From: Tim Hunter <TimHunter@...>
Date: 2008-08-26T07:47:20+09:00
Subject: Re: RMagick write fails / to_blob works

Serabe wrote:
> Hi, Gaspard and Tim:
> 
> I've tried changing:
> 
>  @img.write(f.path)
> 
> to
> 
>  @img.write(f.path+'.jpg')
> 
> and it works. Maybe RMagick just needs to check if there is an
> extension ImageMagick can use.
> 
> Cheers,
> 
> Serabe
> 

Duh. I had to figure this out just a few weeks ago. I should've 
remembered. I must be getting old.

The Tempfile path ends in .0, which is not an extension ImageMagick can 
use. As Serabe so intelligently points out, adding a valid extension 
works. You can also add a prefix: "jpeg:" + f.path.

Thanks for being smarter than me, Serabe!

-- 
RMagick: http://rmagick.rubyforge.org/