From: Gaspard Bucher <gaspard@...>
Date: 2008-08-26T05:02:21+09:00
Subject: Re: RMagick write fails / to_blob works

Image#write's argument is in fact a String (f.path), not the Tempfile  
object itself...

> Gaspard Bucher wrote:
>> I am trying to use @img.write(path) but it's not working (zero bytes
>> written). Using "to_blob" works.
>>
>>
>>     f = Tempfile.new('tmp_img')
>> FAILING CODE:
>>     @img.write(f.path)
>>
>> WORKING CODE:
>>     File.open(f.path, 'wb') do |f|
>>       f.syswrite(@img.to_blob)
>>     end
>
> Image#write doesn't know what to do with a Tempfile object. It can  
> only
> accept a string or a File object that's been opened for output.
>
> Image#write calls directly into ImageMagick, and ImageMagick doesn't
> know anything about Ruby objects like Tempfiles.
> -- 
> Posted via http://www.ruby-forum.com/.
>