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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\ORM\Entities\Nodes; |
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use Spiral\ORM\Entities\Nodes\Traits\DuplicateTrait; |
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use Spiral\ORM\Exceptions\NodeException; |
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use Spiral\ORM\ORMInterface; |
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/** |
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* Provides ability to parse columns of target table and map table all together. |
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*/ |
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class PivotedNode extends AbstractNode implements ArrayInterface |
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{ |
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use DuplicateTrait; |
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/** |
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* @invisible |
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* @var int |
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*/ |
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private $countPivot = 0; |
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/** |
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* @var string |
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*/ |
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protected $innerPivotKey; |
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/** |
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* @var string |
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*/ |
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protected $outerPivotKey; |
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/** |
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* @param array $columns |
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* @param array $pivotColumns |
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* @param string $outerKey |
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* @param string $innerPivotKey |
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* @param string $outerPivotKey |
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*/ |
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public function __construct( |
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array $columns = [], |
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array $pivotColumns = [], |
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string $outerKey, |
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string $innerPivotKey, |
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string $outerPivotKey |
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) { |
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//Pivot columns are always prior to table columns |
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parent::__construct(array_merge($pivotColumns, $columns), $outerKey); |
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$this->countPivot = count($pivotColumns); |
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$this->innerPivotKey = $innerPivotKey; |
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$this->outerPivotKey = $outerPivotKey; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function pushData(array &$data) |
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{ |
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if (empty($this->parent)) { |
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throw new NodeException("Unable to register data tree, parent is missing"); |
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} |
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if (is_null($data[ORMInterface::PIVOT_DATA][$this->outerPivotKey])) { |
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//No data was loaded |
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return; |
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} |
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//Mounting parsed data into parent under defined container |
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$this->parent->mountArray( |
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$this->container, |
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$this->outerKey, |
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$data[ORMInterface::PIVOT_DATA][$this->innerPivotKey], |
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$data |
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); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* Method fetches pivot data into sub-array with key "@pivot". |
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*/ |
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protected function fetchData(int $dataOffset, array $line): array |
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{ |
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$data = parent::fetchData($dataOffset, $line); |
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//Forming pivot data presence |
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return array_merge( |
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[ORMInterface::PIVOT_DATA => array_slice($data, 0, $this->countPivot)], |
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array_slice($data, $this->countPivot) |
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); |
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} |
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/** |
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* De-duplication in pivot tables based on values in pivot table. |
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* |
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* @param array $data |
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* |
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* @return string |
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*/ |
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protected function duplicateCriteria(array &$data) |
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{ |
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$pivotData = $data[ORMInterface::PIVOT_DATA]; |
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//Unique row criteria |
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return $pivotData[$this->innerPivotKey] . '.' . $pivotData[$this->outerPivotKey]; |
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} |
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} |
spiral /
components
