Files
easywish/backend/internal/database/helper.go

101 lines
2.1 KiB
Go

// Copyright (c) 2025 Nikolai Papin
//
// This file is part of Easywish
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
// the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package database
import (
"context"
"github.com/jackc/pgx/v5"
)
type DbHelperTransaction interface {
Commit() error
Rollback() error
}
type DbHelper struct {
CTX context.Context
Queries Queries
}
type dbHelperTransactionImpl struct {
CTX context.Context
TXlessQueries Queries
TX pgx.Tx
TXQueries Queries
}
func NewDbHelper(dbContext DbContext) DbHelper {
ctx := context.Background()
queries := New(dbContext)
return DbHelper{
CTX: ctx,
Queries: *queries,
}
}
func NewDbHelperTransaction(dbContext DbContext) (DbHelperTransaction, *dbHelperTransactionImpl, error) {
ctx := context.Background()
queries := New(dbContext)
tx, err := dbContext.BeginTx(ctx)
if err != nil {
return nil, nil, err
}
txQueries := queries.WithTx(tx)
obj := &dbHelperTransactionImpl{
CTX: ctx,
TXlessQueries: *queries,
TX: tx,
TXQueries: *txQueries,
}
return obj, obj, nil
}
// Commit implements DbHelperTransaction.
func (d *dbHelperTransactionImpl) Commit() error {
errCommit := d.TX.Commit(d.CTX)
if errCommit != nil {
errRollback := d.TX.Rollback(d.CTX)
if errRollback != nil {
return errRollback
}
return errCommit
}
return nil
}
// Rollback implements DbHelperTransaction.
func (d *dbHelperTransactionImpl) Rollback() error {
err := d.TX.Rollback(d.CTX)
if err != nil {
return err
}
return nil
}