135 lines
4.8 KiB
PHP
135 lines
4.8 KiB
PHP
<?php
|
|
|
|
namespace WapplerSystems\Meilisearch\Domain\Search\Score;
|
|
|
|
/***************************************************************
|
|
* Copyright notice
|
|
*
|
|
* (c) 2010-2015 Ingo Renner <ingo.renner@dkd.de>
|
|
* All rights reserved
|
|
*
|
|
* This script is part of the TYPO3 project. The TYPO3 project is
|
|
* free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* The GNU General Public License can be found at
|
|
* http://www.gnu.org/copyleft/gpl.html.
|
|
*
|
|
* This script is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* This copyright notice MUST APPEAR in all copies of the script!
|
|
***************************************************************/
|
|
|
|
/**
|
|
* Provides the functionality to calculate scores and renders them in a minimalistic template.
|
|
*
|
|
* @author Ingo Renner <ingo.renner@gmail.com>
|
|
* @author Timo Schmidt <timo.schmidt@dkd.de>
|
|
*/
|
|
class ScoreCalculationService
|
|
{
|
|
|
|
/**
|
|
* Renders an overview of how the score for a certain document has been
|
|
* calculated.
|
|
*
|
|
* @param string $solrDebugData debug data from the solr response
|
|
* @param string $queryFields
|
|
* @return string The HTML showing the score analysis
|
|
*/
|
|
public function getRenderedScores($solrDebugData, $queryFields)
|
|
{
|
|
$highScores = $this->parseScores($solrDebugData, $queryFields);
|
|
return $this->render($highScores);
|
|
}
|
|
|
|
/**
|
|
* Renders an array of score objects into an score output.
|
|
*
|
|
* @param array $highScores
|
|
* @return string
|
|
*/
|
|
public function render(array $highScores)
|
|
{
|
|
$scores = [];
|
|
$totalScore = 0;
|
|
|
|
foreach ($highScores as $highScore) {
|
|
/** @var $highScore Score */
|
|
$scores[] = '
|
|
<td>+ ' . htmlspecialchars($highScore->getScore()) . '</td>
|
|
<td>' . htmlspecialchars($highScore->getFieldName()) . '</td>
|
|
<td>' . htmlspecialchars($highScore->getBoost()) . '</td>';
|
|
|
|
$totalScore += $highScore->getScore();
|
|
}
|
|
|
|
$content = '<table style="width: 100%; border: 1px solid #aaa; font-size: 11px; background-color: #eee;">
|
|
<tr style="border-bottom: 2px solid #aaa; font-weight: bold;"><td>Score</td><td>Field</td><td>Boost</td></tr><tr>'
|
|
. implode('</tr><tr>', $scores)
|
|
. '</tr>
|
|
<tr><td colspan="3"><hr style="border-top: 1px solid #aaa; height: 0; padding: 0; margin: 0;" /></td></tr>
|
|
<tr><td colspan="3">= ' . $totalScore . ' (Inaccurate analysis! Not all parts of the score have been taken into account.)</td></tr>
|
|
</table>';
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Parses the debugData and the queryFields into an array of score objects.
|
|
*
|
|
* @param string $debugData
|
|
* @param string $queryFields
|
|
* @return array[] array of Score
|
|
*/
|
|
public function parseScores($debugData, $queryFields)
|
|
{
|
|
$highScores = [];
|
|
|
|
/* TODO Provide better parsing
|
|
*
|
|
* parsing could be done line by line,
|
|
* * recording indentation level
|
|
* * replacing abbreviations
|
|
* * replacing phrases like "product of" by mathematical symbols (* or x)
|
|
* * ...
|
|
*/
|
|
|
|
// matches search term weights, ex: 0.42218783 = (MATCH) weight(content:iPod^40.0 in 43), product of:
|
|
$pattern = '/(.*) = weight\(([^ \)]*)/';
|
|
$scoreMatches = [];
|
|
preg_match_all($pattern, $debugData, $scoreMatches);
|
|
|
|
foreach ($scoreMatches[0] as $key => $value) {
|
|
// split field from search term
|
|
list($field, $searchTerm) = explode(':', $scoreMatches[2][$key]);
|
|
|
|
$currentScoreValue = $scoreMatches[1][$key];
|
|
|
|
$scoreWasSetForFieldBefore = isset($highScores[$field]);
|
|
$scoreIsHigher = false;
|
|
if ($scoreWasSetForFieldBefore) {
|
|
/** @var $previousScore Score */
|
|
$previousScore = $highScores[$field];
|
|
$scoreIsHigher = $previousScore->getScore() < $currentScoreValue;
|
|
}
|
|
|
|
// keep track of highest score per search term
|
|
if (!$scoreWasSetForFieldBefore || $scoreIsHigher) {
|
|
$pattern = '/' . preg_quote($field, '/') . '\^([\d.]*)/';
|
|
$boostMatches = [];
|
|
preg_match_all($pattern, $queryFields, $boostMatches);
|
|
$boost = $boostMatches[1][0];
|
|
$highScores[$field] = new Score($boost, $field, $currentScoreValue, $searchTerm);
|
|
}
|
|
}
|
|
|
|
return $highScores;
|
|
}
|
|
}
|