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<?php |
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namespace Nayjest\Querying\Handler\PostProcess; |
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use InvalidArgumentException; |
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use Nayjest\Querying\Handler\AbstractHandler; |
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use Nayjest\Querying\Handler\Priority; |
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use Nayjest\Querying\Operation\FilterOperation; |
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use Nayjest\Querying\Row\RowInterface; |
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/** |
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* Class FilterHandler |
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*/ |
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class FilterHandler extends AbstractHandler |
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{ |
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const PRIORITY = Priority::POST_PROCESS; |
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1 |
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public function getPriority() |
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{ |
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return self::PRIORITY; |
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} |
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/** |
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* Applies operation to source and returns modified source. |
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* |
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*/ |
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1 |
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public function apply($dataSource) |
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{ |
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/** @var FilterOperation $operation */ |
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$operation = $this->operation; |
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foreach ($dataSource as $row) { |
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/** @var RowInterface $row */ |
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$testedValue = $row->get($operation->getField()); |
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$argument = $operation->getValue(); |
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$operator = $operation->getOperator(); |
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if ($this->checkValue($testedValue, $operator, $argument)) { |
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yield $row; |
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} |
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} |
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} |
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/** |
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* @param $testedValue |
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* @param string $operator |
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* @param $argument |
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* @return bool |
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* @throws InvalidArgumentException |
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* |
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*/ |
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protected function checkValue($testedValue, $operator, $argument) |
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{ |
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switch ($operator) { |
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case FilterOperation::OPERATOR_EQ: |
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return $testedValue == $argument; |
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case FilterOperation::OPERATOR_GT: |
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return $testedValue > $argument; |
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case FilterOperation::OPERATOR_GTE: |
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return $testedValue >= $argument; |
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case FilterOperation::OPERATOR_LT: |
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return $testedValue < $argument; |
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1 |
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case FilterOperation::OPERATOR_LTE: |
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return $testedValue <= $argument; |
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1 |
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case FilterOperation::OPERATOR_NOT_EQ: |
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return $testedValue != $argument; |
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case FilterOperation::OPERATOR_STR_CONTAINS: |
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return strpos($testedValue, $argument) !== false; |
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case FilterOperation::OPERATOR_STR_STARTS_WITH: |
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return strpos($testedValue, $argument) === 0; |
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case FilterOperation::OPERATOR_STR_ENDS_WITH: |
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return strpos($testedValue, $argument, strlen($testedValue) - strlen($argument)) !== false; |
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default: |
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throw new InvalidArgumentException( |
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'Unsupported operator ' . $operator |
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); |
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} |
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} |
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} |
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Nayjest /
Querying
