/
db.go
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/
db.go
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/*GRP-GNU-AGPL******************************************************************
File: db.go
Copyright (C) 2021 Team Georepublic <info@georepublic.de>
Developer(s):
Copyright (C) 2021 Ashish Kumar <ashishkr23438@gmail.com>
-----
This file is part of pg_scheduleserv.
pg_scheduleserv is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
pg_scheduleserv 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with pg_scheduleserv. If not, see <https://www.gnu.org/licenses/>.
******************************************************************GRP-GNU-AGPL*/
package database
import (
"context"
"github.com/jackc/pgconn"
"github.com/jackc/pgx/v4"
)
type DBTX interface {
BeginTx(context.Context, pgx.TxOptions) (pgx.Tx, error)
Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
Query(context.Context, string, ...interface{}) (pgx.Rows, error)
QueryRow(context.Context, string, ...interface{}) pgx.Row
}
func New(db DBTX) *Queries {
return &Queries{db: db}
}
type Queries struct {
db DBTX
}
func (q *Queries) execCreateTx(ctx context.Context, fn func(*Queries) (int64, error)) (int64, error) {
tx, err := q.db.BeginTx(ctx, pgx.TxOptions{})
if err != nil {
return 0, err
}
defer func() {
err = tx.Rollback(ctx)
}()
id, err := fn(q)
if err != nil {
return 0, err
}
return id, tx.Commit(ctx)
}
func (q *Queries) execUpdateTx(ctx context.Context, fn func(*Queries) error) error {
tx, err := q.db.BeginTx(ctx, pgx.TxOptions{})
if err != nil {
return err
}
defer func() {
err = tx.Rollback(ctx)
}()
err = fn(q)
if err != nil {
return err
}
return tx.Commit(ctx)
}