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skarger/n_plus_1.rb

Last active June 20, 2019 22:31
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n_plus_1.rb
# 1 query to get all 3 sports
sports = Sport.all
# N == 3 queries to get each sport's workouts
sports.each do |sport|
puts sport.name
puts sport.workouts.pluck(:notes).join("\n")
end
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