23 lines
607 B
Ruby
23 lines
607 B
Ruby
class UpdateCourseActivityTime < ActiveRecord::Migration
|
|
def up
|
|
count = CourseActivity.all.count / 10 + 1
|
|
transaction do
|
|
for i in 1 ... count do i
|
|
CourseActivity.page(i).per(10).each do |activity|
|
|
if activity.course_act
|
|
if activity.course_act.respond_to?("created_at")
|
|
activity.created_at = activity.course_act.created_at
|
|
elsif activity.course_act.respond_to?("created_on")
|
|
activity.created_at = activity.course_act.created_on
|
|
end
|
|
activity.save
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def down
|
|
end
|
|
end
|