ask/app/views/admin/asks/setting.html.erb

<%
  set_input_name('ask_setting[custom_fields]')
%>
<style type="text/css">
  thead td {
    text-align: center;
    color: blueviolet;
  }
  .add_new_options,.prompt_word,.time_setting_block{
    display: none;
  }
  .add_new_options.active,.prompt_word.active,.time_setting_block.active{
    display: block;
  }
  tr td {
    text-align: center;
  }
  tr.custom_field td:nth-child(1){
    text-align: left;
  }
  td{
    padding: 0.5em;
  }
  .tab-content{
    display: none;
  }
  .tab-content.active{
    display: block;
  }
  .tab-panel{
    display: flex;
    flex-wrap: wrap;
  }
  tr.custom_field {
    border: 0.1em solid #8e00ff;
  }
  tr.custom_field > td >div {
    padding: 0.5em 0;
  }
  input[type=text] {
    height: 30px;
  }
</style>
<script type="text/javascript">
  <%
    option_multi_lang_tag = multiple_lang_tag(-1,'text_field','options][-2',nil,{placeholder: t('ask.option_name')},create_delete_button('delete_added_select_option').html_safe+hidden_field_tag("ask_setting[custom_fields][-1][options][-2][disabled]",nil,{'class' => 'disabled_field'}))
  %>
  function check_available_setting_block(ele){
    var tmp = $(ele).val()
    var parent_div = $(ele).parents('.custom_field').eq(0)
    if (tmp != 'date' && tmp != 'radio_button' && tmp!='checkbox'){
      parent_div.find('.prompt_word').addClass('active')
    }else{
      parent_div.find('.prompt_word').removeClass('active')
    }
    if (tmp == 'select' || tmp == 'radio_button' || tmp=='checkbox'){
      parent_div.find('.add_new_options').addClass('active')
    }else{
      parent_div.find('.add_new_options').removeClass('active')
    }
    if (tmp == 'date'){
      parent_div.find('.time_setting_block').addClass('active')
    }else{
      parent_div.find('.time_setting_block').removeClass('active')
    }
  }
  function delete_field_func(ele){
    $(ele).parents('tr').remove()
    var all_delete_field = $('.delete_field').val()
    all_delete_field = all_delete_field + ',' + $(ele).parents('tr').find('.key').val()
    $('.delete_field').val(all_delete_field)
  }
  function add_new_options_for_field(ele,key){
    var add_html = "<%= option_multi_lang_tag.inspect %>"
    add_html = add_html.replace(/-1/g,key)
    var parent_div = $(ele).parents('.add_new_options')
    var tab_panel =  parent_div.eq(0).find('.tab-panel')
    var tab_panel_length = tab_panel.length
    add_html = add_html.replace(/-2/g,tab_panel_length)
    parent_div.find('input[type="button"]').eq(-1).before($('<div/>').html(add_html).text().slice(1,-2))
  }
  function delete_added_select_option(ele){
    var parent_div = $(ele).parents('.tab-panel')
    parent_div.find('.disabled_field').val('true')
    parent_div.hide()
  }
  function add_new_field(){
    $.ajax({
      url : "<%= get_new_setting_index_admin_asks_path %>",
      dataType : "json",
      type : "post",
      error: function(){
        alert('init process failed, please try again later.')
      },
      success: function(data){
        var add_field_html = "<%= custom_field_block(-1).inspect %>"
        add_field_html = add_field_html.replace(/-1/g,data['key'])
        $('.add_field').before($('<div/>').html(add_field_html).text().slice(1,-2))
      }
    })
  }
</script>
<%= form_for @ask_setting,method: 'post',url:  @url,html: { class: 'form-horizontal main-forms previewable' } do |f| %>
  <fieldset>
    <table>
      <thead>
        <tr>
          <td>
            <%= t('ask.field') %>
          </td>
          <td>
            <%= t('ask.whether_open') %>
          </td>
        </tr>
      </thead>
      <tbody>
        <% @ask_setting.default_setting.each do |k,v| %>
          <tr>
            <td>
              <%= t("mongoid.attributes.ask_question.#{k}") %>
            </td>
            <td>
              <%= f.select "default_setting[#{k}]",[[t('yes'),'true'],[t('no'),false]] ,selected: v  %>
            </td>
          </tr>
        <% end %>
        <% @ask_setting.custom_fields.each do |k,v| %>
          <%= custom_field_block(k,v).html_safe %>
        <% end %>
        <tr class="add_field">
          <td colspan="2" style="text-align: center;">
            <input class="btn btn-info" type="button" value="<%= t('add')%>" onclick="add_new_field()">
          </td>
        </tr>
        <tr>
          <td colspan="2" style="text-align: center;">
            <%= hidden_field_tag :delete_field, nil,{'class'=> 'delete_field' } %>
            <%= f.hidden_field :id, value: @ask_setting.id %>
            <input class="btn btn-primary" type="submit" value="<%= t('submit')%>">
          </td>
        </tr>
      </tbody>
    </table>
  </fieldset>
<% end %>