Change generated template.

lib/generators/simple_form/templates/config/initializers/simple_form.rb

@@ -1,20 +1,16 @@
 # Use this setup block to configure all options available in SimpleForm.
 SimpleForm.setup do |config|
-  # Components used by the form builder to generate a complete input. You can remove
-  # any of them, change the order, or even add your own components to the stack.
-  # config.components = [ :placeholder, :label_input, :hint, :error ]
-
-  # Default tag used on hints.
-  # config.hint_tag = :span
-
-  # CSS class to add to all hint tags.
-  # config.hint_class = :hint
-
-  # CSS class used on errors.
-  # config.error_class = :error
-
-  # Default tag used on errors.
-  # config.error_tag = :span
+  # Components are used by the form builder to generate a complete input.
+  # You can remove any of them, change the order or even add your own
+  # components to the stack. The options given to the components method
+  # are used by the wrapper input. You can remove them (to remove the wrapper)
+  # or change them as needed.
+  config.components :tag => :div, :class => :input, :error_class => :field_with_errors do |b|
+    b.use :placeholder
+    b.use :label_input
+    b.use :hint,  :tag => :span, :class => :hint
+    b.use :error, :tag => :span, :class => :error
+  end
 
   # Method used to tidy up errors.
   # config.error_method = :first
@@ -28,15 +24,6 @@ SimpleForm.setup do |config|
   # ID to add for error notification helper.
   # config.error_notification_id = nil
 
-  # You can wrap all inputs in a pre-defined tag.
-  # config.wrapper_tag = :div
-
-  # CSS class to add to all wrapper tags.
-  # config.wrapper_class = :input
-
-  # CSS class to add to the wrapper if the field has errors.
-  # config.wrapper_error_class = :field_with_errors
-
   # You can wrap a collection of radio/check boxes in a pre-defined tag, defaulting to none.
   # config.collection_wrapper_tag = nil