Laravel 4 permissions

so this is basically the sql model I got so far:

This is how it would look in my user controller (stackoverflow formatting):

if (Auth::user()->is('admin'))
                    {
                            if (Auth::user()->can('delete'))
                            {
                                    echo 'hurra!';
                            }
                    }

      

        
        
        
      

    

The permission keys will probably look like this:

admin.delete maybe something like user.can.buy

And now I want to know if this is good as I do it in methods:

public function is($roleName)
        {
                $role = $this->roles;

                if ($role->name == $roleName)
                {
                        return true;
                }

                return false;
        }

      

        
        
        
      

    

I think this one is good

BUT

public function can($permissionKey)
        {
                $permissions = $this->roles->permissions()
                        ->where('key', $permissionKey)
                        ->count();

                if ($permissions > 0)
                {
                        return true;
                }

                return false;
        }

      

        
        
        
      

    

looks awkward to me. Am I choosing the right data with eloquent orm?

Thanks in advance!