Module: Base64Image::ClassMethods

Defined in:
lib/base64_image.rb

Instance Method Summary collapse

Instance Method Details

#base64_to_binary(string_image_data) ⇒ Object 



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# File 'lib/base64_image.rb', line 20

def base64_to_binary(string_image_data)
  if String(string_image_data).match(%r{^data:(.*?);(.*?),(.*)$})
    # $1 - MIME, e.g. "image/png"
    # $2 - encoder, e.g. "base64"
    # $3 - encoded binary data
    binary_data = Base64.decode64($3)
    extension = $1.split('/')[1]
    Base64Image::StringIO.new(binary_data)
  end
end

#base64image_to(attr_name) ⇒ Object 



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# File 'lib/base64_image.rb', line 11

def base64image_to(attr_name)
  dest_attr = String(attr_name) << '='
  source_attr = 'base64_' << dest_attr
  define_method source_attr do |data|
    send dest_attr, self.class.base64_to_binary(data)
  end
  self
end