|
}
|