Bug #1414: NameError (undefined method `path' for class `ActionController::UploadedStringIO')

• Status: Third Party's Issue
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.2dev (2009-04-25 trunk 23281) [powerpc-darwin9.6.0]

[rick (Rick Lloyd)]

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See also Ruby bug #1271

Processing ApplicationController#create (for 127.0.0.1 at 2009-04-26 19:00:26) [POST]
Parameters: {"authenticity_token"=>"cP8NCg4Exg4e22Ijs/bRLpgzjnVwmwspKi8QnF4Xi40=", "mugshot"=>{"uploaded_data"=>#File:/var/folders/JP/JP7pZWhAHLy-es7AYViHF++++TI/-Tmp-/RackMultipart50621-2}, "commit"=>"Create"}

NameError (undefined method path' for class ActionController::UploadedStringIO'):
internal:prelude:8:in synchronize' thin (1.0.0) lib/thin/connection.rb:63:in pre_process'
thin (1.0.0) lib/thin/connection.rb:54:in process' thin (1.0.0) lib/thin/connection.rb:39:in receive_data'
eventmachine (0.12.6) lib/eventmachine.rb:240:in run_machine' eventmachine (0.12.6) lib/eventmachine.rb:240:in run'
thin (1.0.0) lib/thin/backends/base.rb:57:in start' thin (1.0.0) lib/thin/server.rb:150:in start'

The problem is triggered when using attachment_fu, with file_storage, to load a jpg image into a rails application.

The problem occurs on only the first create after restarting the server (thin). After the first failed create, a browser reload with no change in data will succeed. Also all following creates will succeed.

I'm not assuming this to be a ruby bug but am unable to track the problem any closer than prelude.rb in the ruby source.

The previous issue (bug #1271) looks to be the same as mine. If I use webrick instead of thin for the server I get a server crash.

I've attached a gz tarfile of the minimum needed to repeat the problem. I have not included rails, thin, or any other of the standard gems. The mugshots/vendor/plugins does contain attachment_fu as I needed to submit a change to that gem (: no longer and alias for then). I've included a GEM-LIST (gem list) file fyi.

Here are the steps:

In terminal:
gzcat mugshots.tar.gz | tar xvf -
cd mugshots
rake db:migrate
script/server thin

In browser:
http://localhost:3000/mugshots/new
use "Browse..." to select ".../mugshots/DSCN0925.jpg"
use "Create" to demonstrate problem
use browser "Reload Current Page" and "Resend" buttons to successfully load attached image
click "New shot" link
use "Browse..." to select ".../mugshots/DSCN0913.jpg"
use "Create" to successfully load attached image
=end

[matz (Yukihiro Matsumoto)]

=begin
Hi,

I am afraid that it's a bug in Rails or its plugin. Could you isolate
the problem if it's a bug in Ruby itself?

						matz.

In message "Re: [ruby-core:23326] [Bug #1414] NameError (undefined method path' for class ActionController::UploadedStringIO')"
on Mon, 27 Apr 2009 15:35:02 +0900, Rick Lloyd [e-mail] writes:

|Processing ApplicationController#create (for 127.0.0.1 at 2009-04-26 19:00:26) [POST]
| Parameters: {"authenticity_token"=>"cP8NCg4Exg4e22Ijs/bRLpgzjnVwmwspKi8QnF4Xi40=", "mugshot"=>{"uploaded_data"=>#File:/var/folders/JP/JP7pZWhAHLy-es7AYViHF++++TI/-Tmp-/RackMultipart50621-2}, "commit"=>"Create"}
|
|NameError (undefined method path' for class ActionController::UploadedStringIO'):
| internal:prelude:8:in synchronize' | thin (1.0.0) lib/thin/connection.rb:63:in pre_process'
| thin (1.0.0) lib/thin/connection.rb:54:in process' | thin (1.0.0) lib/thin/connection.rb:39:in receive_data'
| eventmachine (0.12.6) lib/eventmachine.rb:240:in run_machine' | eventmachine (0.12.6) lib/eventmachine.rb:240:in run'
| thin (1.0.0) lib/thin/backends/base.rb:57:in start' | thin (1.0.0) lib/thin/server.rb:150:in start'
|
|The problem is triggered when using attachment_fu, with file_storage, to load a jpg image into a rails application.

=end

[rick (Rick Lloyd)]

=begin
I think you are correct. I first assumed that, since the error was induced by swapping 1.9.2dev for 1.8.7p72, that ruby was the culprit. A naive assumption of course.

A new version of rake (1.0.0) was introduced which changes the behavior of the error. I'm going to start conversing with the rack folks and will keep you posted.

Rick
=end

[nobu (Nobuyoshi Nakada)]

=begin
Hi,

At Mon, 27 Apr 2009 15:35:02 +0900,
Rick Lloyd wrote in [ruby-core:23326]:

NameError (undefined method path' for class ActionController::UploadedStringIO'):

Although I don't know what ActionController::UploadedStringIO
is, I suspect it may be relevant that StringIO#path is no
longer defined.

--
Nobu Nakada

=end

[rick (Rick Lloyd)]

=begin
So the current info seems to point to multiple problems related to the StringIO changes in Ruby and introduction evolution of I18N in Rails and other gems. My specific problem was "fixed" by adding two patches - one to rack and one to ActionController.

So, thanks again for your help with this.

This issue is not a ruby bug.
=end

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Third Party's Issue

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