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<?php
declare(strict_types=1);
namespace Nsfisis\Albatross\Sql\Internal;
use Nsfisis\Albatross\Exceptions\InvalidSqlException;
use Nsfisis\Albatross\Sql\QueryBuilder;
/**
* @internal
*/
final class Select
{
/**
* @var ?list<string>
*/
private ?array $fields;
private ?Join $join = null;
private string $where = '';
/**
* @var list<array{string, string}>
*/
private array $orderBy = [];
/**
* @var ?positive-int
*/
private ?int $limit = null;
public function __construct(
private readonly QueryBuilder $sql,
private readonly string $table,
) {
}
public function leftJoin(string $table, string $on): self
{
$this->join = new Join('LEFT JOIN', $table, $on);
return $this;
}
/**
* @param list<string> $fields
*/
public function fields(array $fields): self
{
$this->fields = $fields;
return $this;
}
public function where(string $where): self
{
$this->where = $where;
return $this;
}
/**
* @param list<array{string, string}> $orderBy
*/
public function orderBy(array $orderBy): self
{
$this->orderBy = $orderBy;
return $this;
}
/**
* @param positive-int $limit
*/
public function limit(int $limit): self
{
$this->limit = $limit;
return $this;
}
public function first(): SelectFirst
{
$this->limit = 1;
return new SelectFirst($this);
}
/**
* @param array<string, string|int> $params
* @return list<array<string, string>>
*/
public function execute(array $params = []): array
{
return $this->sql->_executeSelect($this, $params);
}
/**
* @internal
*/
public function _getTable(): string
{
return $this->table;
}
/**
* @internal
* @return list<string>
*/
public function _getFields(): array
{
if (!isset($this->fields)) {
throw new InvalidSqlException('SELECT: $fields must be set before calling execute()');
}
return $this->fields;
}
/**
* @internal
*/
public function _getJoin(): ?Join
{
return $this->join;
}
/**
* @internal
*/
public function _getWhere(): string
{
return $this->where;
}
/**
* @internal
* @return list<array{string, string}>
*/
public function _getOrderBy(): array
{
return $this->orderBy;
}
/**
* @return ?positive-int
*/
public function _getLimit(): ?int
{
return $this->limit;
}
}
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