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<?php
namespace SMW\SQLStore\QueryEngine\Fulltext;
use SMW\MediaWiki\Database;
/**
* @license GNU GPL v2+
* @since 2.5
*
* @author mwjames
*/
class SearchTableUpdater {
/**
* @var Database
*/
private $connection;
/**
* @var SearchTable
*/
private $searchTable;
/**
* @var TextSanitizer
*/
private $textSanitizer;
/**
* @since 2.5
*
* @param Database $connection
* @param SearchTable $searchTable
* @param TextSanitizer $textSanitizer
*/
public function __construct( Database $connection, SearchTable $searchTable, TextSanitizer $textSanitizer ) {
$this->connection = $connection;
$this->searchTable = $searchTable;
$this->textSanitizer = $textSanitizer;
}
/**
* @since 2.5
*
* @return SearchTable
*/
public function getSearchTable() {
return $this->searchTable;
}
/**
* @since 2.5
*
* @return boolean
*/
public function isEnabled() {
return $this->searchTable->isEnabled();
}
/**
* @since 2.5
*
* @return array
*/
public function getPropertyTables() {
return $this->searchTable->getPropertyTables();
}
/**
* @see http://dev.mysql.com/doc/refman/5.7/en/fulltext-fine-tuning.html
* @see http://dev.mysql.com/doc/refman/5.7/en/optimize-table.html
*
* "Running OPTIMIZE TABLE on a table with a full-text index rebuilds the
* full-text index, removing deleted Document IDs and consolidating multiple
* entries for the same word, where possible."
*
* @since 2.5
*
* @return boolean
*/
public function optimize() {
if ( !$this->connection->isType( 'mysql' ) ) {
return false;
}
$this->connection->query(
"OPTIMIZE TABLE " . $this->searchTable->getTableName(),
__METHOD__
);
return true;
}
/**
* @since 2.5
*
* @param integer $sid
* @param integer $pid
*
* @return boolean
*/
public function exists( $sid, $pid ) {
$row = $this->connection->selectRow(
$this->searchTable->getTableName(),
[ 's_id' ],
[
's_id' => (int)$sid,
'p_id' => (int)$pid
],
__METHOD__
);
return $row !== false;
}
/**
* @since 2.5
*
* @param integer $sid
* @param integer $pid
*
* @return false|string
*/
public function read( $sid, $pid ) {
$row = $this->connection->selectRow(
$this->searchTable->getTableName(),
[ 'o_text' ],
[
's_id' => (int)$sid,
'p_id' => (int)$pid
],
__METHOD__
);
if ( $row === false ) {
return false;
}
return $this->textSanitizer->sanitize( $row->o_text );
}
/**
* @since 2.5
*
* @param integer $sid
* @param integer $pid
* @param string $text
*/
public function update( $sid, $pid, $text ) {
if ( trim( $text ) === '' || ( $indexableText = $this->textSanitizer->sanitize( $text ) ) === '' ) {
return $this->delete( $sid, $pid );
}
$this->connection->update(
$this->searchTable->getTableName(),
[
'o_text' => $indexableText,
'o_sort' => mb_substr( $text, 0, 32 )
],
[
's_id' => (int)$sid,
'p_id' => (int)$pid
],
__METHOD__
);
}
/**
* @since 2.5
*
* @param integer $sid
* @param integer $pid
*/
public function insert( $sid, $pid ) {
$this->connection->insert(
$this->searchTable->getTableName(),
[
's_id' => (int)$sid,
'p_id' => (int)$pid,
'o_text' => ''
],
__METHOD__
);
}
/**
* @since 2.5
*
* @param integer $sid
* @param integer $pid
*/
public function delete( $sid, $pid ) {
$this->connection->delete(
$this->searchTable->getTableName(),
[
's_id' => (int)$sid,
'p_id' => (int)$pid
],
__METHOD__
);
}
/**
* @since 2.5
*/
public function flushTable() {
$this->connection->delete(
$this->searchTable->getTableName(),
'*',
__METHOD__
);
}
}
|
