laravel - 如何使用Laravel Scout和ElasticSearch设置增强和过滤器？

我正在与Laravel Scout和Elasticsearch建立搜索集成。我试图弄清楚如何优化查询以提高效率。

是否可以使用Laravel Scout做到这一点，还是我需要直接回到使用ElasticSearch PHP库？

最佳答案

实际上，可以使用自定义Scout Engine轻松完成。

例如，我们将其称为ElasticqueryEngine，并从默认的ElasticsearchEngine扩展它:

<?php

namespace App\Libs\Scout\Engines;

use Laravel\Scout\Builder;
use Laravel\Scout\Engines\ElasticsearchEngine;

class ElasticqueryEngine extends ElasticsearchEngine
{
    /**
     * Perform the given search on the engine.
     *
     * @param  Builder  $query
     * @param  array  $options
     * @return mixed
     */
    protected function performSearch(Builder $query, array $options = [])
    {
        if (!is_array($query->query)) {
            return parent::performSearch($query, $options);
        }

        $searchQuery = [
            'index' => $this->index,
            'type' => $query->model->searchableAs(),
            'body' => [
                'query' => $query->query,
            ],
        ];

        if (array_key_exists('size', $options)) {
            $searchQuery = array_merge($searchQuery, [
                'size' => $options['size'],
            ]);
        }
        if (array_key_exists('from', $options)) {
            $searchQuery = array_merge($searchQuery, [
                'from' => $options['from'],
            ]);
        }
        return $this->elasticsearch->search($searchQuery);
    }
}

添加新的服务提供者以注册新的ElasticqueryEngine(或在任何现有的服务提供者中执行此操作):

<?php

namespace App\Providers;

use Laravel\Scout\EngineManager;
use Illuminate\Support\ServiceProvider;
use Elasticsearch\ClientBuilder as Elasticsearch;
use App\Libs\Scout\Engines\ElasticqueryEngine;

class ElasticqueryServiceProvider extends ServiceProvider
{
    /**
     * Perform post-registration booting of services.
     *
     * @return void
     */
    public function boot()
    {
        resolve(EngineManager::class)->extend('elasticquery', function () {
            return new ElasticqueryEngine(
                Elasticsearch::fromConfig(config('scout.elasticsearch.config')),
                config('scout.elasticsearch.index')
            );
        });
    }

    /**
     * Register bindings in the container.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}

不要忘记在config/app.php中添加新的服务提供商:

'providers' => [
    // ...
    Laravel\Scout\ScoutServiceProvider::class,
    App\Providers\ElasticqueryServiceProvider::class,
],

并在config/scout.php或.env中将驱动程序更改为“elasticquery”(SCOUT_DRIVER = elasticquery)

毕竟，您可以通过https://www.elastic.co/guide/en/elasticsearch/reference/current/full-text-queries.html中的任何查询进行搜索:

$query = [
    'simple_query_string' => [
        'query' => 'findme',
        'fields' => [
            'title^5',
            'description',
        ],
    ],
];
$posts = Posts::search($query)->get();

// also you can use default ElasticsearchEngine query
$posts = Posts::search('findme')->where('user_id', 1)->get();

关于laravel - 如何使用Laravel Scout和ElasticSearch设置增强和过滤器？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/39541603/