Question

I’d like to generate a select form field, where a user can select one entry of another model. Currently I do it this way:

<%= f.select :wg, Warengruppe.all %>
and in my Warengruppe model I defined the to_s method this way:

  def to_s
    return self.titel
  end

So I get an array of strings. But now I want to store just the id of the Warengruppe entry, so I need an array of [[id,title],[id,title]....]. Well I can write a method, that generates the array, but isn’t there a more rails way to do that?

Answer 1

What you’re looking for is;

f.select(:wg, Warengruppe.all.collect {|w| [ w.titel, w.id ] })