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Bill Walton

2006-May-24 20:03 UTC

[Instantrails-users] Fw: [Rails] Mongrel errors on file upload

Sorry for the cross-post but I wanted to ask here too since it''s
certainly possible that this is an InstantRails-specific problem.

Thanks,
Bill
----- Original Message ----- 
From: Bill Walton 
To: rails at lists.rubyonrails.org 
Sent: Wednesday, May 24, 2006 2:50 PM
Subject: [Norton AntiSpam] [Rails] Mongrel errors on file upload

I did a spike in my sandbox to make sure I understood how to do file uploads
using CGI and there seems to be a problem with Mongrel.  WEBrick
doesn''t display the problem, but I can reproduce it everytime with
Mongrel.  I''d really appreciate it if someone would try out the code
below and see if they see the same thing.

The browser behavior is:
 - under IE6, a Page Not Found error
 - under Firefox, a blank white page

The display in the command window is not browser-dependent.  The error listing
starts with "Error calling Dispatcher.dispatch #<TypeError: superclass
mismatch for class Tempfile>".  I''ve included the entire error
listing below.

The controller and view code is given below.

The CGI file upload delivers either an IOString or a Tempfile, depending on the
size of the file being uploaded.  I''m using a 3K file to test IOString,
and a 10K file to test Tempfile.  Both are XML text files.

The scenerio that produces the error is:
1) mongrel_rails start
2) launch brower and nav to http://localhost:3000/create
3) upload small file
4) upload large file

If I upload in reverse, first the large file and then the small file,
everything''s fine.

If I upload the small file and then the large file, Mongrel sends my browser off
into the weeds and shows me the following in the command window.

C:\InstantRails-1.3\rails_apps\sandbox>mongrel_rails start
Running Mongrel server in development mode at 0.0.0.0:3000
Server Ready.  Use CTRL-Pause/Break to quit.
Error calling Dispatcher.dispatch #<TypeError: superclass mismatch for class
Tem
pfile>
C:/InstantRails-1.3/ruby/lib/ruby/1.8/tempfile.rb:12
C:/InstantRails-1.3/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require''
C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:987:in `read_multipart''
C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:984:in `read_multipart''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/cgi_ext/raw_post_data_fix.rb:20:in
`initialize_query''
C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:2270:in `initialize''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/cgi.rb:41:in
`initialize''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/rails.rb:57:in
`process''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:389:in
`process_client''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:359:in
`initialize''
C:/InstantRails-1.3/ruby/lib/ruby/1.8/timeout.rb:56:in `timeout''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:358:in
`initialize''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:356:in
`initialize''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:355:in
`initialize''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/bin/mongrel_rails:91:in
`start_mongrel''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/bin/mongrel_rails:144:in
`run''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/command.rb:163:in
`run''
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/bin/mongrel_rails:228
C:/InstantRails-1.3/ruby/bin/mongrel_rails:18

Here''s my code.

------------  create_controller.rb  --------------
class CreateController < ApplicationController

  def index
  end

  def read_in
    if params[:file_to_upload].instance_of?(Tempfile)
      FileUtils.copy(params[:file_to_upload].local_path,
"#{RAILS_ROOT}/public/sandbox1.xml")
      @location_display = "Copied the Tempfile to sandbox1.xml"
    else
      File.open("#{RAILS_ROOT}/public/sandbox2.xml","w"){|f|
         f.write(params[:file_to_upload].read)
         f.close}
      @location_display = "Saved the IOString to sandbox2.xml"
    end
  end
end

------------  index.rhtml  ------------
<h1>Choose the file to upload:</h1>

<%= start_form_tag({:action => ''read_in''}, :method =>
"POST", :multipart => true) %>

  <label>File to Upload:</label>
  <%= file_field_tag "file_to_upload" %><br/><br/>

  <%= submit_tag value="Upload" %>
<% end_form_tag %>

--------------- read_in.rhtml  --------------
<h1>File stored at:</h1>

<%=h @location_display %>

--------------------------------------------------

I''m running Windows XP.  I seem to be having a "blond moment"
and can''t remember how to check Rails / Ruby versions but am using
InstantRails 1.3.

Thanks in advance to anyone who''ll make the time to verify (or not) the
problem I''m seeing.

Best regards,
Bill

--------------------------------------------------------------------------------

_______________________________________________
Rails mailing list
Rails at lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails
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Curt Hibbs

2006-May-27 14:04 UTC

head link

[Instantrails-users] Fw: [Rails] Mongrel errors on file upload

Doesn''t seem likely that this is specific to IR. Have you asked Zed
about
this?

Curt

On 5/24/06, Bill Walton <bill.walton at charter.net>
wrote:>
>  Sorry for the cross-post but I wanted to ask here too since it''s
> certainly possible that this is an InstantRails-specific problem.
>
> Thanks,
> Bill
> ----- Original Message ----- *From:* Bill Walton <bill.walton at
charter.net>
> *To:* rails at lists.rubyonrails.org
> *Sent:* Wednesday, May 24, 2006 2:50 PM
> *Subject:* [Norton AntiSpam] [Rails] Mongrel errors on file upload
>
> I did a spike in my sandbox to make sure I understood how to do file
> uploads using CGI and there seems to be a problem with Mongrel.  WEBrick
> doesn''t display the problem, but I can reproduce it everytime with
Mongrel.
> I''d really appreciate it if someone would try out the code below
and see if
> they see the same thing.
>
> The browser behavior is:
>  - under IE6, a Page Not Found error
>  - under Firefox, a blank white page
>
> The display in the command window is not browser-dependent.  The error
> listing starts with "Error calling Dispatcher.dispatch #<TypeError:
> superclass mismatch for class Tempfile>".  I''ve included
the entire error
> listing below.
>
> The controller and view code is given below.
>
> The CGI file upload delivers either an IOString or a Tempfile, depending
> on the size of the file being uploaded.  I''m using a 3K file to
test
> IOString, and a 10K file to test Tempfile.  Both are XML text files.
>
> The scenerio that produces the error is:
> 1) mongrel_rails start
> 2) launch brower and nav to http://localhost:3000/create
> 3) upload small file
> 4) upload large file
>
> If I upload in reverse, first the large file and then the small file,
> everything''s fine.
>
> If I upload the small file and then the large file, Mongrel sends my
> browser off into the weeds and shows me the following in the command
window.
>
>
> C:\InstantRails-1.3\rails_apps\sandbox>mongrel_rails start
> Running Mongrel server in development mode at 0.0.0.0:3000
> Server Ready.  Use CTRL-Pause/Break to quit.
> Error calling Dispatcher.dispatch #<TypeError: superclass mismatch for
> class Tem
> pfile>
> C:/InstantRails-1.3/ruby/lib/ruby/1.8/tempfile.rb:12
> C:/InstantRails-1.3
> /ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
> `require''
> C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:987:in
`read_multipart''
> C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:984:in
`read_multipart''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/cgi_ext/raw_post_data_fix.rb:20:in
> `initialize_query''
> C:/InstantRails-1.3/ruby/lib/ruby/1.8/cgi.rb:2270:in `initialize''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/cgi.rb:41:in
> `initialize''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/rails.rb:57:in
> `process''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:389:in
> `process_client''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:359:in
> `initialize''
> C:/InstantRails-1.3/ruby/lib/ruby/1.8/timeout.rb:56:in `timeout''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:358:in
> `initialize''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:356:in
> `initialize''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel.rb:355:in
> `initialize''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/bin/mongrel_rails:91:in
> `start_mongrel''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/bin/mongrel_rails:144:in
> `run''
>
C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32/lib/mongrel/command.rb:163:in
> `run''
> C:/InstantRails-1.3/ruby/lib/ruby/gems/1.8/gems/mongrel-0.3.11-mswin32
> /bin/mongrel_rails:228
> C:/InstantRails-1.3/ruby/bin/mongrel_rails:18
> Here''s my code.
>
> ------------  create_controller.rb  --------------
> class CreateController < ApplicationController
>
>   def index
>   end
>
>   def read_in
>     if params[:file_to_upload].instance_of?(Tempfile)
>       FileUtils.copy(params[:file_to_upload].local_path,
> "#{RAILS_ROOT}/public/sandbox1.xml")
>       @location_display = "Copied the Tempfile to sandbox1.xml"
>     else
>      
File.open("#{RAILS_ROOT}/public/sandbox2.xml","w"){|f|
>          f.write(params[:file_to_upload].read)
>          f.close}
>       @location_display = "Saved the IOString to sandbox2.xml"
>     end
>   end
> end
>
> ------------  index.rhtml  ------------
> <h1>Choose the file to upload:</h1>
>
> <%= start_form_tag({:action => ''read_in''}, :method
=> "POST", :multipart
> => true) %>
>
>   <label>File to Upload:</label>
>   <%= file_field_tag "file_to_upload"
%><br/><br/>
>
>   <%= submit_tag value="Upload" %>
> <% end_form_tag %>
>
> --------------- read_in.rhtml  --------------
> <h1>File stored at:</h1>
>
> <%=h @location_display %>
>
> --------------------------------------------------
>
> I''m running Windows XP.  I seem to be having a "blond
moment" and can''t
> remember how to check Rails / Ruby versions but am using InstantRails 1.3.
>
> Thanks in advance to anyone who''ll make the time to verify (or
not) the
> problem I''m seeing.
>
> Best regards,
> Bill
>
> ------------------------------
>
> _______________________________________________
> Rails mailing list
> Rails at lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
>
> _______________________________________________
> Instantrails-users mailing list
> Instantrails-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/instantrails-users
>
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Instantrails users - May 2006 - Fw: [Rails] Mongrel errors on file upload

[Instantrails-users] Fw: [Rails] Mongrel errors on file upload

[Instantrails-users] Fw: [Rails] Mongrel errors on file upload