Getting an error when trying to run seed in laravel - laravel

Question

I'm using [Nwidart][1] module package and I'm trying to create a seeder using a factory. But when I try to run php artisan db:seed I get this error
Call to undefined function Modules\Products\Database\Seeders\factory()
Here is my ProductsDatabaseSeeder.php
<?php
namespace Modules\Products\Database\Seeders;
use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
use Modules\Products\Models\Product;
class ProductsDatabaseSeeder extends Seeder
{
/**
* Run the database seeds.
*
* #return void
*/
public function run()
{
Model::unguard();
factory(Product::class, 10)->create();
}
}
My ProductFactory
<?php
/** #var \Illuminate\Database\Eloquent\Factory $factory */
use Faker\Generator as Faker;
use Modules\Products\Models\Product;
$factory->define(Product::class, function (Faker $faker) {
return [
'title' => $this->faker->title,
'price' => $this->faker->randomNumber(3),
];
});
My Product.php
<?php
namespace Modules\Products\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
use HasFactory;
protected $fillable = [];
}
Full error
Call to undefined function Modules\Products\Database\Seeders\factory()
at Modules/Products/Database/Seeders/ProductsDatabaseSeeder.php:25
21▕
22▕
23▕
24▕
➜ 25▕ $product = factory(Product::class, 10)->create();
26▕
27▕
28▕ }
29▕ }
+8 vendor frames
9 database/seeders/DatabaseSeeder.php:20
Illuminate\Database\Seeder::call()
+24 vendor frames
34 artisan:37
Illuminate\Foundation\Console\Kernel::handle()
This is what I get after changing
factory(Product::class, 10)->create();
to
Product::factory()->count(10)->create();
Class 'Database\Factories\Modules\Products\Models\ProductFactory' not found
at vendor/laravel/framework/src/Illuminate/Database/Eloquent/Factories/Factory.php:656
652▕ public static function factoryForModel(string $modelName)
653▕ {
654▕ $factory = static::resolveFactoryName($modelName);
655▕
➜ 656▕ return $factory::new();
657▕ }
658▕
659▕ /**
660▕ * Specify the callback that should be invoked to guess factory names based on dynamic relationship names.
+1 vendor frames
2 Modules/Products/Database/Seeders/ProductsDatabaseSeeder.php:25
Modules\Products\Models\Product::factory()
+8 vendor frames
11 database/seeders/DatabaseSeeder.php:21
Illuminate\Database\Seeder::call()
[1]: https://nwidart.com/laravel-modules/v6/introduction

Answer 1

As of Laravel 8 which is what you probably use - as you are using the HasFactory trait - you will need to call
Product::factory()->create()
In order to run the factory
https://laracasts.com/discuss/channels/code-review/please-help-call-to-undefined-function-factory?signup

Answer 2

Apart from adding the HasFactory trait to your model, in order to support the Modules{Module} namespace you need to put this in your model:
/**
* Create a new factory instance for the model.
*
* #return \Illuminate\Database\Eloquent\Factories\Factory
*/
protected static function newFactory()
{
return \Modules\Module\Database\Factories\ModelFactory::new();
}
So, in your model Product.php
<?php
namespace Modules\Products\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Product extends Model
{
use HasFactory;
/**
* Create a new factory instance for the model.
*
* #return \Illuminate\Database\Eloquent\Factories\Factory
*/
protected static function newFactory()
{
return \Modules\Products\Database\Factories\ProductFactory::new();
}
protected $fillable = [];
}
Also, since laravel 8 the conventions of using a factory has changed.
So, in your
ProductsDatabaseSeeder.php
<?php
namespace Modules\Products\Database\Seeders;
use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
use Modules\Products\Models\Product;
class ProductsDatabaseSeeder extends Seeder
{
/**
* Run the database seeds.
*
* #return void
*/
public function run()
{
Model::unguard();
Product::factory()->count(50)->create();
}
}
And, finally the factory class ProductFactory.php like
<?php
namespace Modules\Products\Database\Factories;
use Illuminate\Database\Eloquent\Factories\Factory;
use Modules\Products\Models\Product;
class ProductFactory extends Factory
{
protected $model = Product::class;
public function definition()
{
return [
'title' => $this->faker->title,
'price' => $this->faker->randomNumber(3),
];
}
}