LaravelSeedIgnoreExistingDataSeeder.md

Problem

I have some data that I have in a config file or array that I need to make sure all of that data is in laravel. This is how I accomplish it using firstOfCreate(). In my problem I had a config file with arrays of roles, data types, and permissions, and the latter needed to be merged but it should not create it if it already exists.

LaravelSeedIgnoreExistingDataSeeder.php

<?php

use Illuminate\Database\Seeder;

/**
 * Class LocationTableSeeder.
 */
class PermissionTableSeeder extends Seeder
{
    use DisableForeignKeys;

    /**
     * Run the database seed.
     *
     * @return void
     */
    public function run()
    {
        $this->disableForeignKeys();
        
        // Create the missing Roles
        foreach(config('access.user-roles') as $role) {
            Role::firstOrCreate(
                [ 'name' => $role ]
            );
        }
        
        // Create the the combined permissions.
        foreach (config('access.permissions.model') as $model) {
            foreach (config('access.permissions.types') as $type) {
                Permission::firstOrCreate(
                    [ 'name' => strtolower($type) . '-' . strtolower($model) ]
                );
            }
        }

        $this->enableForeignKeys();
    }
}