58 lines
1.4 KiB
Ruby
58 lines
1.4 KiB
Ruby
class Quantity < ActiveRecord::Base
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enum domain: {
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diet: 0,
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measurement: 1,
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exercise: 2
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}
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acts_as_nested_set dependent: :destroy, scope: :project
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belongs_to :project, required: false
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has_many :nutrients, dependent: :restrict_with_error
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has_many :readouts, dependent: :restrict_with_error
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has_many :exposures, dependent: :destroy
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has_one :formula, inverse_of: :quantity, dependent: :destroy, validate: true
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accepts_nested_attributes_for :formula, allow_destroy: true, reject_if: proc { |attrs|
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attrs['code'].blank?
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}
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validates :name, presence: true, uniqueness: {scope: :project_id}
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validates :domain, inclusion: {in: domains.keys}
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validate if: -> { parent.present? } do
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errors.add(:parent, :parent_domain_mismatch) unless domain == parent.domain
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end
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after_initialize do
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if new_record?
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self.domain ||= :diet
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end
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end
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def movable?(direction)
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case direction
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when :up
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self.left_sibling.present?
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when :down
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self.right_sibling.present?
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when :left
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self.parent.present?
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when :right
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left = self.left_sibling
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left.present? && (left.domain == self.domain)
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else
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false
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end
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end
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# TODO: move as an association extension module
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def self.filter(project, filters)
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quantities = all
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if filters[:domain].present?
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quantities = quantities.where(domain: domains[filters[:domain]])
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end
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quantities
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end
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end
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