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class NutrientMeasurement < ApplicationRecord
include NutrientVector
validates :measured_on, presence: true
validates :measured_on, uniqueness: true
def self.data_series_for(*nutrients)
nutrients.map do |formula|
{ name: formula, data: self.order(:measured_on).pluck(:measured_on, formula) }
end
end
private
def nutrient_values
@nutrient_values ||= NutrientVector::NUTRIENT_KEYS.index_with do |k|
read_attribute(k).to_f
end
end
end
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