survey/app/views/admin/surveys/answer_sets.html.erb

<style type="text/css">
  #survey_answer_search label{
    float: left;
    margin-right: 0.5em;
    line-height: 2;
  }
  #survey_answer_search input{
    float: left;
    line-height: 2;
  }
</style>
<script type="text/javascript" src="/assets/lib/process.manager.js"></script>
<div id="downloadModal" data-backdrop="static" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="downloadModalLabel" aria-hidden="true">
  <div class="modal-header">
    <h3 id="downloadModalLabel">Download</h3>
  </div>
  <div class="modal-body">
    <p id="wait-zone" style="text-align: center;">
      Please wait while we prepare your download. This may take a while.
      <br />
      <img src="/assets/spin.gif" />
    </p>
    <p id="link-zone" style="display: none; text-align: center;">
      Please click the link below to download.
      <br />
      <a href="" id="download-link" target="_blank">Download</a>
    </p>
  </div>
  <div class="modal-footer">
    <button class="btn" id="modal-close-btn" style="display:none;" data-dismiss="modal" aria-hidden="true">Close</button>
  </div>
</div>
<h3><%= @survey.title %></h3>
<div>
  <% if @is_answer_list %>
    <h4><%=t('survey.taken_by')%>: <%=@user.member_name rescue "NA" %></h4>
  <% else %>
    <form id="survey_answer_search">
      <div>
        <label for="search_taken_by"><%=t('survey.taken_by')%>:</label>
        <input type="text" id="search_taken_by" name="search" placeholder="<%=t('survey.taken_by')%>" value="<%=params[:search]%>">
        <input type="submit" value="<%=t(:search_)%>">
      </div>
      <div style="clear: both;"></div>
    </form>
  <% end %>
</div>
<table class="table main-list">
  <thead>
    <tr class="sort-header">
      <% @table_fields.each do |f| %>
      	<%= thead(f) %>
      <% end %>
    </tr>
  </thead>
  <tbody>
  <% (@survey_answer_groups || @survey_answers).each do |sa| %>
  	<tr>
  	<% user = sa.user.nil? ? nil : (User.find(sa.user) rescue nil) %>
  	<% if !user.nil? %>
		<td><%= user.member_name rescue user.name %></td>
  	<% else %>
  		<td>NA</td>
  	<% end %>
  	<td><%= (@is_answer_list ? sa.updated_at : sa.last_modified).strftime("%h %d, %Y  -  %H:%M") rescue nil %></td>
  	<td>
      <% if @answer_repeat && !@is_answer_list %>
        <a class="btn btn-primary" href="/admin/surveys/<%= sa.id.to_s %>/answer_list"><%= t("survey.view") %>(<%=sa.survey_answer_ids.count%>)</a>
        <button class="btn btn-primary export-xls" data-href="/admin/surveys/<%= sa.id.to_s %>/export_answers"><%= t("survey.export") %></button>
      <% else %>
        <a class="btn btn-primary" href="/admin/surveys/<%= @is_answer_list ? sa.id : sa.survey_answer_ids.last.to_s %>/answer_set"><%= t("survey.view_answers") %></a>
      <% end %>
    </td>
  	</tr>
  <% end %>
  </tbody>
  </table>
  <%=
  content_tag :div, class: "bottomnav clearfix" do
    content_tag :div, paginate((@survey_answer_groups || @survey_answers)), class: "pagination pagination-centered"
  end
%>
<script type="text/javascript">

  var downloadModal = $("#downloadModal"),
    checkForThread = null,
    waitZone = $("#wait-zone"),
    linkZone = $("#link-zone"),
    downloadLink = $("a#download-link"),
    modalBtn = $("#modal-close-btn"),
    processManager = new ProcessManager();

  $(document).on("click", ".export-xls", function(){
    var link = $(this).data("href"),
        title = null,
        id = "<%=@survey.id%>";
    
    linkZone.hide();    
    waitZone.show();
    modalBtn.hide();
    $.ajax({
      url : link,
      type : "get",
      dataType : "json"
    }).done(function(data){
      title = data.title;
      checkForThread = new Process(function(){
        $.ajax({
          url : "/admin/surveys/checkforthread",
          type : "get",
          data : {"survey_id" : id, "survey_title" : title},
          dataType : "json"
        }).done(function(data){
          if(!data.status){
            downloadLink.attr("href", "/uploads/survey_export/" + id + "/" + title + ".xlsx");
            waitZone.hide();
            linkZone.show();
            modalBtn.show();
            checkForThread.kill();
          }
        })
      })
      checkForThread.setTimeInterval(1000);
      checkForThread.setRepeat(Process.CONSTANTS.REPEAT_INFINITE);
      processManager.queue(checkForThread);
    })
    downloadModal.modal("show");
    return false;
  })

</script>