universal_table/app/views/admin/universal_tables/_period_field.html.erb

<div class="control-group ut-control-group">
  <div class="control-group ut-control-group-col">
    <%= f.label :period_from, column.title, :class => "control-label" %>
    <div class="controls">
      <div>
        <div class="default_picker input-append" style="">
            <% v = !period_field.new_record? ? format_date(period_field.period_from, column.date_format, true) : "" %>
            <%= f.text_field :period_from, :value => v, :placeholder => column.date_format.upcase, :data => {:format => (column.date_format == "yyyy" ? "yyyy/MM" : column.date_format)}, :class => "input-small" %>
            <span class="add-on clearDate"><i class="icons-cross-3"></i></span>
            <span class="add-on iconbtn"><i data-date-icon="icons-calendar" data-time-icon="icons-clock" class="icons-calendar"></i></span>
        </div>
      </div>
    </div>
  </div>
  <div class="control-group ut-control-group-col ut-control-group-col-right">
    <%= f.label :period_to, "~", :class => "control-label" %>
    <div class="controls">
      <div>
        <div class="default_picker input-append" style="">
            <% v = !period_field.new_record? ? format_date(period_field.period_to, column.date_format, true) : "" %>
            <%= f.text_field :period_to,:value => v, :placeholder => column.date_format.upcase, :data => {:format => (column.date_format == "yyyy" ? "yyyy/MM" : column.date_format)}, :class => "input-small" %>
            <span class="add-on clearDate"><i class="icons-cross-3"></i></span>
            <span class="add-on iconbtn"><i data-date-icon="icons-calendar" data-time-icon="icons-clock" class="icons-calendar"></i></span>
        </div>
      </div>
    </div>
  </div>
  <% if !period_field.new_record? %>
    <%= f.hidden_field :id %>
  <% else %>
    <%= f.hidden_field :table_column_id, :value => column.id %>
  <% end %>

</div>