新的迁移

db/migrate/20160304234903_uodapte_contributor_course.rb

@@ -1,4 +1,4 @@
-class UpdateContributor < ActiveRecord::Migration
+class UodapteContributorCourse < ActiveRecord::Migration
   def up
     Course.all.each do |course|
       if course.course_activities.count > 1
@@ -21,7 +21,7 @@ class UpdateContributor < ActiveRecord::Migration
           # 课程留言数
           journal_count = JournalsForMessage.where("user_id =? and jour_id =? and jour_type =? ", s.user_id, course.id, "Course").count * 1
           # 作业留言
-          journal_homework_count = JournalsForMessage.where("user_id =? and jour_id =? and jour_type =? ", s.user_id, course.id, "HomeworkCommon").count * 1
+          journal_homework_count = JournalsForMessage.find_by_sql("SELECT jfm.* FROM `journals_for_messages` jfm, homework_commons hc where hc.id = jfm.jour_id and hc.course_id =#{course.id} and jfm.user_id =#{s.user_id} and jfm.jour_type ='HomeworkCommon';").count * 1
           # journal_count = CourseActivity.where("user_id =? and course_id =? and course_act_type =?", s.student_id, course.id, "JournalsForMessage").count * 1
           # journal_reply_count = JournalsForMessage.where("user_id =? and jour_id =? and jour_type =? and status =?", s.student_id, course.id, "Course",1).count * 1
           total =   board_count + message_reply_count + common_reply_count + attachment_count + journal_count

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20160304154643) do
+ActiveRecord::Schema.define(:version => 20160304200639) do
 
   create_table "activities", :force => true do |t|
     t.integer  "act_id",                                  :null => false