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<?php |
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namespace Oliverde8\Component\PhpEtl\ChainOperation\Grouping; |
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use oliverde8\AssociativeArraySimplified\AssociativeArray; |
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use Oliverde8\Component\PhpEtl\ChainOperation\AbstractChainOperation; |
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use Oliverde8\Component\PhpEtl\ChainOperation\DataChainOperationInterface; |
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use Oliverde8\Component\PhpEtl\Item\ChainBreakItem; |
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use Oliverde8\Component\PhpEtl\Item\DataItemInterface; |
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use Oliverde8\Component\PhpEtl\Item\GroupedItem; |
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use Oliverde8\Component\PhpEtl\Item\ItemInterface; |
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use Oliverde8\Component\PhpEtl\Item\StopItem; |
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/** |
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* Class SimpleGrouping |
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* |
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* @author de Cramer Oliver<[email protected]> |
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* @copyright 2018 Oliverde8 |
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* @package Oliverde8\Component\PhpEtl\ChainOperation\Grouping |
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*/ |
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class SimpleGroupingOperation extends AbstractChainOperation implements DataChainOperationInterface |
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{ |
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public $groupKey = []; |
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public $groupIdentifierKey = []; |
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public $data = []; |
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/** |
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* SimpleGrouping constructor. |
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* |
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* @param array $groupKey |
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*/ |
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public function __construct(array $groupKey, array $groupIdentifierKey = []) |
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{ |
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$this->groupKey = $groupKey; |
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$this->groupIdentifierKey = $groupIdentifierKey; |
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} |
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public function processData(DataItemInterface $item, array &$context): ItemInterface |
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{ |
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$groupingValue = AssociativeArray::getFromKey($item->getData(), $this->groupKey); |
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if (!empty($this->groupIdentifierKey)) { |
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$groupIdValue = AssociativeArray::getFromKey($item->getData(), $this->groupIdentifierKey); |
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$this->data[$groupingValue][$groupIdValue] = $item->getData(); |
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} else { |
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$this->data[$groupingValue][] = $item->getData(); |
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} |
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return new ChainBreakItem(); |
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} |
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public function processStop(StopItem $stopItem, array &$context): ItemInterface |
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{ |
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if (empty($this->data)) { |
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return $stopItem; |
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} |
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$data = $this->data; |
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$this->data = []; |
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return new GroupedItem(new \ArrayIterator($data)); |
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} |
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} |
oliverde8 /
php-etl
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.