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22 lines
522 B
Ruby
22 lines
522 B
Ruby
class Vehicle < ApplicationRecord
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include Accountable
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attribute :mileage_unit, :string, default: "mi"
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def mileage
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Measurement.new(mileage_value, mileage_unit) if mileage_value.present?
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end
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def purchase_price
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first_valuation_amount
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end
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def trend
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TimeSeries::Trend.new(current: account.balance_money, previous: first_valuation_amount)
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end
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private
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def first_valuation_amount
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account.entries.account_valuations.order(:date).first&.amount_money || account.balance_money
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end
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end
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