namespace models\mongo;

class administration {

    private
    $_connection,
    $_db,
    $_users,
    $_roles;

    public function __construct() {

        $this->_connection = new \Mongo();
        $this->_db = $this->_connection->selectDB('administration');
        $this->_users = $this->_db->selectCollection('users');
        $this->_roles = $this->_db->selectCollection('roles');
        
        $this->_users->ensureIndex(
                array('name' => 1),
                array('unique' => true, 'background' => true)
        );    
        $this->_roles->ensureIndex(
                array('name' => 1),
                array('unique' => true, 'background' => true)
        );
    }

    public function getRoles($sort) {
        return iterator_to_array(
                        $this->_roles->find()->sort($sort), FALSE
        );
    }

    public function getUsers($sort) {
        return iterator_to_array(
                        $this->_users->find()->sort($sort), FALSE
        );
    }
}

namespace controllers;

class administration {

    private
    $_administrationModel;

    public function __construct() {
        $this->_administrationModel = new \models\mongo\administration ();        
    }

    public function index_get() {        
        return array(
            'users' => $this->_administrationModel->getUsers(array('name' => 1)),
            'roles' => $this->_administrationModel->getRoles(array('name' => 1))
        );
    }
}