Module: WeightedRandom::ClassMethods

Defined in:: lib/weighted_random.rb

Instance Method Summary collapse

#weighted_rand ⇒ Object

Instance Method Details

#weighted_rand ⇒ `Object`



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# File 'lib/weighted_random.rb', line 13

def weighted_rand
  self.where("cumulative_weight > #{Kernel.rand(self.maximum('cumulative_weight'))}").order('cumulative_weight').limit(1).first
end