private PrettyForm getPrettyForm(String uuid_calendar) {
        List<PrettyForm> returnPf = this.jdbcTemplate.query(SQL_GET_PRETTY_BY_CAL_ID, new Object[]{UUID.fromString(uuid_calendar)}, new RowMapper<PrettyForm>() {
            @Override
            public PrettyForm mapRow(ResultSet rs, int rowNum) throws SQLException {
                final PrettyForm prettyForm = new PrettyForm();
                prettyForm.setDates(rs.getString("startdate"), rs.getString("enddate"));
                prettyForm.setDays(rs.getString("Days"));
                prettyForm.setRepeat(rs.getString("repeatinterval"));
                prettyForm.setTimes(rs.getString("starttime"), rs.getString("endtime"));
                return prettyForm;
            }
        });

        if (returnPf.isEmpty()) {
            return null;
        } else if (returnPf.size() == 1) {
            return returnPf.get(0);
        } else {
            // TODO this is an issue !
            return null;
        }
    }