/
ExistsIn.php
94 lines (85 loc) · 2.7 KB
/
ExistsIn.php
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<?php
/**
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\ORM\Rule;
use Cake\Datasource\EntityInterface;
use Cake\ORM\Association;
/**
* Checks that the value provided in a field exists as the primary key of another
* table.
*/
class ExistsIn
{
/**
* The list of fields to check
*
* @var array
*/
protected $_fields;
/**
* The repository where the field will be looked for
*
* @var array
*/
protected $_repository;
/**
* Constructor.
*
* @param string|array $fields The field or fields to check existence as primary key.
* @param object|string $repository The repository where the field will be looked for,
* or the association name for the repository.
*/
public function __construct($fields, $repository)
{
$this->_fields = (array)$fields;
$this->_repository = $repository;
}
/**
* Performs the existence check
*
* @param \Cake\Datasource\EntityInterface $entity The entity from where to extract the fields
* @param array $options Options passed to the check,
* where the `repository` key is required.
* @return bool
*/
public function __invoke(EntityInterface $entity, array $options)
{
if (is_string($this->_repository)) {
$this->_repository = $options['repository']->association($this->_repository);
}
if (!empty($options['_sourceTable'])) {
$source = $this->_repository instanceof Association ?
$this->_repository->target() :
$this->_repository;
if ($source === $options['_sourceTable']) {
return true;
}
}
if (!$entity->extract($this->_fields, true)) {
return true;
}
$alias = $this->_repository->alias();
$primary = array_map(
function ($key) use ($alias) {
return "$alias.$key";
},
(array)$this->_repository->primaryKey()
);
$conditions = array_combine(
$primary,
$entity->extract($this->_fields)
);
return $this->_repository->exists($conditions);
}
}