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// Copyright 2019 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package core
import (
"context"
"database/sql"
"xorm.io/xorm/contexts"
)
var (
_ QueryExecuter = &Tx{}
)
// Tx represents a transaction
type Tx struct {
*sql.Tx
db *DB
ctx context.Context
}
// BeginTx begin a transaction with option
func (db *DB) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
hookCtx := contexts.NewContextHook(ctx, "BEGIN TRANSACTION", nil)
ctx, err := db.beforeProcess(hookCtx)
if err != nil {
return nil, err
}
tx, err := db.DB.BeginTx(ctx, opts)
hookCtx.End(ctx, nil, err)
if err := db.afterProcess(hookCtx); err != nil {
return nil, err
}
return &Tx{tx, db, ctx}, nil
}
// Begin begins a transaction
func (db *DB) Begin() (*Tx, error) {
return db.BeginTx(context.Background(), nil)
}
// Commit submit the transaction
func (tx *Tx) Commit() error {
hookCtx := contexts.NewContextHook(tx.ctx, "COMMIT", nil)
ctx, err := tx.db.beforeProcess(hookCtx)
if err != nil {
return err
}
err = tx.Tx.Commit()
hookCtx.End(ctx, nil, err)
return tx.db.afterProcess(hookCtx)
}
// Rollback rollback the transaction
func (tx *Tx) Rollback() error {
hookCtx := contexts.NewContextHook(tx.ctx, "ROLLBACK", nil)
ctx, err := tx.db.beforeProcess(hookCtx)
if err != nil {
return err
}
err = tx.Tx.Rollback()
hookCtx.End(ctx, nil, err)
return tx.db.afterProcess(hookCtx)
}
// PrepareContext prepare the query
func (tx *Tx) PrepareContext(ctx context.Context, query string) (*Stmt, error) {
names := make(map[string]int)
var i int
query = re.ReplaceAllStringFunc(query, func(src string) string {
names[src[1:]] = i
i++
return "?"
})
hookCtx := contexts.NewContextHook(ctx, "PREPARE", nil)
ctx, err := tx.db.beforeProcess(hookCtx)
if err != nil {
return nil, err
}
stmt, err := tx.Tx.PrepareContext(ctx, query)
hookCtx.End(ctx, nil, err)
if err := tx.db.afterProcess(hookCtx); err != nil {
return nil, err
}
return &Stmt{stmt, tx.db, names, query}, nil
}
// Prepare prepare the query
func (tx *Tx) Prepare(query string) (*Stmt, error) {
return tx.PrepareContext(context.Background(), query)
}
// StmtContext creates Stmt with context
func (tx *Tx) StmtContext(ctx context.Context, stmt *Stmt) *Stmt {
stmt.Stmt = tx.Tx.StmtContext(ctx, stmt.Stmt)
return stmt
}
// Stmt creates Stmt
func (tx *Tx) Stmt(stmt *Stmt) *Stmt {
return tx.StmtContext(context.Background(), stmt)
}
// ExecMapContext executes query with args in a map
func (tx *Tx) ExecMapContext(ctx context.Context, query string, mp interface{}) (sql.Result, error) {
query, args, err := MapToSlice(query, mp)
if err != nil {
return nil, err
}
return tx.ExecContext(ctx, query, args...)
}
// ExecMap executes query with args in a map
func (tx *Tx) ExecMap(query string, mp interface{}) (sql.Result, error) {
return tx.ExecMapContext(context.Background(), query, mp)
}
// ExecStructContext executes query with args in a struct
func (tx *Tx) ExecStructContext(ctx context.Context, query string, st interface{}) (sql.Result, error) {
query, args, err := StructToSlice(query, st)
if err != nil {
return nil, err
}
return tx.ExecContext(ctx, query, args...)
}
// ExecContext executes a query with args
func (tx *Tx) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error) {
hookCtx := contexts.NewContextHook(ctx, query, args)
ctx, err := tx.db.beforeProcess(hookCtx)
if err != nil {
return nil, err
}
res, err := tx.Tx.ExecContext(ctx, query, args...)
hookCtx.End(ctx, res, err)
if err := tx.db.afterProcess(hookCtx); err != nil {
return nil, err
}
return res, err
}
// ExecStruct executes query with args in a struct
func (tx *Tx) ExecStruct(query string, st interface{}) (sql.Result, error) {
return tx.ExecStructContext(context.Background(), query, st)
}
// QueryContext query with args
func (tx *Tx) QueryContext(ctx context.Context, query string, args ...interface{}) (*Rows, error) {
hookCtx := contexts.NewContextHook(ctx, query, args)
ctx, err := tx.db.beforeProcess(hookCtx)
if err != nil {
return nil, err
}
rows, err := tx.Tx.QueryContext(ctx, query, args...)
hookCtx.End(ctx, nil, err)
if err := tx.db.afterProcess(hookCtx); err != nil {
if rows != nil {
rows.Close()
}
return nil, err
}
return &Rows{rows, tx.db}, nil
}
// Query query with args
func (tx *Tx) Query(query string, args ...interface{}) (*Rows, error) {
return tx.QueryContext(context.Background(), query, args...)
}
// QueryMapContext query with args in a map
func (tx *Tx) QueryMapContext(ctx context.Context, query string, mp interface{}) (*Rows, error) {
query, args, err := MapToSlice(query, mp)
if err != nil {
return nil, err
}
return tx.QueryContext(ctx, query, args...)
}
// QueryMap query with args in a map
func (tx *Tx) QueryMap(query string, mp interface{}) (*Rows, error) {
return tx.QueryMapContext(context.Background(), query, mp)
}
// QueryStructContext query with args in struct
func (tx *Tx) QueryStructContext(ctx context.Context, query string, st interface{}) (*Rows, error) {
query, args, err := StructToSlice(query, st)
if err != nil {
return nil, err
}
return tx.QueryContext(ctx, query, args...)
}
// QueryStruct query with args in struct
func (tx *Tx) QueryStruct(query string, st interface{}) (*Rows, error) {
return tx.QueryStructContext(context.Background(), query, st)
}
// QueryRowContext query one row with args
func (tx *Tx) QueryRowContext(ctx context.Context, query string, args ...interface{}) *Row {
rows, err := tx.QueryContext(ctx, query, args...)
return &Row{rows, err}
}
// QueryRow query one row with args
func (tx *Tx) QueryRow(query string, args ...interface{}) *Row {
return tx.QueryRowContext(context.Background(), query, args...)
}
// QueryRowMapContext query one row with args in a map
func (tx *Tx) QueryRowMapContext(ctx context.Context, query string, mp interface{}) *Row {
query, args, err := MapToSlice(query, mp)
if err != nil {
return &Row{nil, err}
}
return tx.QueryRowContext(ctx, query, args...)
}
// QueryRowMap query one row with args in a map
func (tx *Tx) QueryRowMap(query string, mp interface{}) *Row {
return tx.QueryRowMapContext(context.Background(), query, mp)
}
// QueryRowStructContext query one row with args in struct
func (tx *Tx) QueryRowStructContext(ctx context.Context, query string, st interface{}) *Row {
query, args, err := StructToSlice(query, st)
if err != nil {
return &Row{nil, err}
}
return tx.QueryRowContext(ctx, query, args...)
}
// QueryRowStruct query one row with args in struct
func (tx *Tx) QueryRowStruct(query string, st interface{}) *Row {
return tx.QueryRowStructContext(context.Background(), query, st)
}