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1
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<?php |
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3
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/** |
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* Formats that return a time. |
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* @since 1.8 |
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* |
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* @file SRF_Time.php |
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* @ingroup SemanticResultFormats |
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* |
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* @licence GNU GPL v3+ |
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* @author nischayn22 |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class SRFTime 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_latest, srf_printername_earliest |
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return wfMessage( 'srf_printername_' . $this->mFormat )->text(); |
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} |
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/** |
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* (non-PHPdoc) |
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* @see SMWResultPrinter::getResultText() |
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*/ |
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2 |
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protected function getResultText( SMWQueryResult $res, $outputmode ) { |
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2 |
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$dataItems = $this->getSortKeys( $res ); |
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2 |
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if ( empty( $dataItems ) ) { |
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return $this->params['default']; |
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} |
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2 |
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$sortKeys = array_keys( $dataItems ); |
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2 |
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switch ( $this->mFormat ) { |
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2 |
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case 'latest': |
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1 |
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$result = max( $sortKeys ); |
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1 |
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break; |
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1 |
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case 'earliest': |
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1 |
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$result = min( $sortKeys ); |
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1 |
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break; |
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} |
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2 |
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$dataValue = SMWDataValueFactory::newDataItemValue( $dataItems[$result], null ); |
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return $dataValue->getLongHTMLText(); |
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} |
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/** |
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* Returns an array with sortkeys for dates pointing to their source DataItems. |
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* |
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* @param SMWQueryResult $res |
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* |
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* @return array |
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*/ |
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2 |
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protected function getSortKeys( SMWQueryResult $res ) { |
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2 |
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$seconds = []; |
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2 |
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while ( $row = $res->getNext() ) { |
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foreach( $row as /* SMWResultArray */ $resultArray ) { |
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2 |
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foreach ( $resultArray->getContent() as /* SMWDataItem */ $dataItem ) { |
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if ( $dataItem->getDIType() === SMWDataItem::TYPE_TIME ) { |
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$seconds[$dataItem->getSortKey()] = $dataItem; |
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} |
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} |
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} |
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} |
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return $seconds; |
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} |
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/** |
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* @see SMWResultPrinter::getParamDefinitions |
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* |
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* @since 1.8 |
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* |
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* @param $definitions array of IParamDefinition |
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* |
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* @return array of IParamDefinition|array |
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*/ |
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2 |
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public function getParamDefinitions( array $definitions ) { |
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$params = parent::getParamDefinitions( $definitions ); |
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$params['limit'] = [ |
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'type' => 'integer', |
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'default' => 1000, |
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'message' => 'srf_paramdesc_limit', |
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]; |
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return $params; |
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} |
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96
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} |
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SemanticMediaWiki /
SemanticResultFormats
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: