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32 lines
904 B
Ruby
32 lines
904 B
Ruby
# frozen_string_literal: true
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class StepOrderableElement < ApplicationRecord
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validates :position, uniqueness: { scope: :step }
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validate :check_step_relations
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around_destroy :decrement_following_elements_positions
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belongs_to :step, inverse_of: :step_orderable_elements, touch: true
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belongs_to :orderable, polymorphic: true, inverse_of: :step_orderable_element
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private
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def check_step_relations
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if step != orderable.step
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errors.add(
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:step_orderable_element,
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I18n.t('activerecord.errors.models.step_orderable_element.attributes.step.wrong_step')
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)
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end
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end
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def decrement_following_elements_positions
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step.with_lock do
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yield
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step.step_orderable_elements.where('position > ?', position).find_each do |step_orderable_element|
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step_orderable_element.position -= 1
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step_orderable_element.save!
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end
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end
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end
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end
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