27 lines
835 B
Ruby
27 lines
835 B
Ruby
class UpdateCourseActivityTime < ActiveRecord::Migration
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def up
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count = CourseActivity.all.count / 30 + 1
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transaction do
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for i in 1 ... count do i
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CourseActivity.page(i).per(30).each do |activity|
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if activity.course_act
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if activity.course_act.respond_to?("created_at")
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activity.created_at = activity.course_act.created_at
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elsif activity.course_act.respond_to?("created_on")
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activity.created_at = activity.course_act.created_on
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end
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activity.save
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user_activity = UserActivity.where("act_type = '#{activity.course_act_type.to_s}' and act_id = '#{activity.course_act_id}'").first
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user_activity.created_at = activity.created_at
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user_activity.save
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end
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end
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end
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end
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end
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def down
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end
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end
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