* Oracle search engine
*
* Copyright © 2004 Brion Vibber <brion@pobox.com>
- * http://www.mediawiki.org/
+ * https://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Search engine hook base class for Oracle (ConText).
* @ingroup Search
*/
-class SearchOracle extends SearchEngine {
-
- private $reservedWords = array ('ABOUT' => 1,
- 'ACCUM' => 1,
- 'AND' => 1,
- 'BT' => 1,
- 'BTG' => 1,
- 'BTI' => 1,
- 'BTP' => 1,
- 'FUZZY' => 1,
- 'HASPATH' => 1,
- 'INPATH' => 1,
- 'MINUS' => 1,
- 'NEAR' => 1,
- 'NOT' => 1,
- 'NT' => 1,
- 'NTG' => 1,
- 'NTI' => 1,
- 'NTP' => 1,
- 'OR' => 1,
- 'PT' => 1,
- 'RT' => 1,
- 'SQE' => 1,
- 'SYN' => 1,
- 'TR' => 1,
- 'TRSYN' => 1,
- 'TT' => 1,
- 'WITHIN' => 1);
-
- /**
- * Creates an instance of this class
- * @param $db DatabasePostgres: database object
- */
- function __construct($db) {
- parent::__construct( $db );
- }
+class SearchOracle extends SearchDatabase {
+ private $reservedWords = [
+ 'ABOUT' => 1,
+ 'ACCUM' => 1,
+ 'AND' => 1,
+ 'BT' => 1,
+ 'BTG' => 1,
+ 'BTI' => 1,
+ 'BTP' => 1,
+ 'FUZZY' => 1,
+ 'HASPATH' => 1,
+ 'INPATH' => 1,
+ 'MINUS' => 1,
+ 'NEAR' => 1,
+ 'NOT' => 1,
+ 'NT' => 1,
+ 'NTG' => 1,
+ 'NTI' => 1,
+ 'NTP' => 1,
+ 'OR' => 1,
+ 'PT' => 1,
+ 'RT' => 1,
+ 'SQE' => 1,
+ 'SYN' => 1,
+ 'TR' => 1,
+ 'TRSYN' => 1,
+ 'TT' => 1,
+ 'WITHIN' => 1,
+ ];
/**
* Perform a full text search query and return a result set.
*
- * @param $term String: raw search term
+ * @param string $term Raw search term
* @return SqlSearchResultSet
*/
function searchText( $term ) {
- if ($term == '')
- return new SqlSearchResultSet(false, '');
+ if ( $term == '' ) {
+ return new SqlSearchResultSet( false, '' );
+ }
- $resultSet = $this->db->resultObject($this->db->query($this->getQuery($this->filter($term), true)));
- return new SqlSearchResultSet($resultSet, $this->searchTerms);
+ $resultSet = $this->db->query( $this->getQuery( $this->filter( $term ), true ) );
+ return new SqlSearchResultSet( $resultSet, $this->searchTerms );
}
/**
* Perform a title-only search query and return a result set.
*
- * @param $term String: raw search term
+ * @param string $term Raw search term
* @return SqlSearchResultSet
*/
- function searchTitle($term) {
- if ($term == '')
- return new SqlSearchResultSet(false, '');
-
- $resultSet = $this->db->resultObject($this->db->query($this->getQuery($this->filter($term), false)));
- return new MySQLSearchResultSet($resultSet, $this->searchTerms);
- }
-
-
- /**
- * Return a partial WHERE clause to exclude redirects, if so set
- * @return String
- */
- function queryRedirect() {
- if ($this->showRedirects) {
- return '';
- } else {
- return 'AND page_is_redirect=0';
+ function searchTitle( $term ) {
+ if ( $term == '' ) {
+ return new SqlSearchResultSet( false, '' );
}
+
+ $resultSet = $this->db->query( $this->getQuery( $this->filter( $term ), false ) );
+ return new SqlSearchResultSet( $resultSet, $this->searchTerms );
}
/**
* Return a partial WHERE clause to limit the search to the given namespaces
- * @return String
+ * @return string
*/
function queryNamespaces() {
- if( is_null($this->namespaces) )
+ if ( is_null( $this->namespaces ) ) {
return '';
+ }
if ( !count( $this->namespaces ) ) {
$namespaces = '0';
} else {
/**
* Return a LIMIT clause to limit results on the query.
- * @return String
+ *
+ * @param string $sql
+ *
+ * @return string
*/
- function queryLimit($sql) {
- return $this->db->limitResult($sql, $this->limit, $this->offset);
+ function queryLimit( $sql ) {
+ return $this->db->limitResult( $sql, $this->limit, $this->offset );
}
/**
* Does not do anything for generic search engine
* subclasses may define this though
- * @return String
+ *
+ * @param string $filteredTerm
+ * @param bool $fulltext
+ * @return string
*/
- function queryRanking($filteredTerm, $fulltext) {
+ function queryRanking( $filteredTerm, $fulltext ) {
return ' ORDER BY score(1)';
}
/**
* Construct the full SQL query to do the search.
* The guts shoulds be constructed in queryMain()
- * @param $filteredTerm String
- * @param $fulltext Boolean
+ * @param string $filteredTerm
+ * @param bool $fulltext
+ * @return string
*/
function getQuery( $filteredTerm, $fulltext ) {
- return $this->queryLimit($this->queryMain($filteredTerm, $fulltext) . ' ' .
- $this->queryRedirect() . ' ' .
+ return $this->queryLimit( $this->queryMain( $filteredTerm, $fulltext ) . ' ' .
$this->queryNamespaces() . ' ' .
- $this->queryRanking( $filteredTerm, $fulltext ) . ' ');
+ $this->queryRanking( $filteredTerm, $fulltext ) . ' ' );
}
-
/**
* Picks which field to index on, depending on what type of query.
- * @param $fulltext Boolean
- * @return String
+ * @param bool $fulltext
+ * @return string
*/
- function getIndexField($fulltext) {
+ function getIndexField( $fulltext ) {
return $fulltext ? 'si_text' : 'si_title';
}
/**
* Get the base part of the search query.
*
- * @param $filteredTerm String
- * @param $fulltext Boolean
- * @return String
+ * @param string $filteredTerm
+ * @param bool $fulltext
+ * @return string
*/
function queryMain( $filteredTerm, $fulltext ) {
- $match = $this->parseQuery($filteredTerm, $fulltext);
- $page = $this->db->tableName('page');
- $searchindex = $this->db->tableName('searchindex');
+ $match = $this->parseQuery( $filteredTerm, $fulltext );
+ $page = $this->db->tableName( 'page' );
+ $searchindex = $this->db->tableName( 'searchindex' );
return 'SELECT page_id, page_namespace, page_title ' .
"FROM $page,$searchindex " .
'WHERE page_id=si_page AND ' . $match;
/**
* Parse a user input search string, and return an SQL fragment to be used
* as part of a WHERE clause
+ * @param string $filteredText
+ * @param bool $fulltext
+ * @return string
*/
- function parseQuery($filteredText, $fulltext) {
+ function parseQuery( $filteredText, $fulltext ) {
global $wgContLang;
- $lc = SearchEngine::legalSearchChars();
- $this->searchTerms = array();
+ $lc = $this->legalSearchChars( self::CHARS_NO_SYNTAX );
+ $this->searchTerms = [];
- # FIXME: This doesn't handle parenthetical expressions.
- $m = array();
+ # @todo FIXME: This doesn't handle parenthetical expressions.
+ $m = [];
$searchon = '';
- if (preg_match_all('/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
- $filteredText, $m, PREG_SET_ORDER)) {
- foreach($m as $terms) {
+ if ( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
+ $filteredText, $m, PREG_SET_ORDER ) ) {
+ foreach ( $m as $terms ) {
// Search terms in all variant forms, only
// apply on wiki with LanguageConverter
$temp_terms = $wgContLang->autoConvertToAllVariants( $terms[2] );
- if( is_array( $temp_terms )) {
- $temp_terms = array_unique( array_values( $temp_terms ));
- foreach( $temp_terms as $t ) {
- $searchon .= ($terms[1] == '-' ? ' ~' : ' & ') . $this->escapeTerm( $t );
+ if ( is_array( $temp_terms ) ) {
+ $temp_terms = array_unique( array_values( $temp_terms ) );
+ foreach ( $temp_terms as $t ) {
+ $searchon .= ( $terms[1] == '-' ? ' ~' : ' & ' ) . $this->escapeTerm( $t );
}
+ } else {
+ $searchon .= ( $terms[1] == '-' ? ' ~' : ' & ' ) . $this->escapeTerm( $terms[2] );
}
- else {
- $searchon .= ($terms[1] == '-' ? ' ~' : ' & ') . $this->escapeTerm( $terms[2] );
- }
- if (!empty($terms[3])) {
+ if ( !empty( $terms[3] ) ) {
$regexp = preg_quote( $terms[3], '/' );
- if ($terms[4])
+ if ( $terms[4] ) {
$regexp .= "[0-9A-Za-z_]+";
+ }
} else {
- $regexp = preg_quote(str_replace('"', '', $terms[2]), '/');
+ $regexp = preg_quote( str_replace( '"', '', $terms[2] ), '/' );
}
$this->searchTerms[] = $regexp;
}
}
-
- $searchon = $this->db->addQuotes(ltrim($searchon, ' &'));
- $field = $this->getIndexField($fulltext);
+ $searchon = $this->db->addQuotes( ltrim( $searchon, ' &' ) );
+ $field = $this->getIndexField( $fulltext );
return " CONTAINS($field, $searchon, 1) > 0 ";
}
- private function escapeTerm($t) {
+ private function escapeTerm( $t ) {
global $wgContLang;
- $t = $wgContLang->normalizeForSearch($t);
- $t = isset($this->reservedWords[strtoupper($t)]) ? '{'.$t.'}' : $t;
- $t = preg_replace('/^"(.*)"$/', '($1)', $t);
- $t = preg_replace('/([-&|])/', '\\\\$1', $t);
+ $t = $wgContLang->normalizeForSearch( $t );
+ $t = isset( $this->reservedWords[strtoupper( $t )] ) ? '{' . $t . '}' : $t;
+ $t = preg_replace( '/^"(.*)"$/', '($1)', $t );
+ $t = preg_replace( '/([-&|])/', '\\\\$1', $t );
return $t;
}
+
/**
* Create or update the search index record for the given page.
* Title and text should be pre-processed.
*
- * @param $id Integer
- * @param $title String
- * @param $text String
+ * @param int $id
+ * @param string $title
+ * @param string $text
*/
- function update($id, $title, $text) {
- $dbw = wfGetDB(DB_MASTER);
- $dbw->replace('searchindex',
- array('si_page'),
- array(
+ function update( $id, $title, $text ) {
+ $dbw = wfGetDB( DB_MASTER );
+ $dbw->replace( 'searchindex',
+ [ 'si_page' ],
+ [
'si_page' => $id,
'si_title' => $title,
'si_text' => $text
- ), 'SearchOracle::update' );
+ ], 'SearchOracle::update' );
// Sync the index
- // We need to specify the DB name (i.e. user/schema) here so that
+ // We need to specify the DB name (i.e. user/schema) here so that
// it can work from the installer, where
// ALTER SESSION SET CURRENT_SCHEMA = ...
// was used.
- $dbw->query( "CALL ctx_ddl.sync_index(" .
- $dbw->addQuotes( $dbw->getDBname() . '.' . trim( $dbw->tableName( 'si_text_idx' ), '"' ) ) . ")" );
- $dbw->query( "CALL ctx_ddl.sync_index(" .
- $dbw->addQuotes( $dbw->getDBname() . '.' . trim( $dbw->tableName( 'si_title_idx' ), '"' ) ) . ")" );
+ $dbw->query( "CALL ctx_ddl.sync_index(" .
+ $dbw->addQuotes( $dbw->getDBname() . '.' . $dbw->tableName( 'si_text_idx', 'raw' ) ) . ")" );
+ $dbw->query( "CALL ctx_ddl.sync_index(" .
+ $dbw->addQuotes( $dbw->getDBname() . '.' . $dbw->tableName( 'si_title_idx', 'raw' ) ) . ")" );
}
/**
* Update a search index record's title only.
* Title should be pre-processed.
*
- * @param $id Integer
- * @param $title String
+ * @param int $id
+ * @param string $title
*/
- function updateTitle($id, $title) {
- $dbw = wfGetDB(DB_MASTER);
+ function updateTitle( $id, $title ) {
+ $dbw = wfGetDB( DB_MASTER );
- $dbw->update('searchindex',
- array('si_title' => $title),
- array('si_page' => $id),
+ $dbw->update( 'searchindex',
+ [ 'si_title' => $title ],
+ [ 'si_page' => $id ],
'SearchOracle::updateTitle',
- array());
+ [] );
}
-
- public static function legalSearchChars() {
- return "\"" . parent::legalSearchChars();
+ public static function legalSearchChars( $type = self::CHARS_ALL ) {
+ $searchChars = parent::legalSearchChars( $type );
+ if ( $type === self::CHARS_ALL ) {
+ $searchChars = "\"" . $searchChars;
+ }
+ return $searchChars;
}
}
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