SemanticMediaWiki/includes/storage/SMW_QueryResult.php

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<?php

class SMWQueryResult {
        
        protected $mResults;
        
        protected $mPrintRequests;
        
        protected $mFurtherResults;
        
        protected $mQuery;
        
        protected $mStore;

        public function __construct( array $printRequests, SMWQuery $query, array $results, SMWStore $store, $furtherRes = false ) {
                $this->mResults = $results;
                reset( $this->mResults );
                $this->mPrintRequests = $printRequests;
                $this->mFurtherResults = $furtherRes;
                $this->mQuery = $query;
                $this->mStore = $store;
        }

        public function getStore() {
                return $this->mStore;
        }

        public function getNext() {
                $page = current( $this->mResults );
                next( $this->mResults );
                
                if ( $page === false ) return false;
                
                $row = array();
                
                foreach ( $this->mPrintRequests as $p ) {
                        $row[] = new SMWResultArray( $page, $p, $this->mStore );
                }
                
                return $row;
        }

        public function getCount() {
                return count( $this->mResults );
        }

        public function getResults() {
                return $this->mResults;
        }

        public function getColumnCount() {
                return count( $this->mPrintRequests );
        }

        public function getPrintRequests() {
                return $this->mPrintRequests;
        }

        public function getQueryString() {
                return $this->mQuery->getQueryString();
        }

        public function hasFurtherResults() {
                return $this->mFurtherResults;
        }

        public function getErrors() {
                // Just use query errors, as no errors generated in this class at the moment.
                return $this->mQuery->getErrors();
        }

        public function addErrors( array $errors ) {
                $this->mQuery->addErrors( $errors );
        }

        public function getQueryLink( $caption = false ) {
                $params = array( trim( $this->mQuery->getQueryString() ) );
                
                foreach ( $this->mQuery->getExtraPrintouts() as /* SMWPrintRequest */ $printout ) {
                        $serialization = $printout->getSerialisation();
                        
                        // TODO: this is a hack to get rid of the mainlabel param in case it was automatically added
                        // by SMWQueryProcessor::addThisPrintout. Should be done nicer when this link creation gets redone.
                        if ( $serialization !== '?#' ) {
                                $params[] = $serialization;
                        }
                }
                
                if ( $this->mQuery->getMainLabel() !== false ) {
                        $params['mainlabel'] = $this->mQuery->getMainLabel();
                }

                $params['offset'] = $this->mQuery->getOffset() + count( $this->mResults );
                
                if ( $params['offset'] === 0 ) {
                        unset( $params['offset'] );
                }
                
                if ( $this->mQuery->getLimit() > 0 ) {
                        $params['limit'] = $this->mQuery->getLimit();
                }

                if ( count( $this->mQuery->sortkeys ) > 0 ) {
                        $order = implode( ',', $this->mQuery->sortkeys );
                        $sort = implode( ',', array_keys( $this->mQuery->sortkeys ) );
                        
                        if ( $sort !== '' || $order != 'ASC' ) {
                                $params['order'] = $order;
                                $params['sort'] = $sort;                        
                        }
                }
                
                if ( $caption == false ) {
                        $caption = ' ' . wfMsgForContent( 'smw_iq_moreresults' ); // The space is right here, not in the QPs!
                }
                
                // Note: the initial : prevents SMW from reparsing :: in the query string.
                $result = SMWInfolink::newInternalLink( $caption, ':Special:Ask', false, $params );
                
                return $result;
        }
        
        public function serializeToArray() {
                return SMWDISerializer::getSerializedQueryResult( $this );
        }
        
}

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