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Pretty much everyone who claims to have a REST API, in fact, does not. The closest I’ve found is the Sun Cloud API which actually defines a number of custom media types for resources and is discoverable based on a single known end-point. Everyone else, thanks for playing.
Just assign the existing attachment to another record:
new_photo = Photo.new
new_photo.image = old_photo.image
Paperclip will duplicate the file when saving.
To use this in forms, pimp your attachment container like this:
class Photo < ActiveRecord::Base
has_attached_file :image
attr_accessor :copy_of
def image_url
if copy_of
copy_of.url
else
image.url
end
end
end
And in the controller do:
new_photo = Photo.new(:copy_of => old_photo)
This is more tricky than it should be because url_for, asset_path, etc. all rely on different mechanisms.
Anyway, you can use the attached trait like this:
class ExampleController < ApplicationController
does 'host_enforcement', :for => 'some_action'
end
Short explanation:
asset_host is used for links to stylesheets and javascriptsasset_host belongs to ActionController::Base -- changes are persistent and will not be reset after a requestrewrite_options is used by the ..._path methods in the views