将autologin默认过期时间改为两个月

app/models/token.rb

@@ -32,6 +32,8 @@ class Token < ActiveRecord::Base
     token = Token.get_token_from_user(user, 'autologin')
     unless token
       token = Token.create(:user => user, :action => 'autologin')
+    else
+      token..update_attribute(:created_on, Time.now)
     end
     token
   end

db/migrate/20150510100343_change_autologin_from_settings.rb

@@ -0,0 +1,9 @@
+class ChangeAutologinFromSettings < ActiveRecord::Migration
+  def up
+    Setting.where(name: 'autologin').update_all(value: 60)
+  end
+
+  def down
+    Setting.where(name: 'autologin').update_all(value: 7)
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20150505025537) do
+ActiveRecord::Schema.define(:version => 20150510100343) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -438,6 +438,13 @@ ActiveRecord::Schema.define(:version => 20150505025537) do
 
   add_index "delayed_jobs", ["priority", "run_at"], :name => "delayed_jobs_priority"
 
+  create_table "discuss_demos", :force => true do |t|
+    t.string   "title"
+    t.text     "body"
+    t.datetime "created_at", :null => false
+    t.datetime "updated_at", :null => false
+  end
+
   create_table "documents", :force => true do |t|
     t.integer  "project_id",                :default => 0,  :null => false
     t.integer  "category_id",               :default => 0,  :null => false
@@ -534,6 +541,7 @@ ActiveRecord::Schema.define(:version => 20150505025537) do
     t.integer  "is_teacher_score", :default => 0
   end
 
+  add_index "homework_attaches", ["bid_id"], :name => "bid_id"
   add_index "homework_attaches", ["bid_id"], :name => "index_homework_attaches_on_bid_id"
 
   create_table "homework_evaluations", :force => true do |t|
@@ -548,7 +556,9 @@ ActiveRecord::Schema.define(:version => 20150505025537) do
     t.integer "bid_id"
   end
 
+  add_index "homework_for_courses", ["bid_id"], :name => "bid_id"
   add_index "homework_for_courses", ["bid_id"], :name => "index_homework_for_courses_on_bid_id"
+  add_index "homework_for_courses", ["course_id"], :name => "course_id"
   add_index "homework_for_courses", ["course_id"], :name => "index_homework_for_courses_on_course_id"
 
   create_table "homework_users", :force => true do |t|
@@ -1153,12 +1163,14 @@ ActiveRecord::Schema.define(:version => 20150505025537) do
   create_table "students_for_courses", :force => true do |t|
     t.integer  "student_id"
     t.integer  "course_id"
-    t.datetime "created_at", :null => false
+    t.datetime "created_at",     :null => false
-    t.datetime "updated_at", :null => false
+    t.datetime "updated_at",     :null => false
+    t.integer  "student_idCopy"
   end
 
   add_index "students_for_courses", ["course_id"], :name => "index_students_for_courses_on_course_id"
   add_index "students_for_courses", ["student_id"], :name => "index_students_for_courses_on_student_id"
+  add_index "students_for_courses", ["student_id"], :name => "student_id"
 
   create_table "taggings", :force => true do |t|
     t.integer  "tag_id"