<?php
declare(strict_types=1);
namespace Doctrine\DBAL\Platforms\SQLServer\SQL\Builder;
use Doctrine\DBAL\Platforms\SQLServerPlatform;
use Doctrine\DBAL\Query\ForUpdate\ConflictResolutionMode;
use Doctrine\DBAL\Query\SelectQuery;
use Doctrine\DBAL\SQL\Builder\SelectSQLBuilder;
use function count;
use function implode;
final class SQLServerSelectSQLBuilder implements SelectSQLBuilder
{
/** @internal The SQL builder should be instantiated only by database platforms. */
public function __construct(
private readonly SQLServerPlatform $platform,
) {
}
public function buildSQL(SelectQuery $query): string
{
$parts = ['SELECT'];
if ($query->isDistinct()) {
$parts[] = 'DISTINCT';
}
$parts[] = implode(', ', $query->getColumns());
$from = $query->getFrom();
if (count($from) > 0) {
$parts[] = 'FROM ' . implode(', ', $from);
}
$forUpdate = $query->getForUpdate();
if ($forUpdate !== null) {
$with = ['UPDLOCK', 'ROWLOCK'];
if ($forUpdate->getConflictResolutionMode() === ConflictResolutionMode::SKIP_LOCKED) {
$with[] = 'READPAST';
}
$parts[] = 'WITH (' . implode(', ', $with) . ')';
}
$where = $query->getWhere();
if ($where !== null) {
$parts[] = 'WHERE ' . $where;
}
$groupBy = $query->getGroupBy();
if (count($groupBy) > 0) {
$parts[] = 'GROUP BY ' . implode(', ', $groupBy);
}
$having = $query->getHaving();
if ($having !== null) {
$parts[] = 'HAVING ' . $having;
}
$orderBy = $query->getOrderBy();
if (count($orderBy) > 0) {
$parts[] = 'ORDER BY ' . implode(', ', $orderBy);
}
$sql = implode(' ', $parts);
$limit = $query->getLimit();
if ($limit->isDefined()) {
$sql = $this->platform->modifyLimitQuery($sql, $limit->getMaxResults(), $limit->getFirstResult());
}
return $sql;
}
}