<?php
declare(strict_types=1);
namespace PhpMyAdmin\SqlParser\Statements;
use PhpMyAdmin\SqlParser\Components\OptionsArray;
use PhpMyAdmin\SqlParser\Parser;
use PhpMyAdmin\SqlParser\Statement;
use PhpMyAdmin\SqlParser\TokensList;
/**
* Transaction statement.
*/
class TransactionStatement extends Statement
{
/**
* START TRANSACTION and BEGIN.
*/
public const TYPE_BEGIN = 1;
/**
* COMMIT and ROLLBACK.
*/
public const TYPE_END = 2;
/**
* The type of this query.
*
* @var int|null
*/
public $type;
/**
* The list of statements in this transaction.
*
* @var Statement[]|null
*/
public $statements;
/**
* The ending transaction statement which may be a `COMMIT` or a `ROLLBACK`.
*
* @var TransactionStatement|null
*/
public $end;
/**
* Options for this query.
*
* @var array<string, int|array<int, int|string>>
* @psalm-var array<string, (positive-int|array{positive-int, ('var'|'var='|'expr'|'expr=')})>
*/
public static $OPTIONS = [
'START TRANSACTION' => 1,
'BEGIN' => 1,
'COMMIT' => 1,
'ROLLBACK' => 1,
'WITH CONSISTENT SNAPSHOT' => 2,
'WORK' => 2,
'AND NO CHAIN' => 3,
'AND CHAIN' => 3,
'RELEASE' => 4,
'NO RELEASE' => 4,
];
/**
* @param Parser $parser the instance that requests parsing
* @param TokensList $list the list of tokens to be parsed
*
* @return void
*/
public function parse(Parser $parser, TokensList $list)
{
parent::parse($parser, $list);
// Checks the type of this query.
if ($this->options->has('START TRANSACTION') || $this->options->has('BEGIN')) {
$this->type = self::TYPE_BEGIN;
} elseif ($this->options->has('COMMIT') || $this->options->has('ROLLBACK')) {
$this->type = self::TYPE_END;
}
}
/**
* @return string
*/
public function build()
{
$ret = OptionsArray::build($this->options);
if ($this->type === self::TYPE_BEGIN) {
foreach ($this->statements as $statement) {
/*
* @var SelectStatement $statement
*/
$ret .= ';' . $statement->build();
}
$ret .= ';' . $this->end->build();
}
return $ret;
}
}