Add throwaway full-text search feature in a dedicated Database class

- Add explicit return type to UserDefinedChannels->current() to help IDE auto-completion
This commit is contained in:
Hypolite Petovan 2024-01-16 22:24:52 -05:00
parent 2e5046f8c3
commit 1191024609
2 changed files with 65 additions and 0 deletions

View file

@ -21,6 +21,12 @@
namespace Friendica\Content\Conversation\Collection;
use Friendica\Content\Conversation\Entity;
class UserDefinedChannels extends Timelines
{
public function current(): Entity\UserDefinedChannel
{
return parent::current();
}
}

View file

@ -0,0 +1,59 @@
<?php
/**
* @copyright Copyright (C) 2010-2024, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Database;
/**
* Full-text search on a haystack string that isn't present in the database.
* The haystack is inserted in a temporary table with a FULLTEXT index, then any number of
* matches can be performed on it before the row is deleted when the class instance is destroyed,
* either manually or at the end of the script at the latest.
*/
class DisposableFullTextSearch
{
private Database $db;
private int $identifier;
public function __construct(Database $database, string $haystack)
{
$this->db = $database;
// Maximum value is indicated by the INT UNSIGNED type of the check-full-text-search.pid field
$this->identifier = random_int(0, pow(2, 32) - 1);
$this->db->insert('check-full-text-search', ['pid' => $this->identifier, 'searchtext' => $haystack], Database::INSERT_UPDATE);
}
public function __destruct()
{
$this->db->delete('check-full-text-search', ['pid' => $this->identifier]);
}
/**
* @param string $needle Boolean mode search string
* @return bool
* @throws \Exception
*/
public function match(string $needle): bool
{
return $this->db->exists('check-full-text-search', ["`pid` = ? AND MATCH (`searchtext`) AGAINST (? IN BOOLEAN MODE)", $this->identifier, $needle]);
}
}