Hi,
I'm using attachment_fu with great success, but have run into a
requirement that I'd like to solve elegantly -- but I've outstripped my
ruby skills.
I have a class that returns a hash of thumbnail definitions, like so:
class Thumb
def self.get_thumbs(style)
return { :small => "100x50", :large => "200x100" } if style
== 'landscape'
return { :small => "50x100", :large => "100x200" } if style
== 'portrait'
end
end
My attachment model is defined like this:
class Photo < ActiveRecord::Base
has_attachment :content_type => :image,
:thumbnails => Thumb.get_thumbs(??????)
[...more stuff ...]
end
My photos controller has the following line:
@photo = Photo.new(params[:photo])
My question:
I'd like dynamically determine what value to set to Thumbnail.get_thumbs
based on values set in the Photo.new constructor. Is this possible?
I've fooled around with attr_accessors, lambdas, etc, but, I can't seem
to do what I want. Is it possible to make such a run-time decision as
I'm trying to make?
Which is to say, if params[:photo][:style] = 'portrait', i'd like to cut
the thumbnails accordingly?
Does anyone have an elegant solution for this?
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