EnsureSlug Lucky Mixin

ensure_slug.cr

require "cadmium_transliterator"

module EnsureSlug
  macro included
    before_save generate_slug_if_not_exists
  end

  def generate_slug_if_not_exists
    title.value.try do |title|
      if !slug.value || slug.value.try &.empty?
        slug.value = Cadmium::Transliterator.parameterize(title)
      end
    end
  end
end