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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Query\Expr;
/**
* Expression class for DQL math statements.
*
* @link www.doctrine-project.org
*/
class Math
{
/** @var mixed */
protected $leftExpr;
/** @var string */
protected $operator;
/** @var mixed */
protected $rightExpr;
/**
* Creates a mathematical expression with the given arguments.
*
* @param mixed $leftExpr
* @param string $operator
* @param mixed $rightExpr
*/
public function __construct($leftExpr, $operator, $rightExpr)
{
$this->leftExpr = $leftExpr;
$this->operator = $operator;
$this->rightExpr = $rightExpr;
}
/** @return mixed */
public function getLeftExpr()
{
return $this->leftExpr;
}
/** @return string */
public function getOperator()
{
return $this->operator;
}
/** @return mixed */
public function getRightExpr()
{
return $this->rightExpr;
}
/** @return string */
public function __toString()
{
// Adjusting Left Expression
$leftExpr = (string) $this->leftExpr;
if ($this->leftExpr instanceof Math) {
$leftExpr = '(' . $leftExpr . ')';
}
// Adjusting Right Expression
$rightExpr = (string) $this->rightExpr;
if ($this->rightExpr instanceof Math) {
$rightExpr = '(' . $rightExpr . ')';
}
return $leftExpr . ' ' . $this->operator . ' ' . $rightExpr;
}
}
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