| Index: trunk/extensions/SemanticMediaWiki/includes/sparql/SMW_SparqlDatabase4Store.php |
| — | — | @@ -0,0 +1,44 @@ |
| | 2 | +<?php |
| | 3 | +/** |
| | 4 | + * 4Store specific adjustments for SMWSparqlDatabase |
| | 5 | + * |
| | 6 | + * @file |
| | 7 | + * @ingroup SMWSparql |
| | 8 | + * |
| | 9 | + * @author Markus Krötzsch |
| | 10 | + */ |
| | 11 | + |
| | 12 | +/** |
| | 13 | + * Specific modifications of the SPARQL database implementation for 4Store. |
| | 14 | + * |
| | 15 | + * @ingroup SMWSparql |
| | 16 | + * |
| | 17 | + * @author Markus Krötzsch |
| | 18 | + */ |
| | 19 | +class SMWSparqlDatabase4Store extends SMWSparqlDatabase { |
| | 20 | + |
| | 21 | + /** |
| | 22 | + * ASK wrapper. |
| | 23 | + * "ASK" is buggy in 4Store and must be avoided. |
| | 24 | + * |
| | 25 | + * @note This does not avoid the 4Store bug: all SPARQL queries are |
| | 26 | + * potentially answered incorrectly by 4Store v.1.1.2. Nothing we can |
| | 27 | + * do. |
| | 28 | + * |
| | 29 | + * @see SMWSparqlDatabase::ask |
| | 30 | + * @param $where string WHERE part of the query, without surrounding { } |
| | 31 | + * @param $extraNamespaces array (associative) of namespaceId => namespaceUri |
| | 32 | + * @return SMWSparqlResultWrapper |
| | 33 | + */ |
| | 34 | + public function ask( $where, $extraNamespaces = array() ) { |
| | 35 | + $sparql = self::getPrefixString( $extraNamespaces ) . "SELECT * WHERE {\n" . $where . "\n} LIMIT 1"; |
| | 36 | + $result = $this->doQuery( $sparql ); |
| | 37 | + if ( $result->numRows() > 0 ) { |
| | 38 | + $expLiteral = new SMWExpLiteral( 'true', 'http://www.w3.org/2001/XMLSchema#boolean' ); |
| | 39 | + } else { |
| | 40 | + $expLiteral = new SMWExpLiteral( 'false', 'http://www.w3.org/2001/XMLSchema#boolean' ); |
| | 41 | + } |
| | 42 | + return new SMWSparqlResultWrapper( array( '' => 0 ), array( array( $expLiteral ) ) ); |
| | 43 | + } |
| | 44 | + |
| | 45 | +} |
| \ No newline at end of file |
| Property changes on: trunk/extensions/SemanticMediaWiki/includes/sparql/SMW_SparqlDatabase4Store.php |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| 1 | 46 | + native |
| Index: trunk/extensions/SemanticMediaWiki/includes/SMW_Setup.php |
| — | — | @@ -198,6 +198,7 @@ |
| 199 | 199 | $wgAutoloadClasses['SMWRecordFieldDescription'] = $smwgIP . 'includes/SMW_Record_Descriptions.php'; |
| 200 | 200 | |
| 201 | 201 | $wgAutoloadClasses['SMWSparqlDatabase'] = $smwgIP . 'includes/sparql/SMW_SparqlDatabase.php'; |
| | 202 | + $wgAutoloadClasses['SMWSparqlDatabase4Store'] = $smwgIP . 'includes/sparql/SMW_SparqlDatabase4Store.php'; |
| 202 | 203 | $wgAutoloadClasses['SMWSparqlDatabaseError'] = $smwgIP . 'includes/sparql/SMW_SparqlDatabase.php'; |
| 203 | 204 | $wgAutoloadClasses['SMWSparqlResultWrapper'] = $smwgIP . 'includes/sparql/SMW_SparqlResultWrapper.php'; |
| 204 | 205 | $wgAutoloadClasses['SMWSparqlResultParser'] = $smwgIP . 'includes/sparql/SMW_SparqlResultParser.php'; |
| — | — | @@ -221,6 +222,7 @@ |
| 222 | 223 | $wgAutoloadClasses['SMWSQLStore2Table'] = $stoDir . 'SMW_SQLStore2Table.php'; |
| 223 | 224 | $wgAutoloadClasses['SMWSQLHelpers'] = $stoDir . 'SMW_SQLHelpers.php'; |
| 224 | 225 | $wgAutoloadClasses['SMWSparqlStore'] = $stoDir . 'SMW_SparqlStore.php'; |
| | 226 | + $wgAutoloadClasses['SMWSparqlBuilder'] = $stoDir . 'SMW_SparqlBuilder.php'; |
| 225 | 227 | |
| 226 | 228 | // To ensure SMW remains compatible with pre 1.16. |
| 227 | 229 | if ( !class_exists( 'Html' ) ) { |