module Roleable extend ActiveSupport::Concern included do scope :admins, -> { where(admin: true) } scope :moderators, -> { where(moderator: true) } scope :staff, -> { where("moderator or admin ") } end # any user that is either a moderator or an admin def staff? admin || moderator end def regular? !staff? end def grant_moderation! set_permission('moderator', true) end def revoke_moderation! set_permission('moderator', false) end def grant_admin! set_permission('admin', true) end def revoke_admin! set_permission('admin', false) end def save_and_refresh_staff_groups! transaction do self.save! Group.refresh_automatic_groups!(:admins, :moderators, :staff) end end def set_permission(permission_name, value) self.send("#{permission_name}=", value) save_and_refresh_staff_groups! end end