Randomize filenames for paperclip upload

Ruby on Rails
2

Here’s the attachment definition that did this for me on my last project:

  has_attached_file :file,
    styles: { large: '620x410>' },
    convert_options: { all: '-strip' },
    s3_permissions: { original: :private },
    s3_headers: {
      'Cache-Control' => 'max-age=315576000',
      'Expires' => 10.years.from_now.httpdate
    },
    path: 'public/system/:class/:hash.:extension',
    url: '/system/:class/:hash.:extension',
    hash_secret: 'really-long-random-generated-string-not-publicly-accessible'

The key is the :hash interpolation and the :hash_secret argument. Here’s the bit from the readme on this: GitHub - thoughtbot/paperclip: Easy file attachment management for ActiveRecord