Files
espocrm/application/Espo/ORM/Query/Part/Selection.php
2021-07-27 11:26:18 +03:00

77 lines
2.2 KiB
PHP

<?php
/************************************************************************
* This file is part of EspoCRM.
*
* EspoCRM - Open Source CRM application.
* Copyright (C) 2014-2021 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
* Website: https://www.espocrm.com
*
* EspoCRM is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* EspoCRM is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
************************************************************************/
namespace Espo\ORM\Query\Part;
/**
* A select item. Immutable.
*/
class Selection
{
private $expression;
private $alias = null;
private function __construct(Expression $expression, ?string $alias = null)
{
$this->expression = $expression;
$this->alias = $alias;
}
public function getExpression(): Expression
{
return $this->expression;
}
public function getAlias(): ?string
{
return $this->alias;
}
public static function create(Expression $expression, ?string $alias = null): self
{
return new self($expression, $alias);
}
public static function fromString(string $expression): self
{
return self::create(
Expression::create($expression)
);
}
public function withAlias(?string $alias): self
{
$obj = clone $this;
$obj->alias = $alias;
return $obj;
}
}