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Rails(Ruby)でBase64化された画像を取り回すときのSnippet

Rails

Last updated at 2019-12-04Posted at 2018-03-06

エンコード

image = File.read(Rails.root.join('test', 'files', 'sample.jpg'))
b64_image = Base64.strict_encode64(image)

デコード

bin = Base64.decode64(b64_image)

Carrierwaveで保存

def image_from_base64(b64)
  bin = Base64.decode64(b64)
  file = Tempfile.new('img')
  file.binmode
  file << bin
  file.rewind

  self.image = file
end

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