app/views/cases/_worker.html.erb
<legend><strong>Client Biodata</strong></legend>
<div class="row">
<div class='col-md-6'>
<%= ff.input :nationality, required: true do %>
<div class='row'>
<div class='col-xs-5'><%= select_tag :nationality_selector, options_for_select(['Philippines', 'Indonesia', 'Myanmar', 'Cambodia', 'India', 'Bangladesh', 'Sri Lanka', 'China', 'Others']), class: 'form-control' %></div>
<div class='col-xs-7'><%= ff.input :nationality, wrapper: false, error: false, label: false, placeholder: 'For e.g Philippines' %></div>
</div>
<%- end %>
</div>
<%= ff.input :fin_number, label: 'FIN Number', wrapper_html: { class: "col-md-3" } %>
<%= ff.input :wp_number, label: 'WP Number', wrapper_html: { class: "col-md-3" } %>
</div>
<div class="row">
<%= ff.input :passport_number, wrapper_html: { class: "col-md-6" } %>
<%= ff.input :pass_type, wrapper_html: { class: "col-md-6" } %>
</div>
<div class="row">
<%= ff.input :date_of_arrival, label: 'Date of Arrival to Singapore', as: :string, input_html: { class: 'datepicker' }, wrapper_html: { class: "col-md-4" } %>
<%= ff.input :start_of_employment, as: :string, input_html: { class: 'datepicker' }, wrapper_html: { class: "col-md-4" } %>
<%= ff.input :days_off, label: 'Days off per month', wrapper_html: { class: "col-md-4" } %>
</div>
<div class="row">
<%= ff.input :previous_employers_details, label: "Previous Employers' Details", wrapper_html: { class: "col-md-6" } %>
</div>