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<?php |
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/** |
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* Various mathematical functions - sum, product, average, min and max. |
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* |
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* @licence GNU GPL v3+ |
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* |
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* @author Jeroen De Dauw < [email protected] > |
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* @author Yaron Koren |
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* @author Nathan Yergler |
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*/ |
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class SRFMath extends SMWResultPrinter { |
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/** |
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* (non-PHPdoc) |
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* @see SMWResultPrinter::getName() |
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*/ |
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public function getName() { |
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// Give grep a chance to find the usages: |
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// srf_printername_max, srf_printername_min, srf_printername_sum, |
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// srf_printername_product, srf_printername_average, srf_printername_median |
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return wfMessage( 'srf_printername_' . $this->mFormat )->text(); |
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} |
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/** |
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* @see SMWResultPrinter::buildResult |
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* |
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* @since 1.8 |
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* |
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* @param SMWQueryResult $results |
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* |
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* @return string |
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*/ |
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protected function buildResult( SMWQueryResult $results ) { |
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$number = $this->getResultText( $results, SMW_OUTPUT_HTML ); |
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if ( count( $results->getPrintRequests() ) > 1 ) { |
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$outputformat = $results->getPrintRequests()[1]->getOutputFormat(); |
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} else { |
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// no mainlabel |
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$outputformat = $results->getPrintRequests()[0]->getOutputFormat(); |
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} |
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// if raw-format ("-") than skip formatNum() |
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if ( $outputformat != "-" ) { |
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$dataValue = \SMW\DataValueFactory::getInstance()->newDataValueByType( '_num' ); |
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$number = $dataValue->getLocalizedFormattedNumber( $number ); |
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} |
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return (string)$number; |
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} |
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/** |
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* @see SMWResultPrinter::getResultText() |
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*/ |
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protected function getResultText( SMWQueryResult $res, $outputmode ) { |
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$numbers = $this->getNumbers( $res ); |
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if ( count( $numbers ) == 0 ) { |
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return $this->params['default']; |
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} |
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switch ( $this->mFormat ) { |
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case 'max': |
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return max( $numbers ); |
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break; |
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case 'min': |
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return min( $numbers ); |
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break; |
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case 'sum': |
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return array_sum( $numbers ); |
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break; |
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case 'product': |
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return array_product( $numbers ); |
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break; |
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case 'average': |
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return array_sum( $numbers ) / count( $numbers ); |
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break; |
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case 'median': |
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sort( $numbers, SORT_NUMERIC ); |
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$position = ( count( $numbers ) + 1 ) / 2 - 1; |
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return ( $numbers[ceil( $position )] + $numbers[floor( $position )] ) / 2; |
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break; |
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} |
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} |
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/** |
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* @param SMWQueryResult $res |
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* |
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* @return float[] |
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*/ |
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private function getNumbers( SMWQueryResult $res ) { |
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$numbers = []; |
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while ( $row = $res->getNext() ) { |
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foreach ( $row as $resultArray ) { |
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foreach ( $resultArray->getContent() as $dataItem ) { |
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self::addNumbersForDataItem( $dataItem, $numbers ); |
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} |
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} |
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} |
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return $numbers; |
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} |
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/** |
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* @param SMWDataItem $dataItem |
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* @param float[] $numbers |
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*/ |
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private function addNumbersForDataItem( SMWDataItem $dataItem, array &$numbers ) { |
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switch ( $dataItem->getDIType() ) { |
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case SMWDataItem::TYPE_NUMBER: |
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$numbers[] = $dataItem->getNumber(); |
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break; |
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case SMWDataItem::TYPE_CONTAINER: |
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foreach ( $dataItem->getDataItems() as $di ) { |
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self::addNumbersForDataItem( $di, $numbers ); |
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} |
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break; |
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default: |
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} |
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1 |
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} |
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} |
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The break statement is not necessary if it is preceded for example by a return statement:
If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.