14 lines
723 B
Ruby
14 lines
723 B
Ruby
class QuantityValue < ActiveRecord::Base
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belongs_to :quantity, required: true
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belongs_to :unit, required: true
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# Uniqueness is checked exclusively on the other end of association level.
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# Otherwise validation may not pass when multiple Values are updated at once
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# and some quantity_id is moved from one Value to the other (without duplication).
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# For the same reason Value quantity_id uniqueness has to be checked on the
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# other end when multiple Values are first created. Relying on local check
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# only would make all newly added records pass as valid despite duplications.
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#validates :quantity, uniqueness: {scope: [:measurement_id, :unit_id]}
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#validates :quantity, uniqueness: {scope: :food_id}
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end
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