Rails - Mar 2011 - Correct pattern for manually adding Paperclip attachment?

Can anyone point me to the correct pattern for manually adding a
Paperclip attachment?

By manual, I mean that I''m not using an upload form.  For example,
I''m
programmatically creating the attachment (i.e. an CSV file, or Excel
document).  I''ve noticed that 1) Paperclip prefers to use
Rail''s custom
Tempfile class, and 2) that Paperclip prefers to move the file. 3) On
Windows, I''ve noticed it doesn''t like it when the file path is
the same
place it wants to move it to; it fails, whereas on Mac OS X (or Unix) is
does not fail.

I''ve tried creating the file in Rail''s tmp folder first, and
I''ve also
created a fake Uploadfile class which has the original_filename and
content_type accessors.  However, I''m not clear on the proper pattern.
Should I just set the attachment property name to the
File/Uploadfile/Tempfile? Should I use assign?

I''ve noticed with my Excel file, that Paperclip corrupts it after
moving
it.  My guess is that it is saving the file in text mode instead of
binary.

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class Document < ActiveRecord::Base
   has_attached_file :file
end

Document.new :file =>
File.open(''C:\Whatever\the\path\is.xls'')

Would it work for you?

On Mon, Mar 14, 2011 at 8:41 PM, Edward Stembler
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Can anyone point me to the correct pattern for manually adding a
> Paperclip attachment?
>
> By manual, I mean that I''m not using an upload form.  For example,
I''m
> programmatically creating the attachment (i.e. an CSV file, or Excel
> document).  I''ve noticed that 1) Paperclip prefers to use
Rail''s custom
> Tempfile class, and 2) that Paperclip prefers to move the file. 3) On
> Windows, I''ve noticed it doesn''t like it when the file
path is the same
> place it wants to move it to; it fails, whereas on Mac OS X (or Unix) is
> does not fail.
>
> I''ve tried creating the file in Rail''s tmp folder first,
and I''ve also
> created a fake Uploadfile class which has the original_filename and
> content_type accessors.  However, I''m not clear on the proper
pattern.
> Should I just set the attachment property name to the
> File/Uploadfile/Tempfile? Should I use assign?
>
> I''ve noticed with my Excel file, that Paperclip corrupts it after
moving
> it.  My guess is that it is saving the file in text mode instead of
> binary.
>
> --
> Posted via http://www.ruby-forum.com/.
>
> --
> You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
> To post to this group, send email to
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> To unsubscribe from this group, send email to
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> For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.
>
>
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