提升迁移文件效率

2015-08-15 19:47:24 +08:00 · 2015-08-15 19:47:24 +08:00 · 0ba9cfe5dd
parent 8d30bec8a4
commit 0ba9cfe5dd
1 changed files with 2 additions and 2 deletions
--- a/db/migrate/20150811010817_update_activities_data.rb
+++ b/db/migrate/20150811010817_update_activities_data.rb
@ -1,9 +1,9 @@
 class UpdateActivitiesData < ActiveRecord::Migration
  def up 	
-  	count = Activity.all.count / 10 + 1
+  	count = Activity.all.count / 20 + 1
    transaction do
      for i in 1 ... count do i
-        Activity.all.each do |activity|
+        Activity.page(i).per(20).each do |activity|
          type = activity.act_type
          if type=='Contest' || type=='Message' || type=='News'|| type=='Journal'|| type=='Issue'|| type=='Principal'||type=='JournalsForMessage'
            activity.created_at = activity.act.created_on if activity.act