RailwayTwo/database/seeds/NotificationSeeder.php

<?php

use Illuminate\Database\Seeder;

class NotificationSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $user = \App\User::first();
        $order = \App\Models\Order::first();
        \App\Models\Notification::truncate();
        $total = 100;
        for($i = 0; $i < $total; ++$i) {
            $type = mt_rand(1, 2);
            $status = $type == 1 ? mt_rand(1, 5) : mt_rand(1, 7);
            $is_read = mt_rand(1, 2);
            \App\Models\Notification::create([
                'user_id' => $user->id,
                'order_id' => $order->id,
                'type' => $type,
                'status' => $status,
                'is_read' => $is_read
            ]);
        }
    }
}