ruby on rails - Form_for select field, concatenating data into the display string -

i trying use form_for collection_select display select field options of account types.

its occurred me easier user if see price of type in each select option

this not-working code:

<%= a.collection_select :account_type, accounttype.all, :id, (:name+" - "+number_to_currency(:price)) %>

how can concatenate values (:name+" - "+number_to_currency(:price)) work , not throw error?

you can use :text_method option set displayed text in select dropdown.

in accounttype model, define method this:

  def name_with_price     "#{name} - $#{price}"   end

then, in view, can use:

<%= a.collection_select :account_type, nil, accounttype.all, :id, :name_with_price %>

Brande