soft delete record

soft_delete.rb

module SoftDelete
  extend ActiveSupport::Concern

  included do
    scope :trashed, -> { where.not(deleted_at: nil) }
    scope :not_trashed, -> { where(deleted_at: nil) }
    scope :kept, -> { not_trashed }
    
    define_model_callbacks :trash, :untrash
  end

  module ClassMethods
    def trash_all
      kept.each(&:trash)
    end

    def trash_all!
      kept.each(&:trash!)
    end

    def untrash_all
      trashed.each(&:untrash)
    end

    def untrash_all!
      trashed.each(&:untrash!)
    end
  end
  
  def trashed?
    deleted_at?
  end
  
  def not_trashed?
    !trashed?
  end

  alias kept? :not_trashed?

  def trash
    return false if trashed?
    
    run_callbacks(:trash) do
      update deleted_at: Time.current
    end
  end

  def trash!
    return false if trashed?
    
    run_callbacks(:trash) do
      update! deleted_at: Time.current
    end
  end

  def untrash
    return false if not_trashed?
    
    run_callbacks(:untrash) do
      update deleted_at: nil
    end
  end

  def untrash!
    return false if not_trashed?
    
    run_callbacks(:untrash) do
      update! deleted_at: nil
    end
  end
end