Rails - Jan 2006 - File_column crashing WEBrick when using :magick options

I''m trying to use file_column in an app I''m writing. Simple
file uploads
are working fine.

However, when I try and use the :magick options to make resized 
versions, WEBrick dies.

This is the Media model:

class Media < ActiveRecord::Base
  file_column :media_item,
              :magick => {
                :versions => {
                    :thumb => {:size => "50x50"},
                    :medium => {:size => "640x480"}
                }        
              }
end

This is the output from WEBrick when it dies:

script/server: No such file or directory - file -bi 
"./script/../config/../publi
c/media/media_item/tmp/1136422120.515000.5436/004.jpg"
Output file write error --- out of disk space?

There is no issue with disk space and the odd thing is it looks to have 
gotten half way through when it dies as this is the contents of the dirs:

E:\rails\app_name\public\media
\---media_item
    \---tmp
        \---1136422120.515000.5436
            |   004.jpg
            |
            \---thumb
                    004.jpg


The file itself seems to be fine. The resized thumb is at 0 bytes, so 
this is where it looks to have died when trying to write that.

RMagick itself seems to work fine on its own. I wrote a small app to 
test it and all went ok, so it would seem to be something file_column 
related as opposed to simply RMagick itself not working.

Anyone any ideas as to how to solve this issue?

Running on Windows XP box if that makes any diff and using edge rails.

Thanks in advance.

-- 
R.Livsey
http://livsey.org

How come you always seem to find the answer 5 mins after hitting send!?

An earlier thread (file_column on windows?) contains all the info 
required to fix the issue.

Sorry for the noise.

-- 
R.Livsey
http://livsey.org



Richard Livsey wrote:
> I''m trying to use file_column in an app I''m writing.
Simple file
> uploads are working fine.
>
> However, when I try and use the :magick options to make resized 
> versions, WEBrick dies.
>
> This is the Media model:
>
> class Media < ActiveRecord::Base
>  file_column :media_item,
>              :magick => {
>                :versions => {
>                    :thumb => {:size => "50x50"},
>                    :medium => {:size => "640x480"}
>                }                     }
> end
>
> This is the output from WEBrick when it dies:
>
> script/server: No such file or directory - file -bi 
> "./script/../config/../publi
> c/media/media_item/tmp/1136422120.515000.5436/004.jpg"
> Output file write error --- out of disk space?
>
> There is no issue with disk space and the odd thing is it looks to 
> have gotten half way through when it dies as this is the contents of 
> the dirs:
>
> E:\rails\app_name\public\media
> \---media_item
>    \---tmp
>        \---1136422120.515000.5436
>            |   004.jpg
>            |
>            \---thumb
>                    004.jpg
>
>
> The file itself seems to be fine. The resized thumb is at 0 bytes, so 
> this is where it looks to have died when trying to write that.
>
> RMagick itself seems to work fine on its own. I wrote a small app to 
> test it and all went ok, so it would seem to be something file_column 
> related as opposed to simply RMagick itself not working.
>
> Anyone any ideas as to how to solve this issue?
>
> Running on Windows XP box if that makes any diff and using edge rails.
>
> Thanks in advance.
>

Seems I spoke too soon when I said it was all ok.
The comments in the earlier thread fix the issue with the ''-file
-bi''
error, but WEBrick still dies with the following:

"Output file write error --- out of disk space?"

Now I''m nowhere near short of disk space and it seems to upload the 
original file ok, as far as I can see it just dies when writing the 
resized version to disk.

Any ideas would be greatly appreciated.

Thanks in advance.

-- 
R.Livsey
http://livsey.org



Richard Livsey wrote:
> I''m trying to use file_column in an app I''m writing.
Simple file
> uploads are working fine.
>
> However, when I try and use the :magick options to make resized 
> versions, WEBrick dies.
>
> This is the Media model:
>
> class Media < ActiveRecord::Base
>  file_column :media_item,
>              :magick => {
>                :versions => {
>                    :thumb => {:size => "50x50"},
>                    :medium => {:size => "640x480"}
>                }                     }
> end
>
> This is the output from WEBrick when it dies:
>
> script/server: No such file or directory - file -bi 
> "./script/../config/../publi
> c/media/media_item/tmp/1136422120.515000.5436/004.jpg"
> Output file write error --- out of disk space?
>
> There is no issue with disk space and the odd thing is it looks to 
> have gotten half way through when it dies as this is the contents of 
> the dirs:
>
> E:\rails\app_name\public\media
> \---media_item
>    \---tmp
>        \---1136422120.515000.5436
>            |   004.jpg
>            |
>            \---thumb
>                    004.jpg
>
>
> The file itself seems to be fine. The resized thumb is at 0 bytes, so 
> this is where it looks to have died when trying to write that.
>
> RMagick itself seems to work fine on its own. I wrote a small app to 
> test it and all went ok, so it would seem to be something file_column 
> related as opposed to simply RMagick itself not working.
>
> Anyone any ideas as to how to solve this issue?
>
> Running on Windows XP box if that makes any diff and using edge rails.
>
> Thanks in advance.
>

Richard Livsey wrote:
> Seems I spoke too soon when I said it was all ok.
> The comments in the earlier thread fix the issue with the ''-file
-bi''
> error, but WEBrick still dies with the following:
>
> "Output file write error --- out of disk space?"
>
> Now I''m nowhere near short of disk space and it seems to upload
the
> original file ok, as far as I can see it just dies when writing the 
> resized version to disk.
>
> Any ideas would be greatly appreciated.
>
> Thanks in advance.
>
Well I''ve fixed it now, but I''m not sure how!

I changed this line in magick_file_column (about 85) from:

File.open(dest_path, "wb", options[:permissions]) {|f| img.write f }

to

File.open(dest_path, "wb", options[:permissions]) {|f| 
f.write(img.to_blob) }

And it stops dying now.

Not a clue why... but I''m leaving it and backing away slowly!

-- 
R.Livsey
http://livsey.org

Richard Livsey wrote:
> I changed this line in magick_file_column (about 85) from:
> 
> File.open(dest_path, "wb", options[:permissions]) {|f| img.write
f }
This helped me too. I am using webrick on windows xp and :magick resize
options game me this error:

script/server: No such file or directory - file -bi
"./script/../config/../public/entry/kuva/tmp/113
6553849.406000.696/Water_lilies.jpg"
./script/../config/../vendor/plugins/file_column/lib/magick_file_column.rb:85:
[BUG] Segmentation fault
ruby 1.8.2 (2004-12-25) [i386-mswin32]

This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application''s support team for more information.

-- 
Posted via http://www.ruby-forum.com/.

Hi Richard,

thanks for investigating this mysterious windows crash. As I''m only
running unix (and the problem doesn''t appear there), I''m
hoping you
can help me a bit more...

On 1/5/06, Richard Livsey <richard@livsey.org>
wrote:
> Well I''ve fixed it now, but I''m not sure how!
>
> I changed this line in magick_file_column (about 85) from:
>
> File.open(dest_path, "wb", options[:permissions]) {|f| img.write
f }
>
> to
>
> File.open(dest_path, "wb", options[:permissions]) {|f|
> f.write(img.to_blob) }
the reason I do not want to commit this is that it requires extra main
memory as to_blob returns the complete file as one large chunk. The
whole thing looks like a RMagick bug to me, but let''s investigate.

Can you try to following on a (windows) ruby console?

* Load an image with RMagick
* Write it in the same way, file_column does, e.g.
     File.open("/some/file.jpg", "wb", 0644) { |f| img.write
f }
   Does this crash?
* What if you leave out the 0644 parameter?

Sebastian