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<?php
namespace SMW\Query\ResultPrinters;
use Sanitizer;
use SMW\Utils\Csv;
use SMWQueryResult as QueryResult;
/**
* CSV export support
*
* @license GNU GPL v2+
* @since 1.9
*
* @author Nathan R. Yergler
* @author Markus Krötzsch
* @author mwjames
*/
class CsvFileExportPrinter extends FileExportPrinter {
/**
* @see ResultPrinter::getName
*
* {@inheritDoc}
*/
public function getName() {
return $this->msg( 'smw_printername_csv' )->text();
}
/**
* @see FileExportPrinter::getMimeType
*
* @since 1.8
*
* {@inheritDoc}
*/
public function getMimeType( QueryResult $queryResult ) {
return 'text/csv';
}
/**
* @see FileExportPrinter::getFileName
*
* @since 1.8
*
* {@inheritDoc}
*/
public function getFileName( QueryResult $queryResult ) {
return $this->params['filename'];
}
/**
* @see ResultPrinter::getParamDefinitions
*
* @since 1.8
*
* {@inheritDoc}
*/
public function getParamDefinitions( array $definitions ) {
$params = parent::getParamDefinitions( $definitions );
$definitions['searchlabel']->setDefault(
$this->msg( 'smw_csv_link' )->inContentLanguage()->text()
);
$params[] = [
'name' => 'sep',
'message' => 'smw-paramdesc-csv-sep',
'default' => ',',
];
$params['valuesep'] = [
'message' => 'smw-paramdesc-csv-valuesep',
'default' => ',',
];
$params['showsep'] = [
'type' => 'boolean',
'default' => false,
'message' => 'smw-paramdesc-showsep',
];
$params[] = [
'name' => 'filename',
'message' => 'smw-paramdesc-filename',
'default' => 'result.csv',
];
$params['merge'] = [
'type' => 'boolean',
'default' => false,
'message' => 'smw-paramdesc-csv-merge',
];
$params['bom'] = [
'type' => 'boolean',
'default' => false,
'message' => 'smw-paramdesc-csv-bom',
];
return $params;
}
/**
* @see ResultPrinter::getResultText
*
* {@inheritDoc}
*/
protected function getResultText( QueryResult $res, $outputMode ) {
// Always return a link for when the output mode is not a file request,
// a file request is normally only initiated when resolving the query
// via Special:Ask
if ( $outputMode !== SMW_OUTPUT_FILE ) {
return $this->getCsvLink( $res, $outputMode );
}
$csv = new Csv(
$this->params['showsep'],
$this->params['bom']
);
return $this->getCsv( $csv, $res );
}
private function getCsvLink( QueryResult $res, $outputMode ) {
// Can be viewed as HTML if requested, no more parsing needed
$this->isHTML = $outputMode == SMW_OUTPUT_HTML;
$link = $this->getLink(
$res,
$outputMode
);
return $link->getText( $outputMode, $this->mLinker );
}
private function getCsv( Csv $csv, $res ) {
$sep = str_replace( '_', ' ', $this->params['sep'] );
$vsep = str_replace( '_', ' ', $this->params['valuesep'] );
$header = [];
$rows = [];
if ( $this->mShowHeaders ) {
foreach ( $res->getPrintRequests() as $pr ) {
$header[] = $pr->getLabel();
}
}
while ( $row = $res->getNext() ) {
$row_items = [];
foreach ( $row as /* SMWResultArray */ $field ) {
$growing = [];
while ( ( $object = $field->getNextDataValue() ) !== false ) {
$growing[] = Sanitizer::decodeCharReferences( $object->getWikiValue() );
}
$row_items[] = implode( $vsep, $growing );
}
$rows[] = $row_items;
}
if ( $this->params['merge'] === true ) {
$rows = $csv->merge( $rows, $vsep );
}
return $csv->toString(
$header,
$rows,
$sep
);
}
}
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