---

function validateGroupPortal() {
    var toPortal = $('#group_to_portal').prop('checked');
    var chatIdx = $('#group_chat_idx').val().trim();

    if (toPortal && chatIdx.length === 0) {
        mainTableChangeAction.disable();
    } else {
        mainTableChangeAction.enable();
    }
}




let clickGroupToPortal = function () {
    if ($('#group_to_portal').prop('checked')) {
        $('#group_container_chat_idx').show();
    } else {
        $('#group_container_chat_idx').hide();
    }

    validateGroupPortal();
}




$('#group_chat_idx').on('input', validateGroupPortal);




data.chat_idx = $('#group_to_portal').prop('checked')
    ? $('#group_chat_idx').val().trim()
    : null;