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<?php |
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|
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declare(strict_types=1); |
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|
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namespace Yatra\Services; |
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|
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/** |
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* Tracks old → new primary keys during import so foreign keys can be rewritten. |
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*/ |
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final class ExportImportIdMapper |
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{ |
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/** @var array<string, array<int, int>> */ |
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private array $maps = []; |
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|
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public function remember(string $entity, int $oldId, int $newId): void |
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{ |
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if ($oldId <= 0 || $newId <= 0) { |
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return; |
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} |
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$this->maps[$entity][$oldId] = $newId; |
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} |
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|
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public function map(string $entity, $oldId): ?int |
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{ |
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if ($oldId === null || $oldId === '') { |
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return null; |
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} |
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$old = (int) $oldId; |
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if ($old <= 0) { |
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return null; |
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} |
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|
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return $this->maps[$entity][$old] ?? null; |
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} |
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|
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/** |
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* For nullable FKs: unmapped IDs become null to avoid pointing at wrong rows. |
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* |
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* @param mixed $oldId |
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*/ |
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public function mapFkNullable(string $entity, $oldId): ?int |
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{ |
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if ($oldId === null || $oldId === '') { |
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return null; |
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} |
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if ((int) $oldId === 0) { |
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return null; |
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} |
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|
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return $this->map($entity, $oldId); |
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} |
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} |
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|
