rails console等で適当にデータを突っ込む使い捨てコード

instant_data_insersion.rb

data = []
data << {:field_1 => 'abcde', :field_2 => 10, :field_3 => '2727291'}
data << {:field_1 => 'fghij', :field_2 => 200, :field_3 => '12177'}
# more data

data.each do |d|
  SomeModel.new d
  d.save!
end