无法在 Tinker 中使用 Laravel 工厂

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',]),
        ];
    }
}

修补匠内部

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

它抛出一个错误：

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

Answer 1

经过 documentation of Model Factory 之后，Laravel 8 版本 发生了重大变化。

在 Laravel 8 中的任何地方使用模型工厂：

在模型内部，我们需要导入 Illuminate\Database\Eloquent\Factories\HasFactory trait
实施工厂的新命令

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

Answer 2

在Laravel 8.x release notes:

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

全局 factory() 函数已从 Laravel 8 开始删除。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;

    // ...
}

这样使用：

$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方法将它们持久化到数据库：

$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Laravel8.x内为上一代模型工厂提供支持，你可以使用laravel/legacy-factories包。

Answer 3

在 laravel 8 中删除了默认路由命名空间。

尝试更改命令

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

至

\App\Models\Item::factory()->create(); 
\App\Models\Item::factory(10)->create(); \If you want to create specify number of record then

无法在 Tinker 中使用 Laravel 工厂

Unable to use Laravel Factory in Tinker

php

laravel

tinker

laravel-8