def invites(self, value):
roles = IRolePermissionManager(self.__parent__)
for val, role in [('member', 'group.Member'),
('manager', 'group.Manager')]:
if val in value:
roles.grantPermissionToRole('zojax.InviteGroupMember', role)
else:
roles.unsetPermissionFromRole('zojax.InviteGroupMember', role)
