Actualizar plugin Additionals a 3.0.0

plugins/additionals/app/helpers/additionals_select2_helper.rb

@@ -0,0 +1,13 @@
+module AdditionalsSelect2Helper
+  def additionals_select2_tag(name, option_tags = nil, options = {})
+    s = select_tag(name, option_tags, options)
+    s << hidden_field_tag("#{name}[]", '') if options[:multiple] && options.fetch(:include_hidden, true)
+
+    s + javascript_tag("select2Tag('#{sanitize_to_id name}', #{options.to_json});")
+  end
+
+  # Transforms select filters of +type+ fields into select2
+  def additionals_transform_to_select2(type, options = {})
+    javascript_tag("setSelect2Filter('#{type}', #{options.to_json});") unless type.empty?
+  end
+end