php - 无法在 Tinker 中使用 Laravel Factory

Question

我无法在 Laravel Tinker 中使用模型工厂。
//ItemFactory.php

class ItemFactory extends Factory
{
    /**
     * The name of the factory's corresponding model.
     *
     * @var string
     */
    protected $model = Item::class;

    /**
     * Define the model's default state.
     *
     * @return array
     */
    public function definition()
    {
        return [
            'name' => $this->faker->name,
            'slug' => $this->faker->slug(5, true),
            'code' => $this->faker->words(5, true),
            'description' => $this->faker->sentence,
            'price' => $this->faker->randomNumber(1000, 10000),
            'size' => $this->faker->randomElement(['Small', 'Medium', 'Large',]),
        ];
    }
}

内部修补匠

>>> factory(App\Item::class)->create();

它给我一个错误:

PHP Fatal error: Call to undefined function factory() in Psy Shellcode on line 1

Answer 1

在 Laravel 8.x 中 release notes :

Eloquent model factories have been entirely re-written as class basedfactories and improved to have first-class relationship support.

全局 factory()从 Laravel 8 开始删除函数。相反，您现在应该使用 model factory classes .

创建工厂:

php artisan make:factory ItemFactory --model=Item

确保 Illuminate\Database\Eloquent\Factories\HasFactory特征已导入您的模型:

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Item extends Model
{
    use HasFactory;

    // ...
}

像这样使用它:

$item = Item::factory()->make(); // Create a single App\Models\Item instance

// or

$items = Item::factory()->count(3)->make(); // Create three App\Models\Item instances

使用 create将它们持久化到数据库的方法:

$item = Item::factory()->create(); // Create a single App\Models\Item instance and persist to the database

// or

$items = Item::factory()->count(3)->create(); // Create three App\Models\Item instances and persist to the database

话虽如此，如果你还想在 Laravel 8.x 中为上一代模型工厂提供支持，可以使用 laravel/legacy-factories包裹。