Pony.fm/app/Traits/IndexedInElasticsearchTrait.php
2021-02-14 19:45:51 +00:00

114 lines
3.5 KiB
PHP

<?php
/**
* Pony.fm - A community for pony fan music.
* Copyright (C) 2016 Feld0.
*
* 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 <http://www.gnu.org/licenses/>.
*/
namespace App\Traits;
use App\Contracts\Searchable;
use App\Jobs\UpdateSearchIndexForEntity;
use Illuminate\Support\Facades\Config;
use Elasticsearch;
use Elasticsearch\Common\Exceptions\Missing404Exception;
use Illuminate\Foundation\Bus\DispatchesJobs;
/**
* Class IndexedInElasticsearch.
*
* Classes using this trait must declare the `$elasticsearchType` property and
* implement the `Searchable` interface.
*/
trait IndexedInElasticsearchTrait
{
use DispatchesJobs;
// These two functions are from the Searchable interface. They're included
// here, without being implemented, to assist IDE's when editing this trait.
abstract public function toElasticsearch():array;
abstract public function shouldBeIndexed():bool;
// Laravel automatically runs this method based on the trait's name. #magic
public static function bootIndexedInElasticsearchTrait()
{
static::saved(function (Searchable $entity) {
$entity->updateElasticsearchEntry();
});
static::deleted(function (Searchable $entity) {
$entity->updateElasticsearchEntry();
});
}
/**
* @param bool $includeBody set to false when deleting documents
* @return array
*/
private function getElasticsearchParameters(bool $includeBody = true)
{
$parameters = [
'index' => config('ponyfm.elasticsearch_index'),
'type' => $this->elasticsearchType,
'id' => $this->id,
];
if ($includeBody) {
$parameters['body'] = $this->toElasticsearch();
}
return $parameters;
}
private function createOrUpdateElasticsearchEntry()
{
Elasticsearch::connection()->index($this->getElasticsearchParameters());
}
private function deleteElasticsearchEntry()
{
try {
Elasticsearch::connection()->delete($this->getElasticsearchParameters(false));
} catch (Missing404Exception $e) {
// If the entity we're trying to delete isn't indexed in Elasticsearch,
// that's fine.
}
}
/**
* Asynchronously updates the Elasticsearch entry.
* When in doubt, this is the method to use.
*/
public function updateElasticsearchEntry()
{
$job = (new UpdateSearchIndexForEntity($this))->onQueue(config('ponyfm.indexing_queue'));
$this->dispatch($job);
}
/**
* Synchronously updates the Elasticsearch entry. This should only be
* called from the UpdateSearchIndexForEntity job.
*/
public function updateElasticsearchEntrySynchronously()
{
if ($this->shouldBeIndexed()) {
$this->createOrUpdateElasticsearchEntry();
} else {
$this->deleteElasticsearchEntry();
}
}
}