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muZk/gist:961af2e4c90fe48a399313b6858c21e2

Created January 29, 2018 13:53
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gistfile1.txt
# Events
before_save :set_number
def set_number
if user.present?
self.number = user.events.count
end
end
# EventsController
def show
event = user.events.find_by!(number: params[:id])
end
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