在 Laravel 8 中调用未定义的函数 factory()

Question

我有两个工厂在这里：

CourseFactory.php：

protected $model = Course::class;

public function definition()
    {
        return [
            'title' => $this->faker->sentence(),
            'body' => $this->faker->paragraph(5),
            'price' => $this->faker->numberBetween(1000,10000),
            'image' => $this->faker->imageUrl(),
        ];
    }

还有EpisodeFactory.php：

protected $model = Episode::class;

public function definition()
    {
        return [
            'title' => $this->faker->sentence(),
            'body' => $this->faker->paragraph(5),
            'videoUrl' => 'https://www.quirksmode.org/html5/videos/big_buck_bunny.mp4',
        ];
    }

然后在 DatabaseSeeder.php：

public function run()
    {
        $user = factory(App\Models\User::class)->create();
        factory(\App\Models\Course::class , 5)->create(['user_id' => $user->id ])->each(function ($course) {
            factory(\App\Models\Episode::class, rand(6 , 20))->make()->each(function ($episode , $key) use ($course){
                $episode->number = $key +1;
                $course->episodes()->save($episode);
            });
        });
    }

但是当我想运行php artisan db:seed时，我得到了这个错误：

调用未定义函数 Database\Seeders\factory()

在 C:\Users\POUYA\Desktop_MACOSX\laravel-api\database\seeders\DatabaseSeeder.php

错误信息是指这一行：

$user = factory(App\Models\User::class)->create();

意思是我没有正确使用factory。

那么如何正确调用factory呢？

非常感谢你们的任何想法或建议......

提前致谢。

UserFactory.php：

protected $model = User::class;

public function definition()
    {
        return [
            'name' => $this->faker->name(),
            'email' => $this->faker->unique()->safeEmail(),
            'email_verified_at' => now(),
            'password' => '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', // password
            'remember_token' => Str::random(10),
        ];
    }

Answer 1

在 laravel 8 中，调用工厂的方式发生了变化。请看changelog

这是now的称呼方式

因此，在您的情况下，将您的代码更改为：

public function run()
    {
        $user = \App\Models\User::factory()->create();
        \App\Models\Course::factory()->count(5)->create(['user_id' => $user->id ])->each(function ($course) {
            \App\Models\Episode::factory()->count(rand(6 , 20))->make()->each(function ($episode , $key) use ($course){
                $episode->number = $key +1;
                $course->episodes()->save($episode);
            });
        });
    }