competition = current_competition

json.enroll_ended competition.enroll_ended?
json.enrolled competition.enrolled?(current_user)

# 教师报名设置
if competition.teacher_staff.present?
  json.teacher_staff do
    json.minimum competition.teacher_staff.minimum
    json.maximum competition.teacher_staff.maximum
    json.mutiple_limited competition.teacher_staff.mutiple_limited
  end
else
  json.teacher_staff nil
end

# 教师报名设置
if competition.member_staff.present?
  json.member_staff do
    json.minimum competition.member_staff.minimum
    json.maximum competition.member_staff.maximum
    json.mutiple_limited competition.member_staff.mutiple_limited
  end
else
  json.member_staff nil
end