/**
  * Run the database seeds.
  *
  * @return void
  */
 public function run()
 {
     $faker = Faker\Factory::create();
     foreach (range(1, 100) as $index) {
         DB::table('books')->insert(['title' => $faker->word(), 'preview' => $faker->sentence(), 'author_id' => \App\Models\Author::orderByRaw("RAND()")->first()->id, 'created_at' => Carbon\Carbon::now(), 'updated_at' => Carbon\Carbon::now()]);
     }
 }