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<?php |
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namespace ApacheSolrForTypo3\Solr\Domain\Search\LastSearches; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2010-2017 dkd Internet Service GmbH <[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 3 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 ApacheSolrForTypo3\Solr\System\Records\AbstractRepository; |
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class LastSearchesRepository extends AbstractRepository |
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{ |
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/** |
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* @var string |
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*/ |
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protected $table = 'tx_solr_last_searches'; |
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/** |
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* Finds the last searched keywords from the database |
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* |
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* @param int $limit |
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* @return array An array containing the last searches of the current user |
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*/ |
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public function findAllKeywords($limit = 10) : array |
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{ |
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$lastSearchesResultSet = $this->getLastSearchesResultSet($limit); |
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if (empty($lastSearchesResultSet)) { |
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return []; |
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} |
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$lastSearches = []; |
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foreach ($lastSearchesResultSet as $row) { |
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$lastSearches[] = html_entity_decode($row['keywords'], ENT_QUOTES, 'UTF-8'); |
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} |
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return $lastSearches; |
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} |
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/** |
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* Returns all last searches |
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* |
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* @param $limit |
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* @return array |
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*/ |
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protected function getLastSearchesResultSet($limit) : array |
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{ |
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$queryBuilder = $this->getQueryBuilder(); |
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return $queryBuilder |
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->select('keywords') |
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->addSelectLiteral( |
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$queryBuilder->expr()->max('tstamp','maxtstamp') |
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) |
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->from($this->table) |
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// There is no support for DISTINCT, a ->groupBy() has to be used instead. |
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->groupBy('keywords') |
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->orderBy('maxtstamp', 'DESC') |
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->setMaxResults($limit)->execute()->fetchAll(); |
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} |
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/** |
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* Adds keywords to last searches or updates the oldest row by given limit. |
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* |
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* @param string $lastSearchesKeywords |
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* @param int $lastSearchesLimit |
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* @return void |
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*/ |
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public function add(string $lastSearchesKeywords, int $lastSearchesLimit) |
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{ |
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$nextSequenceId = $this->resolveNextSequenceIdForGivenLimit($lastSearchesLimit); |
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$rowsCount = $this->count(); |
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if ($nextSequenceId < $rowsCount) { |
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$this->update([ |
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'sequence_id' => $nextSequenceId, |
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'keywords' => $lastSearchesKeywords |
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]); |
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return; |
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} |
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$queryBuilder = $this->getQueryBuilder(); |
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$queryBuilder |
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->insert($this->table) |
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->values([ |
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'sequence_id' => $nextSequenceId, |
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'keywords' => $lastSearchesKeywords, |
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'tstamp' => time() |
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]) |
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->execute(); |
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} |
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/** |
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* Resolves next sequence id by given last searches limit. |
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* |
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* @param int $lastSearchesLimit |
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* @return int |
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*/ |
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protected function resolveNextSequenceIdForGivenLimit(int $lastSearchesLimit) : int |
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{ |
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$nextSequenceId = 0; |
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$queryBuilder = $this->getQueryBuilder(); |
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$result = $queryBuilder->select('sequence_id') |
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->from($this->table) |
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->orderBy('tstamp', 'DESC') |
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->setMaxResults(1) |
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->execute()->fetch(); |
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if (!empty($result)) { |
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$nextSequenceId = ($result['sequence_id'] + 1) % $lastSearchesLimit; |
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} |
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return $nextSequenceId; |
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} |
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/** |
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* Updates last searches row by using sequence_id from given $lastSearchesRow array |
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* |
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* @param array $lastSearchesRow |
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* @return void |
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* @throws \InvalidArgumentException |
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*/ |
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protected function update(array $lastSearchesRow) |
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{ |
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$queryBuilder = $this->getQueryBuilder(); |
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$affectedRows = $queryBuilder |
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->update($this->table) |
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->where( |
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$queryBuilder->expr()->eq('sequence_id', $queryBuilder->createNamedParameter($lastSearchesRow['sequence_id'])) |
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) |
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->set('tstamp', time()) |
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->set('keywords', $lastSearchesRow['keywords']) |
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->execute(); |
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if ($affectedRows < 1) { |
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throw new \InvalidArgumentException(vsprintf('By trying to update last searches row with values "%s" nothing was updated, make sure the given "sequence_id" exists in database.', [\json_encode($lastSearchesRow)]), 1502717923); |
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} |
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} |
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} |
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TYPO3-Solr /
ext-solr
