class AddColumnToExerciseUsers < ActiveRecord::Migration
  def change
    add_column :exercise_users, :commit_status, :integer, :default => 0
    count = ExerciseUser.all.count / 30 + 2
    transaction do
      for i in 1 ... count do i
        ExerciseUser.page(i).per(30).each do |eu|
          if eu.exercise && eu.exercise.end_time < Time.now && eu.exercise.end_time > eu.created_at
            eu.update_column('commit_status', 1)
          end
        end
      end
    end
  end
end