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Ruby on Rails is an open-source web development framework written in Ruby. If your question code is written in Ruby on Rails, tag with Ruby as the language tag. Many things are defined by convention, freeing you from having to re-invent things to stay productive.
3
votes
Accepted
Reduce the calls to database for validations in rails
You can memorize result using ||=
def referred_by_id
@reffered ||= User.where(referral_code: referer_referral_code).first.id
end
def validates_presence_of_referer_referral_code
u = referred_ …