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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\db\conditions;
use yii\db\ExpressionBuilderInterface;
use yii\db\ExpressionBuilderTrait;
use yii\db\ExpressionInterface;
/**
* Class NotConditionBuilder builds objects of [[NotCondition]]
*
* @author Dmytro Naumenko <d.naumenko.a@gmail.com>
* @since 2.0.14
*/
class NotConditionBuilder implements ExpressionBuilderInterface
{
use ExpressionBuilderTrait;
/**
* Method builds the raw SQL from the $expression that will not be additionally
* escaped or quoted.
*
* @param ExpressionInterface|NotCondition $expression the expression to be built.
* @param array $params the binding parameters.
* @return string the raw SQL that will not be additionally escaped or quoted.
*/
public function build(ExpressionInterface $expression, array &$params = [])
{
$operand = $expression->getCondition();
if ($operand === '') {
return '';
}
$expession = $this->queryBuilder->buildCondition($operand, $params);
return "{$this->getNegationOperator()} ($expession)";
}
/**
* @return string
*/
protected function getNegationOperator()
{
return 'NOT';
}
}