无法使用CarrierWave Direct将图像保存到数据库 [英] Can't save Image to database using CarrierWave Direct

问题描述

我正在将CarrierWave Direct与Sidekiq结合使用，以在后台将图像上传到Amazon S3。图片已按预期上传，但我似乎无法将图片记录添​​加到数据库中。当我提出错误时，我得到文件名不能为空 c。

I am using CarrierWave Direct with Sidekiq to upload images to Amazon S3 in the background. The images are being uploaded as expected, but I can't seem to add the image record to the database. When I raise errors, I get that filename can't be blank.

这里是相关代码：

应用程序/上传器/image_uploader.rb

class ImageUploader < CarrierWave::Uploader::Base

  include CarrierWaveDirect::Uploader

  include CarrierWave::MimeTypes
  process :set_content_type

end

app / controllers / admin / images_controller.rb

  def index
    @uploader = Image.new.filename
    @uploader.success_action_redirect = new_admin_project_image_url(@project)
    render "new"
  end

  def new
    @image = Image.new
    @image.filename = params[:key]
    @image.imageable = @project
    unless @image.save
      raise @image.errors.to_yaml
    end
  end

app / models / image.rb

class Image < ActiveRecord::Base
  attr_accessible :imageable_id, :imageable_type, :filename

  validates :filename, presence: true
  validates :imageable_id, presence: true
  validates :imageable_type, presence: true

  belongs_to :imageable, polymorphic: true

  mount_uploader :filename, ImageUploader
end

app / views / admin / images / new.html.erb

<%= direct_upload_form_for @uploader do |f| %>
  <p><%= f.file_field :filename %></p>
  <p><%= f.submit "Upload Image" %></p>
<% end %>

推荐答案

我问了一个类似的问题，该问题返回了另一个错误此处。

I asked a similar question that was returning a different error here.

两种情况下的解决方案相同。 carrierwave_direct 使用文件名作为方法。因此，在数据库 filename 中命名该列正是导致此问题的原因。

The solution in both cases was the same. carrierwave_direct uses "filename" as a method. Therefore, naming the column in the database filename is very what is causing the issue here.

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