Module: Marty::ContentHandler

Defined in:
lib/marty/content_handler.rb

Constant Summary collapse

GEN_FORMATS = 
{
  'csv'  => ['text/csv',                 'download'],
  'zip'  => ['application/zip',          'download'],
  'xlsx' => ['application/vnd.ms-excel', 'download'],
  'html' => ['text/html',                'download'],
  'txt'  => ['text/plain',               'inline'],
  'json' => ['application/json',         'download'],

  # hacky: default format is JSON
  nil    => ['application/json',         'download'],
}

Class Method Summary collapse

Class Method Details

.export(data, format, name) ⇒ Object 



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# File 'lib/marty/content_handler.rb', line 19

def self.export(data, format, name)
  begin
    case format
    when 'csv'
      # Somewhat hacky, if data is string => pass through as CSV.
      # Should generalize to other data types, not just CSV.
      res = data.is_a?(String) ? data : Marty::DataExporter.to_csv(data)
    when 'xlsx'
      res = Marty::Xl.spreadsheet(data).to_stream.read
    when 'zip'
      res = to_zip(data)
    when nil, 'json'
      res, format = data.to_json, 'json'
    when 'html'
      res = data.to_s
    else
      res, format = { error: "Unknown format: #{format}" }.to_json, 'json'
    end
  rescue StandardError => e
    res, format =
      { error: "Failed conversion #{format}: #{e}" }.to_json, 'json'
  end

  type, disposition = GEN_FORMATS[format]

  [res, type, disposition, "#{name}.#{format}"]
end

.log_and_raise(err) ⇒ Object 



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# File 'lib/marty/content_handler.rb', line 14

def self.log_and_raise(err)
  Marty::Util.logger.error err
  raise err
end