Paperclip s3 copy image

Rails
1

Hello All,

I have an image in paperclip s3 amazon bucket.
I want to copy that image & save it into another model.
But I also want to create a new image with another name.
how can I achieve it?

Example:-

I have an image name a.png in s3 bucket in a model named “sample.rb”.
I have to take the same image(a.png) and save it as another image in
paperclip s3 bucket with different name(b.png).

Any suggestions?

Thanks,
Avi

2

On Aug 7, 2013, at 5:59 AM, Avi wrote:

I have to take the same image(a.png) and save it as another image in paperclip
s3 bucket with different name(b.png).

Any suggestions?

I haven’t tried this (but I will need to this week). What I would do is
spin up a new object to contain the original image, and then use
open-uri to load the file data from the original into it. I found this
bit of code on SO; I used it to transfer file data from CarrierWave to
Paperclip already, so it’s been tested to work:

(my has_attached_file is called blob, that’s what blob means below)

def blob_url(url)
begin
require “open-uri”
f = open(url)
def f.original_filename ; base_uri.path.split(’/’).last ; end

  self.blob = f
rescue OpenURI::HTTPError => e
  raise(e) unless e.message == "404 Not Found"
ensure
  f.close if f
end

end

So then you could do something like this:

@original = YourModel.find(original_id)
@copy = YourModel.new
@copy.blob_url(@original.blob.expiring_url)
@copy.save

That will fetch the original file data, and store it again in a new path
for the new object. It’s not particularly elegant, but given that you
definitely don’t want to just reference the same Paperclip storage
object from two different AR objects (because one of them could be
deleted, nuking the files for both) I believe it’s the way forward here.

Walter