def roles_for_members
      can :create, Note
      can [:update, :destroy, :read], Note, user_id: user.id
      can :read, Note, publish: true
      basic_read_only
    end
def roles_for_members
      can :create, Note
      can [:update, :destroy, :read], Note, user_id: user.id
      can :read, Note, publish: true
      basic_read_only
    end
普通会员权限