local scope example

gistfile1.rb

module Reporting::OrderScopes

  # Returns orders with the scopes injected.
  def self.inject_to(orders)
    orders.scoped.extend(self)
  end

  # scopes

  def payed
    where("paid_at IS NOT NULL")
  end

  def payed_today
    paid.where("DATE(paid_at) = ?", Date.today)
  end

  def for_daily_report
    select(:id, :payed_at, :sum)
  end

end