学生是否看到问卷结果老师可配置增加数据库

app/controllers/poll_controller.rb

@@ -47,6 +47,7 @@ class PollController < ApplicationController
           :user_id => User.current.id,
           :published_at => Time.now,
           :closed_at => Time.now,
+          :show_result => 1,
           :polls_description => ""
       }
       @poll = Poll.create option

db/migrate/20150123020615_add_show_result.rb

@@ -0,0 +1,9 @@
+class AddShowResult < ActiveRecord::Migration
+  def up
+    add_column :polls, :show_result, :integer, default: 1
+  end
+
+  def down
+    remove_column :polls, :show_result
+  end
+end