educoder/app/controllers/users/shixuns_controller.rb

class Users::ShixunsController < Users::BaseController
  def index
    shixuns = Users::ShixunService.new(observed_user, query_params).call

    ## 云上实验室过滤
    if current_laboratory.main_site?
      not_shixun_ids = Shixun.joins(:laboratory_shixuns).where("laboratory_shixuns.laboratory_id != #{current_laboratory.id}")
      shixuns = shixuns.where.not(id: not_shixun_ids)
    else
      shixuns = shixuns.joins(:laboratory_shixuns).where(laboratory_shixuns: { laboratory_id: current_laboratory.id })
    end

    @count = shixuns.count
    @shixuns = paginate(shixuns.includes(:first_tag_repertoire), special: observed_user.is_teacher?)

    ids = @shixuns.map(&:id)
    @finished_challenges_count_map = Game.joins(:myshixun).where(user_id: observed_user.id, status: 2)
                                       .where(myshixuns: { shixun_id: ids }).group('myshixuns.shixun_id').count
  end

  private

  def query_params
    params.permit(:category, :status, :sort_by, :sort_direction)
  end
end