fix simple_form deprecations

app/inputs/date_picker_input.rb

@@ -1,5 +1,6 @@
 class DatePickerInput < SimpleForm::Inputs::StringInput
-  def input
-    @builder.text_field(attribute_name, input_html_options.merge({class: 'datepicker'}))
+  def input(wrapper_options)
+    options = merge_wrapper_options(input_html_options, wrapper_options)
+    @builder.text_field attribute_name, options.merge(class: 'datepicker')
   end
 end

app/inputs/date_picker_time_input.rb

@@ -5,7 +5,8 @@
 # @see http://stackoverflow.com/a/20317763/2866660
 # @see https://github.com/einzige/date_time_attribute
 class DatePickerTimeInput < SimpleForm::Inputs::StringInput
-  def input
+  def input(wrapper_options)
+    options = merge_wrapper_options(input_html_options, wrapper_options)
     # Date format must match datepicker's, see app/assets/application.js .
     # And for html5 inputs, match RFC3339, see http://dev.w3.org/html5/markup/datatypes.html#form.data.date .
     # In the future, use html5 date&time inputs. This needs modernizr or equiv. to avoid
@@ -13,8 +14,8 @@ class DatePickerTimeInput < SimpleForm::Inputs::StringInput
     value = @builder.object.send attribute_name
     date_options = {as: :string, class: 'input-small datepicker'}
     time_options = {as: :string, class: 'input-mini'}
-    @builder.input_field("#{attribute_name}_date_value", input_html_options.merge(date_options)) + ' ' +
-    @builder.input_field("#{attribute_name}_time_value", input_html_options.merge(time_options))
+    @builder.input_field("#{attribute_name}_date_value", options.merge(date_options)) + ' ' +
+    @builder.input_field("#{attribute_name}_time_value", options.merge(time_options))
     # time_select requires a date_select
     #@builder.time_select("#{attribute_name}_time", {ignore_date: true}, input_html_options.merge(time_options))
   end

app/inputs/delta_input.rb

@@ -2,24 +2,25 @@
 
 class DeltaInput < SimpleForm::Inputs::StringInput
   # for now, need to pass id or it won't work
-  def input
-    @input_html_options[:type] = 'text'
-    @input_html_options[:data] ||= {}
-    @input_html_options[:data][:delta] ||= 1
-    @input_html_options[:autocomplete] ||= 'off'
+  def input(wrapper_options)
+    options = merge_wrapper_options(input_html_options, wrapper_options)
+    options[:type] = 'text'
+    options[:data] ||= {}
+    options[:data][:delta] ||= 1
+    options[:autocomplete] ||= 'off'
     # TODO get generated id, don't know how yet - `add_default_name_and_id_for_value` might be an option
 
     template.content_tag :div, class: 'delta-input input-prepend input-append' do
-      delta_button('−', -1) + super + delta_button('+', 1)
+      delta_button('−', -1, options) + @builder.text_field(attribute_name, options) + delta_button('+', 1, options)
     end
   end
-  #template.button_tag('−', type: :submit, data: {decrement: @input_html_options[:id]}, tabindex: -1, class: 'btn') +
+  #template.button_tag('−', type: :submit, data: {decrement: options[:id]}, tabindex: -1, class: 'btn') +
 
   private
 
-  def delta_button(title, direction)
-    data = { (direction>0 ? 'increment' : 'decrement') => @input_html_options[:id] }
-    delta = direction * @input_html_options[:data][:delta]
+  def delta_button(title, direction, options)
+    data = { (direction>0 ? 'increment' : 'decrement') => options[:id] }
+    delta = direction * options[:data][:delta]
     template.button_tag(title, type: :button, name: 'delta', value: delta, data: data, tabindex: -1, class: 'btn')
   end
 end

config/initializers/simple_form.rb

@@ -98,7 +98,7 @@ SimpleForm.setup do |config|
   config.label_class = 'control-label'
 
   # You can define the class to use on all forms. Default is simple_form.
-  config.form_class = 'form-horizontal'
+  config.default_form_class = 'form-horizontal'
 
   # You can define which elements should obtain additional classes
   # config.generate_additional_classes_for = [:wrapper, :label, :input]