i started using nginx upload module (which creates upload files like /tmp/000121545) but i need paperclip to use original filename while saving files (like /public/avatars/LuckyLuke.jpg)
我开始使用nginx上传模块（创建上传文件，如/ tmp / 000121545）但我需要回形针在保存文件时使用原始文件名（如/public/avatars/LuckyLuke.jpg）
previously in the parameters Rails were passing just
以前在参数Rails传递的只是
"avatar"=>#<File:/tmp/RackMultipart20100413-6151-t3ecq0-0>
no original filename as well, so i am wondering where from does it come in paperclip? i tried looking through plugin code but it's currently a bit too complex for me.
没有原始文件名，所以我想知道它在哪里来回形针？我尝试通过插件代码查看，但它对我来说目前有点过于复杂。
1 个解决方案
#1
19
The browser sends a http header with the file name. ("Content-Disposition: filename=original_file.jpg")
浏览器发送带有文件名的http标头。 （“Content-Disposition：filename = original_file.jpg”）
Rails makes this available as a instance method of the temp file object: params[:avatar].original_filename, and paperclip uses that.
Rails使其可用作临时文件对象的实例方法：params [：avatar] .original_filename，paperclip使用它。
In detail, Rack parses the multipart form in Rack::Utils::Multipart::UploadedFile and puts a hash in the parameters that includes :tempfile and :filename. Then ActionDispatch::Http::Upload comes along and replaces that hash by the File object (value of :tempfile), extending it with the module ActionDispatch::Http::UploadedFile, which adds a instance variable for original_path and the method original_filename.
详细地说，Rack在Rack :: Utils :: Multipart :: UploadedFile中解析multipart表单，并在参数中放入一个哈希值，包括：tempfile和：filename。然后ActionDispatch :: Http :: Upload出现并用File对象替换该哈希值（值：tempfile），用模块ActionDispatch :: Http :: UploadedFile扩展它，它为original_path和方法original_filename添加一个实例变量。
#1
19
The browser sends a http header with the file name. ("Content-Disposition: filename=original_file.jpg")
浏览器发送带有文件名的http标头。 （“Content-Disposition：filename = original_file.jpg”）
Rails makes this available as a instance method of the temp file object: params[:avatar].original_filename, and paperclip uses that.
Rails使其可用作临时文件对象的实例方法：params [：avatar] .original_filename，paperclip使用它。
In detail, Rack parses the multipart form in Rack::Utils::Multipart::UploadedFile and puts a hash in the parameters that includes :tempfile and :filename. Then ActionDispatch::Http::Upload comes along and replaces that hash by the File object (value of :tempfile), extending it with the module ActionDispatch::Http::UploadedFile, which adds a instance variable for original_path and the method original_filename.
详细地说，Rack在Rack :: Utils :: Multipart :: UploadedFile中解析multipart表单，并在参数中放入一个哈希值，包括：tempfile和：filename。然后ActionDispatch :: Http :: Upload出现并用File对象替换该哈希值（值：tempfile），用模块ActionDispatch :: Http :: UploadedFile扩展它，它为original_path和方法original_filename添加一个实例变量。