23 lines
689 B
Ruby
23 lines
689 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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unless ExerciseTip.exists?(
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exercise:, id: parent_exercise_tip
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)
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errors.add :parent_exercise_tip, :together, attribute: ExerciseTip.human_attribute_name('tip')
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end
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end
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end
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