迁移27641作业效率分

db/migrate/20190604115012_migrate_homework_eff_score.rb

@@ -0,0 +1,41 @@
+class MigrateHomeworkEffScore < ActiveRecord::Migration
+  def up
+    homework = HomeworkCommon.where(id: 27641).first
+    if homework.present?
+      max_efficiency = homework.max_efficiency
+      homework.student_works.where(compelete_status: 1).each do |work|
+        user_total_score = 0
+        pass_consume_time = 0
+        myshixun = work.myshixun
+        homework.homework_challenge_settings.each do |setting|
+          game = myshixun.games.where(:challenge_id => setting.challenge_id, :status => 2).first
+          unless game.nil?
+            pass_consume_time += (game.cost_time / 60.0).to_f
+            user_total_score += game.final_score.to_i < 0 ? 0 : game.challenge.score.to_i
+          end
+        end
+
+        efficiency = (pass_consume_time == 0 ? 0 : Math.log((user_total_score / pass_consume_time.to_f) + 1.0))
+        work.update_column("efficiency", format("%.2f", efficiency))
+
+        if max_efficiency < work.efficiency
+          max_efficiency = work.efficiency
+        end
+      end
+      homework.update_column("max_efficiency", max_efficiency)
+
+      homework.student_works.where("compelete_status != 0").each do |student_work|
+        eff_score = student_work.efficiency / homework.max_efficiency * homework.eff_score
+        student_work.eff_score = format("%.2f", eff_score)
+        unless student_work.ultimate_score
+          work_score = student_work.final_score.to_f + student_work.eff_score - student_work.late_penalty
+          student_work.work_score = format("%.2f", work_score < 0 ? 0 : work_score)
+        end
+        student_work.save
+      end
+    end
+  end
+
+  def down
+  end
+end