```ruby
require "hashid/rails/version"

module Hashid
  module Rails
    # Your code goes here...
  end
end
```

Add hashid methods to ActiveRecord::Base
user
```ruby
require "hashid/rails/version"

module Hashid
  module Rails
    extend ActiveSupport::Concern

    class_methods do
      def hashids
        Hashids.new(table_name, 6)
      end

      def encode_id(id)
        hashids.encode(id)
      end

      def decode_id(id)
        hashids.decode(id).first
      end

      def hashid_find(hashid)
        find(decode_id(hashid))
      end
    end

    def encoded_id
      self.class.encode_id(id)
    end

    def to_param
      encoded_id
    end
    alias_method :hashid, :to_param
  end
end

ActiveRecord::Base.send :include, Hashid::Rails
```
assistant