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我正在尝试通过回形针和 aws-sdk 上传文件 s3。该文件已成功保存到 s3，但应用程序记录始终包含 nil 值。

附件型号：

class Attachment < ActiveRecord::Base
 has_attached_file :attachment,
                    storage: :s3,
                    bucket: "test",
                    s3_credentials: "#{Rails.root}/config/s3.yml",
                    path: "test/:id/:style.:extension"
end

附件控制器：

class AttachmentsControllers < ApplicationController

  def create
   Attachment.create(attachment: params[:attachment])
  end

end

日志：

SQL (1.0ms)  INSERT INTO "attachments" ("attacheable_id", "attacheable_type", "attachment", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["attacheable_id", nil], ["attacheable_type", nil], ["attachment", nil], ["created_at", Mon, 04 Mar 2013 20:17:47 UTC +00:00], ["updated_at", Mon, 04 Mar 2013 20:17:47 UTC +00:00]]

[paperclip] Saving attachments.
[paperclip] saving :test/11/original.jpg
[AWS S3 200 1.783004 0 retries] put_object(:acl=>:public_read,:bucket_name=>"test",:content_length=>21377,:content_type=>"image/jpeg",:data=>#<Paperclip::UploadedFileAdapter:0xb5b91f80 @target=#<ActionDispatch::Http::UploadedFile:0xb2812290 @original_filename="544494_328200280615189_1305908665_n.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"song[attachment]\"; filename=\"544494_328200280615189_1305908665_n.jpg\"\r\nContent-Type: image/jpeg\r\n", @tempfile=#<File:/tmp/RackMultipart20130305-9168-1brnfyd>>, @tempfile=#<File:/tmp/544494_328200280615189_1305908665_n20130305-9168-1r0pwtu.jpg>>,:key=>":test/11/original.jpg")
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1 回答 1

0

这行没有意义：

Attachment.create(attachment: [:attachment])

您所做的是将哈希传递给 create 方法。哈希有一个键attachment指向一个值，该值是一个仅包含符号的数组:attachment。

您可能希望从发送到控制器操作的参数中获取附件。像这样的东西：

Attachment.create(attachment: params[:attachment])

另请注意，您应遵循 Rails 的命名约定 - 模型 Attachment 的控制器应命名为 AttachmentsController

于 2013-03-04T20:59:42.667 回答