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