回形针：无法附加 XLS（但 DOC 有效）

Question

我无法附加 XLS 文件，但 DOC 有效：

Attachments file content type is invalid
Attachments file is invalid

这是日志：

Parameters: ... "files"=>[#<ActionDispatch::Http::UploadedFile:0x0000000daf7730 @tempfile=#<Tempfile:C:/Users/Chloe/AppData/Local/Temp/RackMultipart20170511-47156-ym774u.xls>, @original_filename="Chocolate_Store1.xls", @content_type="application/vnd.ms-excel", @headers="Content-Disposition: form-data; name=\"deal[files][]\"; filename=\"Chocolate_Store1.xls\"\r\nContent-Type: application/vnd.ms-excel\r\n">],
...
Command :: file -b --mime "C:/Users/Chloe/AppData/Local/Temp/1f1fb4d71efc0bd245abd7b5b9aa661220170511-47156-1rqzd0q.xls"
   (1.0ms)  ROLLBACK
  Rendering deals/edit.html.erb within layouts/application

当我测试类型时：

>file -b --mime "C:/Users/Chloe/AppData/Local/Temp/1f1fb4d71efc0bd245abd7b5b9aa661220170511-47156-1rqzd0q.xls"
application/vnd.ms-office; charset=binary

我的接受列表中有此类型：

class Attachment < ApplicationRecord
  has_attached_file :file
  validates_attachment_content_type :file, content_type: [
    "application/pdf", "application/msword", 
    "application/vnd.openxmlformats-officedocument.wordprocessingml.document", 
    "application/vnd.oasis.opendocument.text",
    "application/vnd.ms-excel",
    "application/vnd.ms-office",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "application/vnd.oasis.opendocument.spreadsheet"
   ]

end

Rails 5.0.2，回形针 5.1.0，文件 5.04 (DevKit)

我注意到 DevKit file 与 Cygwin file 不同。不确定是否相关：

>file -b --mime "C:/Users/Chloe/AppData/Local/Temp/1f1fb4d71efc0bd245abd7b5b9aa661220170515-54920-1e2bk5s.xls"
application/vnd.ms-office; charset=binary

$ file -b --mime "C:/Users/Chloe/AppData/Local/Temp/1f1fb4d71efc0bd245abd7b5b9aa661220170515-54920-1e2bk5s.xls"
application/vnd.ms-excel; charset=binary

Answer 1

我改用

validates_attachment_file_name :file, matches: [/\.pdf$/, /\.docx?$/, /\.xlsx?$/, /\.odt$/, /\.ods$/]

Answer 2

...content_type: [...'application/x-ole-storage'...]

对我有用

回形针：无法附加 XLS（但 DOC 有效）

Paperclip: Cannot attach XLS (But DOC works)

ruby-on-rails

paperclip

mime-types

paperclip-validation