educoder/lib/tasks/publick_course.rake

#coding=utf-8
# 执行示例  bundle exec rake public_course:student args=149,2903
# args 第一个参数是subject_id，第二个参数是课程course_id

desc "同步精品课数据"
namespace :public_course do
  task :student => :environment do


    subject_id = ENV['args'].split(",").first
    course_id = ENV['args'].split(",").last
    puts "subject_id is #{subject_id}"
    puts "course_id is #{course_id}"

    user_ids = Myshixun.find_by_sql("select distinct(user_id) from myshixuns where shixun_id in (select shixun_id from stage_shixuns
                                     where stage_id in (select id from stages where subject_id=#{subject_id}))").map(&:user_id)
    puts user_ids
    if user_ids.present?
      user_ids.each do |user_id|
        puts user_id
        CourseMember.create!(course_id: course_id, user_id: user_id, role: 4)
      end
    end
  end
end