How to Use Laravel Factory in Seeder

Websolutionstuff | Sep-13-2023 | Categories : Laravel

Laravel is a popular PHP framework known for its elegance and simplicity in building web applications. When it comes to populating your database with sample data for testing and development, Laravel offers a powerful tool called Factory and Seeder.

In this article, we will explore how to use Laravel Factory in Seeder to efficiently generate and seed your database with realistic data. You can use in laravel 8, laravel 9, laravel 10.

Table of Contents

  1. Setting up a Laravel Project
  2. Creating a Model and Migration
  3. Generating a Factory
  4. Writing a Seeder
  5. Running the Seeder
  6. Advanced Factory and Seeder Usage
  7. Conclusion


Step 1: Setting up a Laravel Project

Before we dive into using Laravel Factory in Seeder, ensure you have a Laravel project set up. If not, you can create one using the Laravel installer.

composer global require laravel/installer
laravel new my-project
cd my-project


Step 2. Creating a Model and Migration

To start, you'll need a database table for your model. Let's assume you want to create a "users" table:

php artisan make:model User -m

This command will generate both the model (User.php) and a migration file in the database/migrations directory.


Step 3: Generating a Factory

Next, generate a Factory for your model.

php artisan make:factory UserFactory --model=User

This will create a UserFactory.php file in the database/factories directory. In this file, you can define how the sample data for the "users" table should look.

namespace Database\Factories;
use App\Models\User;
use Illuminate\Database\Eloquent\Factories\Factory;
class UserFactory extends Factory
     * The name of the factory's corresponding model.
     * @var string
    protected $model = User::class;
     * Define the model's default state.
     * @return array
    public function definition()
        return [
            'name' => $this->faker->name,
            'email' => $this->faker->unique()->safeEmail,


Step 4: Writing a Seeder

Now, let's create a Seeder to use the Factory for populating the database. Run the following command.

php artisan make:seeder UsersTableSeeder

This command will generate a UsersTableSeeder.php file in the database/seeders directory. In this seeder file, you can specify how many records you want to insert and use the Factory to generate the data.

Here's an example of a simple seeder using the UserFactory.

use Illuminate\Database\Seeder;
use App\Models\User;

class UsersTableSeeder extends Seeder
    public function run()
        User::factory(10)->create(); // Creates 10 user records using the UserFactory


Step 5: Running the Seeder

To execute the Seeder and populate your database, run the following command.

php artisan db:seed --class=UsersTableSeeder

This will trigger the run method in your UsersTableSeeder class and insert 10 user records into the "users" table.


Step 6: Advanced Factory and Seeder Usage

Laravel Factories are powerful and flexible. You can customize them to generate specific data for your application, including relationships, states, and more. For advanced usage, refer to the Laravel documentation on Factory and Seeder customization.


Step 7: Conclusion

In this guide, we've explored how to use Laravel Factory in Seeder to efficiently generate and seed your database with sample data. This practice is essential for testing and development, as it helps ensure your application behaves as expected with realistic data.


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