class MoveColumnsToUserStats < ActiveRecord::Migration def up add_column :user_stats, :topics_entered, :integer, default: 0, null: false add_column :user_stats, :time_read, :integer, default: 0, null: false add_column :user_stats, :days_visited, :integer, default: 0, null: false add_column :user_stats, :posts_read_count, :integer, default: 0, null: false add_column :user_stats, :likes_given, :integer, default: 0, null: false add_column :user_stats, :likes_received, :integer, default: 0, null: false add_column :user_stats, :topic_reply_count, :integer, default: 0, null: false execute 'UPDATE user_stats s SET topics_entered = u.topics_entered, time_read = u.time_read, days_visited = u.days_visited, posts_read_count = u.posts_read_count, likes_given = u.likes_given, likes_received = u.likes_received, topic_reply_count = u.topic_reply_count FROM users u WHERE u.id = s.user_id ' remove_column :users, :topics_entered remove_column :users, :time_read remove_column :users, :days_visited remove_column :users, :posts_read_count remove_column :users, :likes_given remove_column :users, :likes_received remove_column :users, :topic_reply_count end def down add_column :users, :topics_entered, :integer add_column :users, :time_read, :integer add_column :users, :days_visited, :integer add_column :users, :posts_read_count, :integer add_column :users, :likes_given, :integer add_column :users, :likes_received, :integer add_column :users, :topic_reply_count, :integer execute 'UPDATE users s SET topics_entered = u.topics_entered, time_read = u.time_read, days_visited = u.days_visited, posts_read_count = u.posts_read_count, likes_given = u.likes_given, likes_received = u.likes_received, topic_reply_count = u.topic_reply_count FROM user_stats u WHERE s.id = u.user_id ' remove_column :user_stats, :topics_entered remove_column :user_stats, :time_read remove_column :user_stats, :days_visited remove_column :user_stats, :posts_read_count remove_column :user_stats, :likes_given remove_column :user_stats, :likes_received remove_column :user_stats, :topic_reply_count end end