ruby-on-rails - 使用 carrierwave 将图像上传到谷歌云存储，文件名最终被保存而不是存储桶中图像的公共(public)链接

Question

我正在尝试使用 carrierwave gem 从我的 Rails 4.2 应用程序将图像上传到谷歌云存储。每当我上传图像时，它都会很好地上传到存储桶中，但它会作为原始图像名称保存在数据库中，例如image.png，而不是图片的谷歌云存储公共(public)链接，例如https://storage.googleapis.com/project/bucket/image.png

不太确定从这里需要做什么才能从存储桶中保存公共(public)链接而不仅仅是文件名。

carrierwave.rb文件

CarrierWave.configure do |config|
  config.fog_credentials = {
    provider:                         'Google',
    google_storage_access_key_id:     'key',
    google_storage_secret_access_key: 'secret key'
  }
  config.fog_directory = 'bucket-name'
end

上传者/check_item_value_image_uploader.rb

class CheckItemValueImageUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  # include CarrierWave::MiniMagick

  # Choose what kind of storage to use for this uploader:
  #storage :file
   storage :fog

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "check-item-value-images/#{model.id}"
  end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
   def extension_white_list
     %w(jpg jpeg gif png)
   end

end

相关 gem

gem 'gcloud'
gem "fog"
gem 'google-api-client', '~> 0.8.6'
gem "mime-types"

check_category_item_value 模型

mount_uploader :value, CheckItemValueImageUploader

check_category_item_value更新方法

if @check_category_item_value.save 
   flash[:success] = "Successfully updated"
   redirect_to category_items_edit_path(@guide, @category, @category_item)
else
   render 'category_items/edit'
end

编辑表格

 <%= form_for(@check_category_item_value) do |f| %>
   <%= f.file_field :value, :value => item_key.value, accept: "image/jpeg, image/jpg, image/gif, image/png" %>
   <%= f.submit "Submit" %><hr>
 <% end %>

表格工作正常，但保存的值是原始图像名称，而不是图像的谷歌云存储公共(public)链接。

我使用了 carrierwave docs , this post , 和 this video通过谷歌云平台获得我现在拥有的。我错过了什么？

更新

添加 config.fog_public = true 什么都不做

CarrierWave.configure do |config|
  config.fog_credentials = {
    provider:                         'Google',
    google_storage_access_key_id:     'key',
    google_storage_secret_access_key: 'secret key'
  }
  config.fog_public = true
  config.fog_directory = 'bucket-name'
end

Answer 1

要设置公开链接，请在您的配置文件中检查此配置:

# You may set it false now
config.fog_public = true

对于文件名，您可以在 CheckItemValueImageUploader 中覆盖，这是一个示例:

class CheckItemValueImageUploader < CarrierWave::Uploader::Base
  def filename
    "#{model.id}-#{original_filename}.#{file.extension}" if original_filename.present?
  end
end