某个学生分数异常

db/migrate/20160224074034_update_one_student_score.rb

@@ -0,0 +1,38 @@
+class UpdateOneStudentScore < ActiveRecord::Migration
+  def up
+    student_work_score = StudentWorksScore.where("user_id = 11688 AND student_work_id = 34414").first
+    student_work_score.score = 100
+    student_work_score.save
+    student_works = StudentWork.where("user_id = 6456")
+    student_works.each do |work|
+      unless work.student_works_scores.empty?
+        if work.student_works_scores.where(:reviewer_role => 2).empty?
+          work.teaching_asistant_score = nil
+        else
+          work.teaching_asistant_score = work.student_works_scores.where(:reviewer_role => 2).average(:score).try(:round, 2).to_f
+        end
+        if work.student_works_scores.where(:reviewer_role => 3).empty?
+          work.student_score = nil
+        else
+          work.student_score = work.student_works_scores.where(:reviewer_role => 3).average(:score).try(:round, 2).to_f
+        end
+      end
+      if work.teaching_asistant_score.nil?
+        work.final_score = work.student_score
+      elsif work.student_score.nil?
+        work.final_score = work.teaching_asistant_score
+      else
+        homework = HomeworkCommon.find work.homework_common_id
+        ta_proportion = homework.homework_detail_manual.ta_proportion
+        final_ta_score = BigDecimal.new("#{work.teaching_asistant_score}") * BigDecimal.new("#{ta_proportion}")
+        final_s_score = BigDecimal.new("#{work.student_score}") * (BigDecimal.new('1.0')  - BigDecimal.new("#{ta_proportion}"))
+        final_score = final_ta_score + final_s_score
+        work.final_score = format("%.2f",final_score.to_f)
+      end
+      work.save
+    end
+  end
+
+  def down
+  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 => 20160223073859) do
+ActiveRecord::Schema.define(:version => 20160224074034) do
 
   create_table "activities", :force => true do |t|
     t.integer  "act_id",                                  :null => false
@@ -1269,7 +1269,6 @@ ActiveRecord::Schema.define(:version => 20160223073859) do
     t.text     "description"
     t.integer  "creator_id"
     t.integer  "home_id"
-    t.string   "domain"
     t.boolean  "is_public"
     t.datetime "created_at",                             :null => false
     t.datetime "updated_at",                             :null => false