Simple form association custom label name

Question

I have been struggling with what I perceive to be a simple problem:

Working in Rails 3.0.8 with the simple_form 1.4 gem.

I have two models, owners and owner_

Answer 1

You'll have to use the :label_method option for this.

<%= f.association :owner_type, :include_blank => false, :label_method => lambda { |owner| "#{owner.name} | #{owner.subtype_name}" } %>

or, if you define a select_label method on the owner's class, you can do

<%= f.association :owner_type, :include_blank => false, :label_method => :select_label %>

Answer 2

The easiest way to do this is implement an method to_label on your Model. Like this:

class OwnerType < ActiveRecord::Base
  def to_label
    "#{name} | #{subtype_name}"
  end
end

SimpleForm by default will search fot this methods on your model and use it as label_method, in this order:

:to_label, :name, :title, :to_s

You can also change this option on your simple_form.rb initializer, or you can pass a block or a method to :label_method option of your input.