Laravel: seeding tables other than Users - laravel

Question

UPDATE: I am going to include my full file replacing the partial view I had. The seeder for the User table works, but the one for the Groups table does not. I do have those tables produced by Sentry but I only created a Model for Groups that has nothing in it other than the declaration of the class. Don't know what else to include.
<?php
class DatabaseSeeder extends Seeder {
/**
* Run the database seeds.
*
* #return void
*/
public function run()
{
Eloquent::unguard();
//User::create(array('email' => 'foo#bar.com'));
// $this->call('UserTableSeeder');
$this->command->info('User table seeded!');
}
}
class UserTableSeeder extends Seeder {
public function run()
{
User::create(array(
'username' => 'alvaro',
'permissions' =>'{"user":1}'
));
$this->command->info('User table seeded!');
}
}
class GroupTableSeeder extends Seeder {
public function run()
{
Group::create(array(
'name' => 'usuario',
'permissions' =>'{"user":1}'
));
$this->command->info('Group table seeded!');
}
}
But actually, the one I want is the Groups tables (I am on Sentry). Yes, I have created the Model for Group, as Group.php but I don't know how to define its contents. Sometimes I have seen on other occasions that it suffices with just defining the class, but here I dont know, it doesn't work that easily.
Just doing something like
class GroupTableSeeder extends Seeder
will not work as it says that such class does not exist.

Answer 1

The only thing I needed to do was to create a separate file having that name GroupTableSeeder.php
and include the code in there. For some reason, while UserTableSeeder can be inside a file called DatabaseSeeder and it works, it does not work for other tables.
class GroupTableSeeder extends Seeder {
public function run()
{
Group::create(array(
'name' => 'basicuser',
'permissions' =>'{"user.create" :-1,"user.delete" :-1,"user.view":1,"user.update":-1,"post.create":1}'
));
$this->command->info('Group table seeded!');
}
}