lib/active_record_distinct_on/railtie.rb
require 'active_record_distinct_on'
module ActiveRecordDistinctOn
class Railtie < ::Rails::Railtie
initializer 'active_record_distinct_on.monkey_patch_active_record' do
ActiveSupport.on_load(:active_record) do
ActiveRecordDistinctOn.install
end
end
end
end