streamline-emr/docker/streamline-src/database/seeders/VolatileLiquidAnaestheticsTableSeeder.php

<?php
namespace Database\Seeders;

use Illuminate\Database\Seeder;
use Streamline\Models\VolatileLiquidAnaesthetics;

class VolatileLiquidAnaestheticsTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $liquids = ['Halothane', 'Isoflurane', 'Sevoflurane', 'Desflurane'];

        foreach ($liquids as $liquid):
            VolatileLiquidAnaesthetics::firstOrCreate([
                "name" => $liquid
            ]);
        endforeach;
    }
}