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vertden/gist:4b871fbe65ab7c65627d23db284f9dd1

Created August 6, 2019 17:27
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gistfile1.txt
Pledge.all.to_a.group_by{|p| p.created_at.day}.map{|day,p| [day, p.size]}.inject({}) do |q,w|
q.merge!({w[0]=>w[1]})
end
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