Formatting text in the model with Ruby on Rails -

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how can make mvc?

  class product < activerecord::base     validates :price, :presence => true      def to_s       "#{name} @ #{number_to_currency(price)}"     end    end

i need format price currency, can't use number_to_currency, because in model. pass view this, doesn't feel clean.

a solution define producthelper module in app/helpers implements method want, product_name_with_price:

module producthelper   def product_name_with_price(product)     "#{product.name} @ #{number_to_currency(product.price)}"   end end

and in view

<%= product_name_with_price(@product) %>

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