How to Set Up a Full-Text Search Using Scout in Laravel

This tutorial demonstrates implementing full-text search in a Laravel application using the Laravel Scout library. Scout provides a streamlined, driver-based approach to adding this crucial functionality to your Eloquent models. It automatically synchronizes your search indexes with Eloquent record changes.

Laravel Scout's primary advantage is its simplicity. This article uses Algolia, a cloud-based search engine, as the driver. However, Scout supports other drivers, and even allows for custom engine creation.

Setting up the Server:

The first step is installing the necessary dependencies using Composer:

composer require laravel/scout

Next, register the Scout service provider in config/app.php. This informs Laravel about the library's availability. We'll also configure Algolia and a lightweight database driver. For custom engine implementation, see the example below.

Custom Engine Implementation:

Creating a custom search engine involves extending Laravel's Engine class and implementing the required methods. Here's a basic example:

<?php

namespace App\Engines;

use Laravel\Scout\Builder;
use Laravel\Scout\Engines\Engine;

class CustomScoutEngine extends Engine
{
    public function update($models) {}
    public function delete($models) {}
    public function search(Builder $builder) {}
    public function paginate(Builder $builder, $perPage, $page) {}
    public function mapIds($results) {}
    public function map(Builder $builder, $results, $model) {}
    public function getTotalCount($results) {}
    public function flush($model) {}
}

Remember to implement the abstract methods according to your specific needs.

Registering the Custom Engine:

Register your custom engine within a service provider's boot method:

use App\Engines\CustomScoutEngine;
use Laravel\Scout\EngineManager;

public function boot()
{
    resolve(EngineManager::class)->extend('custom_scout_engine', function () {
        return new CustomScoutEngine;
    });
}

Finally, specify your custom engine in config/scout.php:

'driver' => 'custom_scout_engine',

Conclusion:

This guide provides a practical approach to integrating full-text search capabilities into your Laravel application using Laravel Scout. Whether you utilize the built-in Algolia driver or create a custom solution, Scout simplifies the process and enhances user experience by enabling efficient content navigation.

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