增加判断评分是不是老师评分的列

db/migrate/20141229025519_add_colum_to_seems_rateable_rates.rb

@@ -0,0 +1,5 @@
+class AddColumToSeemsRateableRates < ActiveRecord::Migration
+  def change
+    add_column :seems_rateable_rates, :is_teacher_score, :integer, default: 0
+  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 => 20141210070327) do
+ActiveRecord::Schema.define(:version => 20141229025519) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -984,6 +984,7 @@ ActiveRecord::Schema.define(:version => 20141210070327) do
     t.string   "dimension"
     t.datetime "created_at",                                   :null => false
     t.datetime "updated_at",                                   :null => false
+    t.integer  "is_teacher_score",              :default => 0
   end
 
   create_table "settings", :force => true do |t|