修正耗时不准的问题

lib/tasks/shixuns.rake

@@ -0,0 +1,18 @@
+#coding=utf-8
+
+
+desc "纠正学生实训耗时不准的问题"
+
+namespace :shixuns do
+  task correct_the_shixun_cost_time: :environment do
+    puts "myshixun_id: #{ENV['myshixun_id']}"
+    if ENV['myshixun_id'].present?
+      myshixun = Myshixun.find(ENV['myshixun_id'])
+      myshixun.games.where(status: 2).each do |game|
+        cost_time = game.open_time.to_i - game.end_time.to_i
+        game.update_column(:cost_time, cost_time)
+      end
+    end
+
+  end
+end