impress/db/migrate/20110804134432_add_timestamps_to_items.rb
2011-08-04 10:01:44 -04:00

13 lines
385 B
Ruby

class AddTimestampsToItems < ActiveRecord::Migration
def self.up
add_timestamps :objects
timestamp_query = "(SELECT created_at FROM contributions WHERE contributed_id = objects.id AND contributed_type = 'Item')"
update "UPDATE objects SET created_at = #{timestamp_query}, updated_at = #{timestamp_query}"
end
def self.down
remove_timestamps :objects
end
end