#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# http://www.gnu.org/copyleft/gpl.html
/**
- * Search engine hook base class for MySQL.
- * Specific bits for MySQL 3 and 4 variants are in child classes.
- * @package MediaWiki
- * @subpackage Search
+ * Search engine hook for MySQL 4+
+ * @addtogroup Search
*/
+class SearchMySQL extends SearchEngine {
+ var $strictMatching = true;
+
+ /** @todo document */
+ function __construct( $db ) {
+ $this->db = $db;
+ }
-/** */
-require_once( 'SearchEngine.php' );
+ /** @todo document */
+ function parseQuery( $filteredText, $fulltext ) {
+ global $wgContLang;
+ $lc = SearchEngine::legalSearchChars(); // Minus format chars
+ $searchon = '';
+ $this->searchTerms = array();
+
+ # FIXME: This doesn't handle parenthetical expressions.
+ $m = array();
+ if( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
+ $filteredText, $m, PREG_SET_ORDER ) ) {
+ foreach( $m as $terms ) {
+ if( $searchon !== '' ) $searchon .= ' ';
+ if( $this->strictMatching && ($terms[1] == '') ) {
+ $terms[1] = '+';
+ }
+ $searchon .= $terms[1] . $wgContLang->stripForSearch( $terms[2] );
+ if( !empty( $terms[3] ) ) {
+ // Match individual terms in result highlighting...
+ $regexp = preg_quote( $terms[3], '/' );
+ if( $terms[4] ) $regexp .= "[0-9A-Za-z_]+";
+ } else {
+ // Match the quoted term in result highlighting...
+ $regexp = preg_quote( str_replace( '"', '', $terms[2] ), '/' );
+ }
+ $this->searchTerms[] = $regexp;
+ }
+ wfDebug( "Would search with '$searchon'\n" );
+ wfDebug( 'Match with /' . implode( '|', $this->searchTerms ) . "/\n" );
+ } else {
+ wfDebug( "Can't understand search query '{$filteredText}'\n" );
+ }
+
+ $searchon = $this->db->strencode( $searchon );
+ $field = $this->getIndexField( $fulltext );
+ return " MATCH($field) AGAINST('$searchon' IN BOOLEAN MODE) ";
+ }
+
+ public static function legalSearchChars() {
+ return "\"*" . parent::legalSearchChars();
+ }
-/** @package MediaWiki */
-class SearchMySQL extends SearchEngine {
/**
* Perform a full text search query and return a result set.
*
$resultSet = $this->db->resultObject( $this->db->query( $this->getQuery( $this->filter( $term ), false ) ) );
return new MySQLSearchResultSet( $resultSet, $this->searchTerms );
}
-
-
+
+
/**
* Return a partial WHERE clause to exclude redirects, if so set
* @return string
- * @access private
+ * @private
*/
function queryRedirect() {
if( $this->showRedirects ) {
return 'AND page_is_redirect=0';
}
}
-
+
/**
* Return a partial WHERE clause to limit the search to the given namespaces
* @return string
- * @access private
+ * @private
*/
function queryNamespaces() {
+ if( is_null($this->namespaces) )
+ return ''; # search all
$namespaces = implode( ',', $this->namespaces );
if ($namespaces == '') {
$namespaces = '0';
}
return 'AND page_namespace IN (' . $namespaces . ')';
}
-
+
/**
* Return a LIMIT clause to limit results on the query.
* @return string
- * @access private
+ * @private
*/
function queryLimit() {
return $this->db->limitResult( '', $this->limit, $this->offset );
* Does not do anything for generic search engine
* subclasses may define this though
* @return string
- * @access private
+ * @private
*/
function queryRanking( $filteredTerm, $fulltext ) {
return '';
}
-
+
/**
* Construct the full SQL query to do the search.
* The guts shoulds be constructed in queryMain()
* @param string $filteredTerm
* @param bool $fulltext
- * @access private
+ * @private
*/
function getQuery( $filteredTerm, $fulltext ) {
return $this->queryMain( $filteredTerm, $fulltext ) . ' ' .
* @param string $filteredTerm
* @param bool $fulltext
* @return string
- * @access private
+ * @private
*/
function queryMain( $filteredTerm, $fulltext ) {
$match = $this->parseQuery( $filteredTerm, $fulltext );
* @param string $text
*/
function update( $id, $title, $text ) {
- $dbw=& wfGetDB( DB_MASTER );
+ $dbw = wfGetDB( DB_MASTER );
$dbw->replace( 'searchindex',
array( 'si_page' ),
array(
'si_page' => $id,
'si_title' => $title,
'si_text' => $text
- ), 'SearchMySQL4::update' );
+ ), __METHOD__ );
}
/**
* @param string $title
*/
function updateTitle( $id, $title ) {
- $dbw =& wfGetDB( DB_MASTER );
-
+ $dbw = wfGetDB( DB_MASTER );
+
$dbw->update( 'searchindex',
array( 'si_title' => $title ),
array( 'si_page' => $id ),
- 'SearchMySQL4::updateTitle',
+ __METHOD__,
array( $dbw->lowPriorityOption() ) );
}
}
-/** @package MediaWiki */
+/**
+ * @addtogroup Search
+ */
class MySQLSearchResultSet extends SearchResultSet {
function MySQLSearchResultSet( $resultSet, $terms ) {
$this->mResultSet = $resultSet;
$this->mTerms = $terms;
}
-
+
function termMatches() {
return $this->mTerms;
}
-
+
function numRows() {
return $this->mResultSet->numRows();
}
-
+
function next() {
$row = $this->mResultSet->fetchObject();
if( $row === false ) {
return new SearchResult( $row );
}
}
-}
-?>
+ function free() {
+ $this->mResultSet->free();
+ }
+}
dépôts / lhc / web / wiklou.git / blobdiff