Viewing file:  TransactionStatement.php (2.8 KB) -rw-r--r--
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<?php
/**
* Transaction statement.
*
* @package SqlParser
* @subpackage Statements
*/
namespace SqlParserStatements;
use SqlParserParser;
use SqlParserStatement;
use SqlParserTokensList;
use SqlParserComponentsOptionsArray;
/**
* Transaction statement.
*
* @category Statements
* @package SqlParser
* @subpackage Statements
* @author Dan Ungureanu <udan1107@gmail.com>
* @license http://opensource.org/licenses/GPL-2.0 GNU Public License
*/
class TransactionStatement extends Statement
{
/**
* START TRANSACTION and BEGIN
*
* @var int
*/
const TYPE_BEGIN = 1;
/**
* COMMIT and ROLLBACK
*
* @var int
*/
const TYPE_END = 2;
/**
* The type of this query.
*
* @var int
*/
public $type;
/**
* The list of statements in this transaction.
*
* @var Statement[]
*/
public $statements;
/**
* The ending transaction statement which may be a `COMMIT` or a `ROLLBACK`.
*
* @var TransactionStatement
*/
public $end;
/**
* Options for this query.
*
* @var array
*/
public static $OPTIONS = array(
'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'))
) {
$this->type = TransactionStatement::TYPE_BEGIN;
} elseif (($this->options->has('COMMIT'))
|| ($this->options->has('ROLLBACK'))
) {
$this->type = TransactionStatement::TYPE_END;
}
}
/**
* @return string
*/
public function build()
{
$ret = OptionsArray::build($this->options);
if ($this->type === TransactionStatement::TYPE_BEGIN) {
foreach ($this->statements as $statement) {
/**
* @var SelectStatement $statement
*/
$ret .= ';' . $statement->build();
}
$ret .= ';' . $this->end->build();
}
return $ret;
}
}
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