Method: FileColumn::BaseUploadedFile#assign

Defined in:
lib/file_column.rb

#assign(file) ⇒ Object 



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# File 'lib/file_column.rb', line 45

def assign(file)
  if file.is_a? File
    # this did not come in via a CGI request. However,
    # assigning files directly may be useful, so we
    # make just this file object similar enough to an uploaded
    # file that we can handle it. 
    file.extend FileColumn::FileCompat
  end

  if file.nil?
    delete
  else
    if file.size == 0
      # user did not submit a file, so we
      # can simply ignore this
      self
    else
      if file.is_a?(String)
        # if file is a non-empty string it is most probably
        # the filename and the user forgot to set the encoding
        # to multipart/form-data. Since we would raise an exception
        # because of the missing "original_filename" method anyways,
        # we raise a more meaningful exception rightaway.
        raise TypeError.new("Do not know how to handle a string with value '#{file}' that was passed to a file_column. Check if the form's encoding has been set to 'multipart/form-data'.")
      end
      upload(file)
    end
  end
end