How can I set paperclip's storage mechanism based on the current Rails environment?

Question

I have a rails application that has multiple models with paperclip attachments that are all uploaded to S3. This app also has a large test suite that is run quite often. Th

Answer 1

I like Barry's suggestion better and there's nothing keeping you from setting the variable to a hash, that can then be merged with the paperclip options.

In config/environments/development.rb and test.rb set something like

PAPERCLIP_STORAGE_OPTIONS = {}

And in config/environments/production.rb

PAPERCLIP_STORAGE_OPTIONS = {:storage => :s3, 
                               :s3_credentials => "#{Rails.root}/config/s3.yml",
                               :path => "/:style/:filename"}

Finally in your paperclip model:

has_attached_file :image, {
    :styles => {:thumb => '50x50#', :original => '800x800>'}
}.merge(PAPERCLIP_STORAGE_OPTIONS)

Update: A similar approach was recently implemented in Paperclip for Rails 3.x apps. Environment specific settings can now be set with config.paperclip_defaults = {:storage => :s3, ...}.