educoder/app/helpers/subjects_helper.rb

module SubjectsHelper

  # 实训路径的发布状态
  def publish_status subject, is_manager, user, shixuns
    status = -1
    if is_manager
      status = 0 if subject.status == 0 && shixuns.count > 0
      status = 1 if subject.status == 1
      status = 2 if subject.status == 2 && user.admin?
    end
    status
  end

  # 实训路径的所有用户获得的标签
  def user_shixun_tags challenge_ids, user_id
    ChallengeTag.joins("join games on challenge_tags.challenge_id = games.challenge_id").
      where(challenge_id: challenge_ids, games: {status: 2, user_id: user_id}).pluck("challenge_tags.name").uniq
  end
end