19 lines
722 B
Ruby
19 lines
722 B
Ruby
# frozen_string_literal: true
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class ExerciseTip < ApplicationRecord
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belongs_to :exercise
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belongs_to :tip
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belongs_to :parent_exercise_tip, class_name: 'ExerciseTip', optional: true
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attr_accessor :children
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# Ensure no parent tip is set if current tip has rank == 1
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validates :rank, exclusion: {in: [1]}, if: :parent_exercise_tip_id?
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validate :tip_chain?, if: :parent_exercise_tip_id?
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def tip_chain?
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# Ensure each referenced parent exercise tip is set for this exercise
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errors.add :parent_exercise_tip, I18n.t('activerecord.errors.messages.together', attribute: I18n.t('activerecord.attributes.exercise_tip.tip')) unless ExerciseTip.exists?(exercise: exercise, tip: parent_exercise_tip)
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end
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end
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