Fix bug.

app/views/admin/cancerpredicts/_export_cancer_tool_record.xlsx.axlsx

@@ -1,7 +1,8 @@
 # encoding: utf-8
 
 wb = xlsx_package.workbook
-wb.add_worksheet(name: "school_class") do |sheet|
+wb.add_worksheet(name: "cancer_tool") do |sheet|
+  if !@results[0].nil?
   row = []
   title = sheet.styles.add_style(:bg_color => "FFFF00",:border=>{ :style => :thin, :color => "666666" },:alignment=>{ :horizontal => :center,:vertical => :center ,:wrap_text => true})
   column = sheet.styles.add_style(:alignment=>{ :horizontal => :center,:vertical => :center ,:wrap_text => true},:border=>{ :style => :thin, :color => "666666" })
@@ -33,4 +34,5 @@ wb.add_worksheet(name: "school_class") do |sheet|
   export_data_rows.each do |infos_row|
 	sheet.add_row infos_row , :style=> column
   end
+  end
 end

app/views/admin/cancerpredicts/showSubmit.html.erb

@@ -1,14 +1,13 @@
 <link href="/assets/admin/cancerpredict.css" media="print" rel="stylesheet">
 <link href="/assets/admin/cancerpredict.css" media="screen" rel="stylesheet">
+<% if !@results[0].nil? %>
 <table>
 	<thead>
 		<tr>
-		<% if !@results[0].nil? %>
 			<th><%=((I18n.locale=="en") ? 'submit time' : '提交時間') %></th>
 			<% @results[0].names.each do |key,name|%>
 				<th><%=name[I18n.locale.to_s].to_s.html_safe %></th>
 			<%end%>
-		<%end%>
 		</tr>
 	</thead>
 	<tbody>
@@ -44,6 +43,7 @@
 <%end%>
 </tbody>
 </table>
+<% end %>
 <%=@pagination.html_safe%>
 <style type="text/css">
 	thead > tr > th{