问卷调查结果导出功能

app/controllers/poll_controller.rb

@@ -1,8 +1,8 @@
 class PollController < ApplicationController
-  before_filter :find_poll_and_course, :only => [:edit,:update,:destroy,:show,:statistics_result,:create_poll_question,:commit_poll,:commit_answer,:publish_poll,:republish_poll,:poll_result,:close_poll]
+  before_filter :find_poll_and_course, :only => [:edit,:update,:destroy,:show,:statistics_result,:create_poll_question,:commit_poll,:commit_answer,:publish_poll,:republish_poll,:poll_result,:close_poll,:export_poll]
   before_filter :find_container, :only => [:new,:create, :index]
   before_filter :is_member_of_course, :only => [:index,:show,:poll_result]
-  before_filter :is_course_teacher, :only => [:new,:create,:edit,:update,:destroy,:publish_poll,:republish_poll,:close_poll]
+  before_filter :is_course_teacher, :only => [:new,:create,:edit,:update,:destroy,:publish_poll,:republish_poll,:close_poll,:export_poll]
   include PollHelper
   def index
     if @course
@@ -360,6 +360,17 @@ class PollController < ApplicationController
     end
   end
 
+  #导出问卷
+  def export_poll
+    poll_questions = @poll.poll_questions
+    respond_to do |format|
+      format.xls {
+        send_data(poll_to_xls(poll_questions), :type => "text/excel;charset=utf-8; header=present",
+                  :filename => "#{@poll.polls_name}.xls")
+      }
+    end
+  end
+
   private
   def find_poll_and_course
     @poll = Poll.find params[:id]
@@ -438,4 +449,41 @@ class PollController < ApplicationController
     end
     pu
   end
+
+  #将poll中题目转换为Excel
+  def poll_to_xls poll_questions
+    xls_report = StringIO.new
+    book = Spreadsheet::Workbook.new
+    sheet1 = book.create_worksheet :name => "poll"
+    blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
+    count_row = 0
+    poll_questions.each do |poll_question|
+      if poll_question.question_type == 1 || poll_question.question_type == 2
+        sheet1.row(count_row).default_format = blue
+        sheet1[count_row,0]= l(:label_poll_question_num,:num => poll_question.question_number)
+        sheet1[count_row + 1,0] = l(:label_poll_subtotal)
+        sheet1[count_row + 2,0] = l(:label_poll_proportion)
+        poll_question.poll_answers.each_with_index do |poll_answer,i|
+          sheet1[count_row, i + 1] = poll_answer.answer_text
+          sheet1[count_row + 1, i + 1] = poll_answer.poll_votes.count
+          sheet1[count_row + 2, i + 1] = statistics_result_percentage(poll_answer.poll_votes.count, total_answer(poll_question.id)).to_s + "%"
+        end
+        sheet1[count_row + 3,0] = l(:label_poll_valid_commit)
+        sheet1[count_row + 3,1] = total_answer(poll_question.id)
+        count_row += 5
+      else
+        sheet1.row(count_row).default_format = blue
+        sheet1[count_row,0] = l(:label_poll_question_num,:num => poll_question.question_number)
+        sheet1[count_row,1] = poll_question.question_title
+        count_row += 1
+        poll_question.poll_votes.each do |poll_vote|
+          sheet1[count_row,0] = poll_vote.vote_text
+          count_row += 1
+        end
+        count_row += 1
+      end
+    end
+    book.write xls_report
+    xls_report.string
+  end
 end

app/views/poll/_poll.html.erb

@@ -25,6 +25,8 @@
 
   <%= link_to(l(:button_delete), poll,:method => :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "polls_de fr ml5 mr10")  %>
 
+  <li><%= link_to "导出", export_poll_poll_path(poll.id,:format => "xls"), :class => "polls_de fr ml5"%></li>
+
   <% if poll.polls_status == 1 %>
       <li><%= link_to l(:button_edit), edit_poll_path(poll.id), :class => "polls_de fr ml5"%></li>
   <% else%>

config/locales/zh.yml

@@ -1936,6 +1936,7 @@ zh:
   label_poll_description: 问卷描述
   label_poll_options: 选项
   label_poll_subtotal: 小计
+  label_poll_question_num: "第%{num}题"
   label_poll_proportion: 比例
   label_poll_valid_commit: 本题有效填写人次
   label_poll_result: 问卷调查_问卷统计

config/routes.rb

@@ -70,6 +70,7 @@ RedmineApp::Application.routes.draw do
       get 'republish_poll'
       get 'poll_result'
       get 'close_poll'
+      get 'export_poll'
     end
     collection do
       delete 'delete_poll_question'