Rails 5.2 API ActiveStorage如何获取多图像的URL路径?

问题描述 投票:1回答:1

我正在从paperclip迁移到Rails 5.2和活动存储。我使用rails作为API。

如何获取has_many_attached:images的URL路径

这是有效的单个文件的代码:

class UserSerializer < ActiveModel::Serializer
include Rails.application.routes.url_helpers
attributes %i[email name username]
....
  attribute :verification_url do
    if object.verification_file.attachment
      URI.join(ActionController::Base.asset_host, rails_blob_path(object.verification_file))
    end
  end
....

end

当我尝试为多图像做类似的事情时,我只是获取这些图像,而不是他们的URL。

 include Rails.application.routes.url_helpers
 attributes :id, :name, :description, :images

 def images
  if object.images.attachments
    object.images.each do |image| 
      URI.join(ActionController::Base.asset_host, rails_blob_path(image))
    end
  end 
end
ruby-on-rails rails-activestorage ruby-on-rails-5.2
1个回答
1
投票

这是解决方案:

def images
  return unless object.images.attachments
  image_urls = object.images.map do |image| 
    URI.join(
      ActionController::Base.asset_host, 
      rails_blob_path(image))
  end

  image_urls
end
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