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<?php
namespace kalanis\kw_mapper\Mappers\Shared;
/**
* Trait TForeignKey
* @package kalanis\kw_mapper\Mappers\Shared
* Accessing foreign keys
*
* @todo idea: fk from/to composite keys
* - shall be like array where the first entry is what will join and then what entry aliases will be used
*/
trait TForeignKey
{
/** @var array<string, ForeignKey> */
protected $foreignKeys = [];
/** @var ForeignKey|null */
private $foreignKeyClass = null;
public function addForeignKey(string $localAlias, string $remoteRecord, string $localEntryKey, string $remoteEntryKey): void
$this->initClassFks();
$foreignKeyClass = clone $this->foreignKeyClass;
$this->foreignKeys[$localAlias] = $foreignKeyClass->setData($localAlias, $remoteRecord, $localEntryKey, $remoteEntryKey);
}
private function initClassFks(): void
if (empty($this->foreignKeyClass)) {
$this->foreignKeyClass = new ForeignKey();
* @return array<string, ForeignKey>
public function getForeignKeys(): array
return $this->foreignKeys;
alex-kalanis /
kw_mapper
