CT-1128 SNFLK autocast types when using string stage table #90
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace Keboola\Db\ImportExport\Backend; | ||
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| use Error; | ||
| use Exception; | ||
| use Generator; | ||
| use Keboola\Db\ImportExport\Exception\ColumnsMismatchException; | ||
| use Keboola\TableBackendUtils\Column\ColumnCollection; | ||
| use Keboola\TableBackendUtils\Column\ColumnInterface; | ||
| use Keboola\TableBackendUtils\Table\TableDefinitionInterface; | ||
| use WeakMap; | ||
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| /** | ||
| * Class will create map of table column based on columns order | ||
| */ | ||
| final class SourceDestinationColumnMap | ||
|
Member
Author
There was a problem hiding this comment. tady to mapování source->destination sloupců sem potřeboval dostat někam ven. |
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| { | ||
| /** | ||
| * @var WeakMap<ColumnInterface,ColumnInterface> | ||
| */ | ||
| private WeakMap $map; | ||
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| /** | ||
| * @param string[] $ignoreColumns | ||
| */ | ||
| public function __construct( | ||
| private readonly ColumnCollection $source, | ||
| private readonly ColumnCollection $destination, | ||
| private readonly array $ignoreColumns = [], | ||
| ) { | ||
| $this->map = new WeakMap(); | ||
| $this->buildMap(); | ||
| } | ||
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| /** | ||
| * @param string[] $ignoreColumns | ||
| */ | ||
| public static function createForTables( | ||
| TableDefinitionInterface $source, | ||
| TableDefinitionInterface $destination, | ||
| array $ignoreColumns = [], | ||
| ): self { | ||
| return new self( | ||
| $source->getColumnsDefinitions(), | ||
| $destination->getColumnsDefinitions(), | ||
| $ignoreColumns | ||
| ); | ||
| } | ||
|
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| private function buildMap(): void | ||
| { | ||
| $it0 = $this->source->getIterator(); | ||
| $it1 = $this->destination->getIterator(); | ||
| while ($it0->valid() || $it1->valid()) { | ||
| $it0 = $this->ignoreColumn($it0, $it1); | ||
| if ($it0 === false) { | ||
| break; | ||
| } | ||
| $it1 = $this->ignoreColumn($it1, $it0); | ||
| if ($it1 === false) { | ||
| break; | ||
| } | ||
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| if ($it0->valid() && $it1->valid()) { | ||
| /** @var ColumnInterface $sourceCol */ | ||
| $sourceCol = $it0->current(); | ||
| /** @var ColumnInterface $destCol */ | ||
| $destCol = $it1->current(); | ||
| $this->map[$sourceCol] = $destCol; | ||
| } else { | ||
| throw ColumnsMismatchException::createColumnsCountMismatch($this->source, $this->destination); | ||
| } | ||
| $it0->next(); | ||
| $it1->next(); | ||
| } | ||
| } | ||
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| public function getDestination(ColumnInterface $source): ColumnInterface | ||
| { | ||
| try { | ||
| $destination = $this->map[$source]; | ||
| } catch (Error $e) { | ||
| // this can happen only when class is used with different source and destination tables instances | ||
| throw new Exception(sprintf('Column "%s" not found in destination table', $source->getColumnName())); | ||
| } | ||
| assert($destination !== null); | ||
| return $destination; | ||
| } | ||
|
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| /** | ||
| * @param Generator<int, ColumnInterface> $it0 | ||
| * @param Generator<int, ColumnInterface> $it1 | ||
| * @return Generator<int, ColumnInterface>|false | ||
| */ | ||
| private function ignoreColumn(Generator $it0, Generator $it1): Generator|false | ||
| { | ||
| if ($this->isIgnoredColumn($it0)) { | ||
| $it0->next(); | ||
| $this->ignoreColumn($it0, $it1); | ||
| if (!$it0->valid() && !$it1->valid()) { | ||
| return false; | ||
| } | ||
| } | ||
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| return $it0; | ||
| } | ||
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| /** | ||
| * @param Generator<int, ColumnInterface> $it | ||
| */ | ||
| private function isIgnoredColumn(Generator $it): bool | ||
| { | ||
| return $it->valid() && in_array($it->current()->getColumnName(), $this->ignoreColumns, true); | ||
| } | ||
| } | ||
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nechápu proč to neni v tom interface