json.(@graduation_topic, :description, :topic_type, :topic_source, :topic_property_first,
    :topic_property_second, :source_unit, :topic_repeat, :province, :city, :user_id)
# 附件信息
json.attachment_list do
  json.array! @attachments do |attach|
    json.partial! "attachments/attachment_simple", locals: {attachment: attach}
  end
end