Hanami Sluggable (Slugify) Module

sluggable.rb

# lib/your_app/ext/sluggable.rb

module Sluggable
  def self.included(base)
    base.extend(ClassMethods)
  end

  module ClassMethods
    def sluggable(field)
      @field = field
    end

    def field
      @field
    end
  end

  def slug
    send(self.class.field).slugify
  end
end

USAGE

class MyEntity
 include Hanami::Entity
 include Sluggable

 attributes :name, :slug, :other_field, :yet_another_field
 sluggable :name
end

Do not forget to create :slug field in database and mapping it to its entity