SemanticMediaWiki/includes/api/ApiSMWQuery.php

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<?php

abstract class ApiSMWQuery extends ApiBase {
        
        protected $parameters;
        
        protected function getQuery( $queryString, array $printouts ) {
                SMWQueryProcessor::addThisPrintout( $printouts, $this->parameters );
                
                return SMWQueryProcessor::createQuery(
                        $queryString,
                        SMWQueryProcessor::getProcessedParams( $this->parameters, $printouts ),
                        SMWQueryProcessor::SPECIAL_PAGE,
                        '',
                        $printouts
                );
        }
        
        protected function getQueryResult( SMWQuery $query ) {
                 return smwfGetStore()->getQueryResult( $query );
        }
        
        protected function addQueryResult( SMWQueryResult $queryResult ) {
                $serialized = $queryResult->serializeToArray();
                $result = $this->getResult();

                $result->setIndexedTagName( $serialized['results'], 'result' );
                $result->setIndexedTagName( $serialized['printrequests'], 'printrequest' );
                
                foreach ( $serialized['results'] as $subjectName => $subject ) {
                        if ( is_array( $subject ) && array_key_exists( 'printouts', $subject ) ) {
                                foreach ( $subject['printouts'] as $property => $values ) {
                                        if ( is_array( $values ) ) {
                                                $result->setIndexedTagName( $serialized['results'][$subjectName]['printouts'][$property], 'value' );
                                        }
                                }
                        }
                }
                
                $result->addValue( null, 'query', $serialized );
                
                if ( $queryResult->hasFurtherResults() ) {
                        // TODO: obtain continuation data from store
                        $result->disableSizeCheck();
                        $result->addValue( null, 'query-continue', 0 );
                        $result->enableSizeCheck();
                }
        }
        
        protected function requireParameters( array $params, array $required ) {
                foreach ( $required as $param ) {
                        if ( !isset( $params[$param] ) ) {
                                $this->dieUsageMsg( array( 'missingparam', $param ) );
                        }
                }
        }
        
}

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