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<?php |
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namespace SilverStripe\FullTextSearch\Solr\Writers; |
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use InvalidArgumentException; |
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use SilverStripe\FullTextSearch\Search\Criteria\SearchCriterion; |
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use SilverStripe\FullTextSearch\Search\Queries\AbstractSearchQueryWriter; |
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/** |
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* Class SolrSearchQueryWriter_Range |
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* @package SilverStripe\FullTextSearch\Solr\Writers |
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*/ |
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class SolrSearchQueryWriterRange extends AbstractSearchQueryWriter |
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{ |
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/** |
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* @param SearchCriterion $searchCriterion |
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* @return string |
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*/ |
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public function generateQueryString(SearchCriterion $searchCriterion) |
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{ |
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return sprintf( |
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'%s(%s:%s%s%s%s%s)', |
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$this->getComparisonPolarity($searchCriterion->getComparison()), |
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addslashes($searchCriterion->getTarget()), |
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$this->getOpenComparisonContainer($searchCriterion->getComparison()), |
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$this->getLeftComparison($searchCriterion), |
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$this->getComparisonConjunction(), |
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$this->getRightComparison($searchCriterion), |
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$this->getCloseComparisonContainer($searchCriterion->getComparison()) |
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); |
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} |
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/** |
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* Is this a positive (+) or negative (-) Solr comparison. |
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* |
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* @param string $comparison |
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* @return string |
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*/ |
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protected function getComparisonPolarity($comparison) |
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{ |
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switch ($comparison) { |
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case SearchCriterion::ISNULL: |
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return '-'; |
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default: |
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return '+'; |
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} |
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} |
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/** |
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* Select the value that we want as our left comparison value. |
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* |
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* @param SearchCriterion $searchCriterion |
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* @return mixed|string |
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* @throws InvalidArgumentException |
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*/ |
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protected function getLeftComparison(SearchCriterion $searchCriterion) |
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{ |
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switch ($searchCriterion->getComparison()) { |
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case SearchCriterion::GREATER_EQUAL: |
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case SearchCriterion::GREATER_THAN: |
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return $searchCriterion->getValue(); |
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case SearchCriterion::ISNULL: |
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case SearchCriterion::ISNOTNULL: |
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case SearchCriterion::LESS_EQUAL: |
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case SearchCriterion::LESS_THAN: |
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return '*'; |
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default: |
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throw new InvalidArgumentException('Invalid comparison for RangeCriterion'); |
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} |
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} |
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/** |
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* Select the value that we want as our right comparison value. |
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* |
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* @param SearchCriterion $searchCriterion |
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* @return mixed|string |
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* @throws InvalidArgumentException |
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*/ |
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protected function getRightComparison(SearchCriterion $searchCriterion) |
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{ |
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switch ($searchCriterion->getComparison()) { |
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case SearchCriterion::GREATER_EQUAL: |
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case SearchCriterion::GREATER_THAN: |
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case SearchCriterion::ISNULL: |
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case SearchCriterion::ISNOTNULL: |
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return '*'; |
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case SearchCriterion::LESS_EQUAL: |
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case SearchCriterion::LESS_THAN: |
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return $searchCriterion->getValue(); |
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default: |
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throw new InvalidArgumentException('Invalid comparison for RangeCriterion'); |
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} |
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} |
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/** |
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* Decide how we are comparing our left and right values. |
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* |
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* @return string |
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*/ |
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protected function getComparisonConjunction() |
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{ |
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return ' TO '; |
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} |
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/** |
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* Does our comparison need a container? EG: "[* TO *]"? If so, return the opening container brace. |
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* |
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* @param string $comparison |
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* @return string |
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* @throws InvalidArgumentException |
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*/ |
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protected function getOpenComparisonContainer($comparison) |
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{ |
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switch ($comparison) { |
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case SearchCriterion::GREATER_EQUAL: |
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case SearchCriterion::LESS_EQUAL: |
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case SearchCriterion::ISNULL: |
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case SearchCriterion::ISNOTNULL: |
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return '['; |
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case SearchCriterion::GREATER_THAN: |
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case SearchCriterion::LESS_THAN: |
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return '{'; |
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default: |
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throw new InvalidArgumentException('Invalid comparison for RangeCriterion'); |
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} |
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} |
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/** |
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* Does our comparison need a container? EG: "[* TO *]"? If so, return the closing container brace. |
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* |
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* @param string $comparison |
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* @return string |
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* @throws InvalidArgumentException |
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*/ |
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protected function getCloseComparisonContainer($comparison) |
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{ |
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switch ($comparison) { |
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case SearchCriterion::GREATER_EQUAL: |
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case SearchCriterion::LESS_EQUAL: |
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case SearchCriterion::ISNULL: |
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case SearchCriterion::ISNOTNULL: |
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return ']'; |
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case SearchCriterion::GREATER_THAN: |
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case SearchCriterion::LESS_THAN: |
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return '}'; |
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default: |
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throw new InvalidArgumentException('Invalid comparison for RangeCriterion'); |
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} |
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} |
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} |
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silverstripe /
silverstripe-fulltextsearch
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