aardbei/app/helpers/groups_helpe...

module GroupsHelper
  def require_membership!
    return unless require_login!

    unless @group.is_member?(current_person) || current_person.is_admin?
      flash_message(:danger, I18n.t('groups.membership_required'))
      redirect_to dashboard_home_path
    end
  end

  def require_leader!
    return unless require_login!

    unless @group.is_leader?(current_person) ||
           current_person.is_admin?
      flash_message(:danger, I18n.t('groups.leadership_required'))
      redirect_to dashboard_home_path
    end
  end
end