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ruby-on-railsrubygemsuniquecoupon

Simple coupon generator in rails

I have working on this from quite a long time but didn't get anything useful, all i want to know is how to add a simple random coupon generator. I have a rails app where users can check offers of restaurant, salon etc now i want to add a system so that users can generate a coupon and show that coupon to avail offers.

Solution

  • You don't mention what sort of coupon format you require and I am sure there are a bunch of gems that do similar things. I guess one approach is to use a unique code that you can generate and then tag a user_id to the end of it to ensure uniqueness across many codes.

    def generate_coupon_code(user_id)
  characters = %w(A B C D E F G H J K L M P Q R T W X Y Z 1 2 3 4 5 6 7 8 9)
  code = ''

  4.times { code << characters.sample }
  code << user_id.to_s

  code
end