Cut the runtime by queueing the changes in memory and deferring database writes

Made some unspecified behavior explicit

app/models/tournament.rb

@@ -16,13 +16,11 @@ class Tournament < ActiveRecord::Base
   	def createCustomWeights(value)
 		self.weights.destroy_all
 		if value == 'hs'
-			@weights = [106,113,120,132,138,145,152,160,170,182,195,220,285]
-		end
-		@weights.each do |w|
-			newWeight = Weight.new
-			newWeight.max = w
-			newWeight.tournament_id = self.id
-			newWeight.save
+			Weight::HS_WEIGHT_CLASSES.each do |w|
+				self.weights.create(max: w)
+			end
+		else
+			raise "Unspecified behavior"
 		end
 	end