SemanticMediaWiki/includes/parserhooks/SMW_Declare.php

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<?php

class SMWDeclare {
        
        public static function render( Parser &$parser, PPFrame $frame, array $args ) {
                if ( $frame->isTemplate() ) {
                        foreach ( $args as $arg )
                                if ( trim( $arg ) !== '' ) {
                                        $expanded = trim( $frame->expand( $arg ) );
                                        $parts = explode( '=', $expanded, 2 );

                                        if ( count( $parts ) == 1 ) {
                                                $propertystring = $expanded;
                                                $argumentname = $expanded;
                                        } else {
                                                $propertystring = $parts[0];
                                                $argumentname = $parts[1];
                                        }

                                        $property = SMWPropertyValue::makeUserProperty( $propertystring );
                                        $argument = $frame->getArgument( $argumentname );
                                        $valuestring = $frame->expand( $argument );

                                        if ( $property->isValid() ) {
                                                $type = $property->getPropertyTypeID();

                                                if ( $type == '_wpg' ) {
                                                        $matches = array();
                                                        preg_match_all( '/\[\[([^\[\]]*)\]\]/u', $valuestring, $matches );
                                                        $objects = $matches[1];

                                                        if ( count( $objects ) == 0 ) {
                                                                if ( trim( $valuestring ) !== '' ) {
                                                                        SMWParseData::addProperty( $propertystring, $valuestring, false, $parser, true );
                                                                }
                                                        } else {
                                                                foreach ( $objects as $object ) {
                                                                        SMWParseData::addProperty( $propertystring, $object, false, $parser, true );
                                                                }
                                                        }
                                                } elseif ( trim( $valuestring ) !== '' ) {
                                                                SMWParseData::addProperty( $propertystring, $valuestring, false, $parser, true );
                                                }

                                                // $value = SMWDataValueFactory::newPropertyObjectValue( $property->getDataItem(), $valuestring );
                                                // if (!$value->isValid()) continue;
                                        }
                                }
                } else {
                        // @todo Save as metadata
                }

                global $wgTitle;
                if ( !is_null( $wgTitle ) && $wgTitle->isSpecialPage() ) {
                        global $wgOut;
                        SMWOutputs::commitToOutputPage( $wgOut );
                }
                else {
                        SMWOutputs::commitToParser( $parser );
                }
                
                return '';              
        }
        
}

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