Question

以下是我的模型工厂。

$factory->define(App\Business::class, function (Faker\Generator $faker){
return [
'name' => $faker->bs,
'slug' => $faker->slug,
'address' => $faker->streetAddress,
'phone_no' => $faker->phoneNumber,
'mobile_no' => $faker->phoneNumber,
'email' => $faker->companyEmail,
'website' => $faker->domainName,
'latitude' => $faker->latitude,
'longitude' => $faker->longitude,
'location' => $faker->city,
'business_days_from' => $faker->dayOfWeek,
'business_days_to' => $faker->dayOfWeek,
'description' => $faker->text,
'user_id' => $faker->factory(App\User::class),
];

}）;

和我的数据库播种器类

class DatabaseSeeder extends Seeder
{
    public function run()
    {
        factory(App\Business::class, 300)->create();
    }
}

但是当我执行 php artisan db：seed 时......它不起作用..

这里的解决方法应该是什么......任何帮助都将受到赞赏..

Answer 1

您可以使用pluck获取所有ID（lists已针对laravel＆gt; = 5.2进行了展示）

$userIds = User::all()->pluck('id')->toArray();

获取FK列的随机ID：

'user_id' => $faker->randomElement($userIds)

您还可以使用工厂定义中的Closure属性将关系附加到模型。

    'title' => $faker->title,
    'content' => $faker->paragraph,
    'user_id' => function () {
        return factory(App\User::class)->create()->id;
    }

Answer 2

我刚刚找到了解决方法..我替换了

'user_id' => $faker->factory(App\User::class),

与

'user_id' => $faker->randomElement(User::lists('id')->toArray()),

现在解决了这个问题..

使用Faker为数据库播种时如何维护外键？

2 个答案: