class WeatherArt < ApplicationRecord
  belongs_to :city

  has_one_attached :image

  scope :latest, -> { order(created_at: :desc) }

  def image_url
    # 这里实现获取图片URL的逻辑，可以是AWS S3或其他存储服务
    Rails.application.routes.url_helpers.rails_blob_path(image, only_path: true) if image.attached?
  end
end