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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;
use yii\db\Query;
/**
* Class BetweenColumnsConditionBuilder builds objects of [[BetweenColumnsCondition]]
*
* @author Dmytro Naumenko <d.naumenko.a@gmail.com>
* @since 2.0.14
*/
class BetweenColumnsConditionBuilder implements ExpressionBuilderInterface
{
use ExpressionBuilderTrait;
/**
* Method builds the raw SQL from the $expression that will not be additionally
* escaped or quoted.
*
* @param ExpressionInterface|BetweenColumnsCondition $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 = [])
{
$operator = $expression->getOperator();
$startColumn = $this->escapeColumnName($expression->getIntervalStartColumn(), $params);
$endColumn = $this->escapeColumnName($expression->getIntervalEndColumn(), $params);
$value = $this->createPlaceholder($expression->getValue(), $params);
return "$value $operator $startColumn AND $endColumn";
}
/**
* Prepares column name to be used in SQL statement.
*
* @param Query|ExpressionInterface|string $columnName
* @param array $params the binding parameters.
* @return string
*/
protected function escapeColumnName($columnName, &$params = [])
{
if ($columnName instanceof Query) {
list($sql, $params) = $this->queryBuilder->build($columnName, $params);
return "($sql)";
} elseif ($columnName instanceof ExpressionInterface) {
return $this->queryBuilder->buildExpression($columnName, $params);
} elseif (strpos($columnName, '(') === false) {
return $this->queryBuilder->db->quoteColumnName($columnName);
}
return $columnName;
}
/**
* Attaches $value to $params array and returns placeholder.
*
* @param mixed $value
* @param array $params passed by reference
* @return string
*/
protected function createPlaceholder($value, &$params)
{
if ($value instanceof ExpressionInterface) {
return $this->queryBuilder->buildExpression($value, $params);
}
return $this->queryBuilder->bindParam($value, $params);
}
}