scinote-web/app/models/checklist_item.rb

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class ChecklistItem < ApplicationRecord
auto_strip_attributes :text, nullify: false
validates :text,
presence: true,
length: { maximum: Constants::TEXT_MAX_LENGTH }
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validates :checklist, presence: true
validates :checked, inclusion: { in: [true, false] }
validates :position, uniqueness: { scope: :checklist }, unless: -> { position.nil? }
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belongs_to :checklist,
inverse_of: :checklist_items
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belongs_to :created_by,
foreign_key: 'created_by_id',
class_name: 'User',
optional: true
belongs_to :last_modified_by,
foreign_key: 'last_modified_by_id',
class_name: 'User',
optional: true
after_destroy :update_positions
# conditional touch excluding checked updates
after_destroy :touch_checklist
after_save :touch_checklist
after_touch :touch_checklist
private
def touch_checklist
# if only checklist item checked attribute changed, do not touch checklist
return if saved_changes.keys.sort == %w(checked updated_at)
# rubocop:disable Rails/SkipsModelValidations
checklist.touch
# rubocop:enable Rails/SkipsModelValidations
end
def update_positions
transaction do
checklist.checklist_items.order(position: :asc).each_with_index do |checklist_item, i|
checklist_item.update!(position: i)
end
end
end
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end