streamline-emr/docker/_streamline-src/database/seeders/BloodGroupsSeeder.php

<?php
namespace Database\Seeders;

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

class BloodGroupsSeeder extends Seeder {

    /**
     * Run the database seeders.
     *
     * @return void
     */
    public function run() {
        $blood_groups = [
            'A Pos',
            'A Neg',
            'AB Pos',
            'AB Neg',
            'B Pos',
            'B Neg',
            'O Pos',
            'O Neg',
            'Unknown'
        ];

        foreach ($blood_groups as $value) {
            BloodGroup::firstOrCreate([
                'name' => $value
            ]);
        }
    }

}