Terminator is not public.

README.rdoc

@@ -170,14 +170,14 @@ Instead of using the text and mark options from required, you can also overwrite
 You have a set of options available to configure SimpleForm:
 
 * component_tag => default tag used in components. by default is :span.
+
 * components    => stack of components used in form builder to create the input.
                    You can add or remove any of this components as you need.
-* terminator    => the last component will call this terminator. By default it's
-                   a lambda returning an empty string.
-* collection_label_methods => all methods available to detect the label for a
-                              collection.
-* collection_value_methods => all methods available to detect the value for a
-                              collection.
+
+* collection_label_methods => all methods available to detect the label for a collection.
+
+* collection_value_methods => all methods available to detect the value for a collection.
+
 * wrapper_tag => wrapper tag to wrap the inputs. By default no wrapper exists.
 
 To do it so you just need to create a file inside your initializer folder and use the configurations as follows:

lib/simple_form.rb

@@ -20,13 +20,9 @@ module SimpleForm
     SimpleForm::Components::Error
   ]
 
-  # The terminator sent to the last component
-  mattr_accessor :terminator
-  @@terminator = lambda { "" }
-
   # Series of attemps to detect a default label method for collection
   mattr_accessor :collection_label_methods
-  @@collection_label_methods = [ :name, :title, :to_s ]
+  @@collection_label_methods = [ :to_label, :name, :title, :to_s ]
 
   # Series of attemps to detect a default value method for collection
   mattr_accessor :collection_value_methods

lib/simple_form/form_builder.rb

@@ -2,6 +2,8 @@ module SimpleForm
   class FormBuilder < ActionView::Helpers::FormBuilder
     attr_reader :template, :object_name, :object, :attribute, :column, :input_type, :options
 
+    TERMINATOR = lambda { "" }
+
     # Basic input helper, combines all components in the stack to generate input
     # html  based on options the user define and some guesses through
     # database column information. By default a call to input will generate
@@ -64,7 +66,7 @@ module SimpleForm
     def input(attribute, options={})
       define_simple_form_attributes(attribute, options)
 
-      component = SimpleForm.terminator
+      component = TERMINATOR
       SimpleForm.components.reverse.each do |klass|
         next if @options[klass.basename] == false
         component = klass.new(self, component)
@@ -131,7 +133,7 @@ module SimpleForm
     #
     def error(attribute, options={})
       define_simple_form_attributes(attribute, :error_html => options)
-      SimpleForm::Components::Error.new(self, SimpleForm.terminator).call
+      SimpleForm::Components::Error.new(self, TERMINATOR).call
     end
 
     # Creates a hint tag for the given attribute. Accepts a symbol indicating
@@ -147,7 +149,7 @@ module SimpleForm
     def hint(attribute, options={})
       attribute, options[:hint] = nil, attribute if attribute.is_a?(String)
       define_simple_form_attributes(attribute, :hint => options.delete(:hint), :hint_html => options)
-      SimpleForm::Components::Hint.new(self, SimpleForm.terminator).call
+      SimpleForm::Components::Hint.new(self, TERMINATOR).call
     end
 
     # Creates a default label tag for the given attribute. You can give a label
@@ -168,7 +170,7 @@ module SimpleForm
       options = args.extract_options!
       define_simple_form_attributes(attribute, :label => options.delete(:label),
         :label_html => options, :required => options.delete(:required))
-      SimpleForm::Components::Label.new(self, SimpleForm.terminator).call
+      SimpleForm::Components::Label.new(self, TERMINATOR).call
     end
 
   private

test/components/error_test.rb

@@ -8,7 +8,7 @@ class ErrorTest < ActionView::TestCase
       f.input_type = type
       f.options    = options
 
-      error = SimpleForm::Components::Error.new(f, SimpleForm.terminator)
+      error = SimpleForm::Components::Error.new(f, SimpleForm::FormBuilder::TERMINATOR)
       concat(error.call)
       yield error if block_given?
     end

test/components/hint_test.rb

@@ -8,7 +8,7 @@ class ErrorTest < ActionView::TestCase
       f.input_type = type
       f.options    = options
 
-      hint = SimpleForm::Components::Hint.new(f, SimpleForm.terminator)
+      hint = SimpleForm::Components::Hint.new(f, SimpleForm::FormBuilder::TERMINATOR)
       concat(hint.call)
       yield hint if block_given?
     end

test/components/input_test.rb

@@ -13,7 +13,7 @@ class InputTest < ActionView::TestCase
       f.input_type = type
       f.options    = options
 
-      input = SimpleForm::Components::Input.new(f, SimpleForm.terminator)
+      input = SimpleForm::Components::Input.new(f, SimpleForm::FormBuilder::TERMINATOR)
       concat(input.call)
       yield input if block_given?
     end

test/components/label_test.rb

@@ -12,7 +12,7 @@ class LabelTest < ActionView::TestCase
       f.input_type = type
       f.options    = options
 
-      label = SimpleForm::Components::Label.new(f, SimpleForm.terminator)
+      label = SimpleForm::Components::Label.new(f, SimpleForm::FormBuilder::TERMINATOR)
       concat(label.call)
       yield label if block_given?
     end