15 lines
407 B
Ruby
15 lines
407 B
Ruby
class Nutrient < ActiveRecord::Base
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belongs_to :ingredient, inverse_of: :nutrients, required: true
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belongs_to :quantity, required: true
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belongs_to :unit, required: true
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validates :quantity, uniqueness: {scope: :ingredient_id}
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validates :amount, numericality: {greater_than_or_equal_to: 0.0}
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after_initialize do
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if new_record?
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self.unit ||= self.ingredient.ref_unit
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end
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end
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end
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