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<?php
namespace SMW\Query\PrintRequest;
use SMW\Localizer;
use SMW\Query\PrintRequest;
/**
* @license GNU GPL v2+
* @since 2.5
*
* @author Markus Krötzsch
* @author mwjames
*/
class Serializer {
/**
* @since 2.5
*
* @param PrintRequest $printRequest
* @param boolean $showparams that sets if the serialization should include
* the extra print request parameters
*
* @return string
*/
public static function serialize( PrintRequest $printRequest, $showparams = false ) {
$parameters = '';
if ( $showparams ) {
// #2037 index is required as helper parameter during the result
// display but is not part of the original request
if ( $printRequest->getParameter( 'lang' ) ) {
$printRequest->removeParameter( 'index' );
};
foreach ( $printRequest->getParameters() as $key => $value ) {
$parameters .= "|+" . $key . "=" . $value;
}
}
switch ( $printRequest->getMode() ) {
case PrintRequest::PRINT_CATS:
return self::doSerializeCat( $printRequest, $parameters );
case PrintRequest::PRINT_CCAT:
return self::doSerializeCcat( $printRequest, $parameters );
case PrintRequest::PRINT_CHAIN:
case PrintRequest::PRINT_PROP:
return self::doSerializeProp( $printRequest, $parameters );
case PrintRequest::PRINT_THIS:
return self::doSerializeThis( $printRequest, $parameters );
default:
return '';
}
return ''; // no current serialisation
}
private static function doSerializeCat( $printRequest, $parameters ) {
$catlabel = Localizer::getInstance()->getNamespaceTextById( NS_CATEGORY );
$result = '?' . $catlabel;
if ( $printRequest->getLabel() != $catlabel ) {
$result .= '=' . $printRequest->getLabel();
}
return $result . $parameters;
}
private static function doSerializeCcat( $printRequest, $parameters ) {
$printname = $printRequest->getData()->getPrefixedText();
$result = '?' . $printname;
if ( $printRequest->getOutputFormat() != 'x' ) {
$result .= '#' . $printRequest->getOutputFormat();
}
if ( $printRequest->getLabel() != $printname ) {
$result .= '=' . $printRequest->getLabel();
}
return $result . $parameters;
}
private static function doSerializeProp( $printRequest, $parameters ) {
$printname = '';
$label = $printRequest->getLabel();
$data = $printRequest->getData();
if ( $data->isVisible() ) {
// #1564
// Use the canonical form for predefined properties to ensure
// that local representations are for display but points to
// the correct property
if ( $printRequest->isMode( PrintRequest::PRINT_CHAIN ) ) {
$printname = $data->getDataItem()->getString();
// If the preferred label and invoked label are the same
// then no additional label is required as the label is
// recognized as being available by the system
if ( $label === $data->getLastPropertyChainValue()->getDataItem()->getPreferredLabel() ) {
$label = $printname;
}
} else {
$printname = $data->getDataItem()->getCanonicalLabel();
if ( $label === $data->getDataItem()->getPreferredLabel() ) {
$label = $printname;
}
// Don't carry a localized label for a predefined property
// (fetched via the wikiValue)
if ( !$data->getDataItem()->isUserDefined() && $label === $data->getWikiValue() ) {
$label = $data->getDataItem()->getCanonicalLabel();
}
}
}
$result = '?' . $printname;
if ( $printRequest->getOutputFormat() !== '' ) {
$result .= '#' . $printRequest->getOutputFormat();
}
if ( $printname != $label && $label !== '' ) {
$result .= '=' . $label;
}
return $result . $parameters;
}
private static function doSerializeThis( $printRequest, $parameters ) {
$result = '?';
// Has leading ?#
if ( $printRequest->hasLabelMarker() ) {
$result .= '#';
}
if ( $printRequest->getLabel() !== '' ) {
$result .= '=' . $printRequest->getLabel();
}
$outputFormat = $printRequest->getOutputFormat();
if ( $outputFormat !== '' && $outputFormat !== false && $outputFormat !== null ) {
// Handle ?, ?#- vs. ?#Foo=#-
if ( $printRequest->getLabel() !== '' ) {
$result .= '#';
}
$result .= $outputFormat;
}
return $result . $parameters;
}
}
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