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module DerivedVariables::SalesLogVariables
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def set_derived_fields!
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self.ethnic = 17 if ethnic_refused?
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if exdate.present?
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self.exday = exdate.day
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self.exmonth = exdate.month
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self.exyear = exdate.year
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end
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if hodate.present?
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self.hoday = hodate.day
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self.homonth = hodate.month
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self.hoyear = hodate.year
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end
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self.deposit = value if outright_sale? && mortgage_not_used?
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if mscharge_known.present? && mscharge_known.zero?
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self.mscharge = 0
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end
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self.pcode1, self.pcode2 = postcode_full.split(" ") if postcode_full.present?
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self.totchild = total_child
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self.totadult = total_adult + total_elder
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self.hhmemb = totchild + totadult
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self.hhtype = household_type
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end
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private
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def total_elder
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ages = [age1, age2, age3, age4, age5, age6]
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ages.count { |age| age.present? && age >= 60 }
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end
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def total_child
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(2..6).count do |i|
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age = public_send("age#{i}")
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relat = public_send("relat#{i}")
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age.present? && ((age < 20 && %w[C].include?(relat)))
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end
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end
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def total_adult
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total = age1.present? && age1.between?(16, 59) ? 1 : 0
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total + (2..6).count do |i|
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age = public_send("age#{i}")
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relat = public_send("relat#{i}")
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age.present? && ((age.between?(20, 59) || age.between?(18, 19) && relat != "C"))
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end
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end
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def household_type
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return unless total_elder && total_adult && totchild
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if only_one_elder?
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1
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elsif only_two_elders?
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2
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elsif only_one_adult?
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3
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elsif only_two_adults?
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4
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elsif one_adult_with_at_least_one_child?
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5
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elsif at_least_two_adults_with_at_least_one_child?
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6
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else
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9
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end
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end
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def at_least_two_adults_with_at_least_one_child?
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total_elder.zero? && total_adult >= 2 && totchild >= 1
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end
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def one_adult_with_at_least_one_child?
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total_elder.zero? && total_adult == 1 && totchild >= 1
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end
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def only_two_adults?
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total_elder.zero? && total_adult == 2 && totchild.zero?
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end
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def only_one_adult?
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total_elder.zero? && total_adult == 1 && totchild.zero?
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end
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def only_two_elders?
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total_elder == 2 && total_adult.zero? && totchild.zero?
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end
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def only_one_elder?
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total_elder == 1 && total_adult.zero? && totchild.zero?
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end
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end
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