b6ea1bc67a
* Move current work into single branch
* Initial massaging of clientapi etc (not working yet)
* Interfaces for accounts/devices databases
* Duplicate postgres package for sqlite3 (no changes made to it yet)
* Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking
* Fix accounts DB, device DB
* Update naffka dependency for SQLite
* Naffka SQLite
* Update naffka to latest master
* SQLite support for federationsender
* Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported)
* Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite)
* Implement GET endpoints for account_data in clientapi
* Nuke filtering for now...
* Revert "Implement GET endpoints for account_data in clientapi"
This reverts commit 4d80dff458.
* Implement GET endpoints for account_data in clientapi (#861)
* Implement GET endpoints for account_data in clientapi
* Fix accountDB parameter
* Remove fmt.Println
* Fix insertAccountData SQLite query
* Fix accountDB storage interfaces
* Add empty push rules into account data on account creation (#862)
* Put SaveAccountData into the right function this time
* Not sure if roomserver is better or worse now
* sqlite work
* Allow empty last sent ID for the first event
* sqlite: room creation works
* Support sending messages
* Nuke fmt.println
* Move QueryVariadic etc into common, other device fixes
* Fix some linter issues
* Fix bugs
* Fix some linting errors
* Fix errcheck lint errors
* Make naffka use postgres as fallback, fix couple of compile errors
* What on earth happened to the /rooms/{roomID}/send/{eventType} routing
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
102 lines
2.8 KiB
Go
102 lines
2.8 KiB
Go
// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package common
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import (
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"database/sql"
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"fmt"
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"github.com/lib/pq"
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)
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// A Transaction is something that can be committed or rolledback.
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type Transaction interface {
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// Commit the transaction
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Commit() error
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// Rollback the transaction.
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Rollback() error
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}
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// EndTransaction ends a transaction.
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// If the transaction succeeded then it is committed, otherwise it is rolledback.
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// You MUST check the error returned from this function to be sure that the transaction
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// was applied correctly. For example, 'database is locked' errors in sqlite will happen here.
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func EndTransaction(txn Transaction, succeeded *bool) error {
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if *succeeded {
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return txn.Commit() // nolint: errcheck
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} else {
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return txn.Rollback() // nolint: errcheck
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}
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}
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// WithTransaction runs a block of code passing in an SQL transaction
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// If the code returns an error or panics then the transactions is rolledback
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// Otherwise the transaction is committed.
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func WithTransaction(db *sql.DB, fn func(txn *sql.Tx) error) (err error) {
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txn, err := db.Begin()
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if err != nil {
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return
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}
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succeeded := false
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defer func() {
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err2 := EndTransaction(txn, &succeeded)
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if err == nil && err2 != nil { // failed to commit/rollback
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err = err2
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}
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}()
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err = fn(txn)
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if err != nil {
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return
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}
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succeeded = true
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return
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}
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// TxStmt wraps an SQL stmt inside an optional transaction.
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// If the transaction is nil then it returns the original statement that will
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// run outside of a transaction.
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// Otherwise returns a copy of the statement that will run inside the transaction.
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func TxStmt(transaction *sql.Tx, statement *sql.Stmt) *sql.Stmt {
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if transaction != nil {
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statement = transaction.Stmt(statement)
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}
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return statement
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}
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// IsUniqueConstraintViolationErr returns true if the error is a postgresql unique_violation error
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func IsUniqueConstraintViolationErr(err error) bool {
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pqErr, ok := err.(*pq.Error)
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return ok && pqErr.Code == "23505"
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}
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// Hack of the century
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func QueryVariadic(count int) string {
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return QueryVariadicOffset(count, 0)
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}
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func QueryVariadicOffset(count, offset int) string {
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str := "("
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for i := 0; i < count; i++ {
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str += fmt.Sprintf("$%d", i+offset+1)
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if i < (count - 1) {
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str += ", "
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}
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}
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str += ")"
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return str
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}
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