{% set countryId = countryId|default(form_value('country_id')) %}
{% set stateId = stateId|default(form_value('state_id')) %}

<div class="form-group">
    <label for="accountCountry">Country</label>
    {{ form_select_country('country_id', countryId, {
        id: 'accountCountry',
        class: 'form-control',
        emptyOption: '',
        'data-request': 'onInit',
        'data-request-update': {
            (__SELF__ ~ '::country-state'): '#partialCountryState'
        }
    }) }}
</div>

<div class="form-group">
    <label for="accountState">State</label>
    {{ form_select_state('state_id', countryId, stateId, {
        id: 'accountState',
        class: 'form-control',
        emptyOption: ''
    }) }}
</div>