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Asked: 2026-05-25T18:36:39+00:00

Using Paperclip, I want to grab an image from a URL like this: require

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Using Paperclip, I want to grab an image from a URL like this:

require 'open-uri'

user.photo = open(url)

The problem is that I then wind up with a filename like ‘open-uri20110915-4852-1o7k5uw’. Is there any way I can change the filename on user.photo?

As an added twist, Paperclip is storing my files on S3, so it’d be even better if I could set the filename I want in the initial assignment, so images get uploaded to the right S3 key. Something like this:

user.photo = open(url), :filename => URI.parse(url).path
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1 Answer

  1. Editorial Team

    You can write the filename back to your instance via:

     photo.instance_write(:file_name, new_file_name)

    So if your source URL is like:

     http://example.com/foo.jpg

    You can first parse the name from the URL (to get foo.jpg) and then write it back to the instance using the above instance_write method.

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