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<?php |
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namespace ApacheSolrForTypo3\Solr\Domain\Search\Query\ParameterBuilder; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2017 <[email protected]> |
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* All rights reserved |
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* |
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* This script is part of the TYPO3 project. The TYPO3 project is |
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* free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* The GNU General Public License can be found at |
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* http://www.gnu.org/copyleft/gpl.html. |
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* |
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* This script is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* This copyright notice MUST APPEAR in all copies of the script! |
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***************************************************************/ |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* The QueryFields class holds all information for the query which fields should be used to query (Solr qf parameter). |
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* |
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* @package ApacheSolrForTypo3\Solr\Domain\Search\Query\ParameterBuilder |
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*/ |
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class QueryFields implements ParameterBuilder |
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{ |
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/** |
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* @var array |
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*/ |
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protected $queryFields = []; |
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/** |
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* QueryFields constructor. |
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* |
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* private constructor should only be created with the from* methods |
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* |
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* @param array $queryFields |
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*/ |
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private function __construct(array $queryFields) |
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{ |
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$this->queryFields = $queryFields; |
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} |
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/** |
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* @param string $fieldName |
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* @param float $boost |
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*/ |
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public function set($fieldName, $boost = 1.0) |
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{ |
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$this->queryFields[$fieldName] = (float)$boost; |
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} |
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/** |
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* @return array |
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*/ |
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public function build() |
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{ |
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$string = $this->toString(); |
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// return empty array on empty string |
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return trim($string) === '' ? [] : ['qf' => $string]; |
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} |
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/** |
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* Creates the string representation |
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* |
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* @param string $delimiter |
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* @return string |
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*/ |
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public function toString($delimiter = ' ') { |
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$queryFieldString = ''; |
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foreach ($this->queryFields as $fieldName => $fieldBoost) { |
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$queryFieldString .= $fieldName; |
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if ($fieldBoost != 1.0) { |
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$queryFieldString .= '^' . number_format($fieldBoost, 1, '.', ''); |
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} |
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$queryFieldString .= $delimiter; |
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} |
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return rtrim($queryFieldString, $delimiter); |
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} |
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/** |
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* Parses the string representation of the queryFields (e.g. content^100, title^10) to the object representation. |
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* |
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* @param string $queryFieldsString |
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* @param string $delimiter |
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* @return QueryFields |
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*/ |
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public static function fromString($queryFieldsString, $delimiter = ',') { |
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$fields = GeneralUtility::trimExplode($delimiter, $queryFieldsString, true); |
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$queryFields = []; |
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foreach ($fields as $field) { |
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$fieldNameAndBoost = explode('^', $field); |
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$boost = 1.0; |
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if (isset($fieldNameAndBoost[1])) { |
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$boost = floatval($fieldNameAndBoost[1]); |
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} |
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$fieldName = $fieldNameAndBoost[0]; |
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$queryFields[$fieldName] = $boost; |
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} |
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return new QueryFields($queryFields); |
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} |
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} |
timohund /
ext-solr
