## Output
<input type="text" size="30" name="#<MonitoringTemplate:0x2aaaaf2832a8>[name]" id="__MonitoringTemplate:0x2aaaaf2832a8_name" class="text"/>

## View
<%= field_for :monitoring_template, :name %>

## Controller
def new
  @monitoring_template = MonitoringTemplate.new
end

## Helpers
  # Displays a label, field, and error message (if available) for the specified object/method pair.
  #
  # *Valid Options*
  #   :label => "The label to use" # Defaults to humanized method name
  #   :type => :text_field # A method which accepts object_name, method, and field_options. See
  #                        # ActionView::Helpers::FormHelper, ActionView::Helpers::FormOptionsHelper etc.
  #   :float => false      # If true, the field will be wrapped in a div with the floating_input class.
  #
  # The field_options hash will be passed to the FormHelper method intact.
  #
  # If a block is provided to field_proc it will be used to build the field.
  def field_for(object_name, method, options = {}, field_options = {}, &field_proc)
    options[:label] ||= method.to_s.titlecase
    options[:type] ||= :text_field
    options[:float] ||= false

    label = content_tag("label", options[:label], :for => "#{object_name}_#{method}")

    obj = get_object_from_string(object_name)
    unless block_given?
      # Call the requested method
      field = self.send(options[:type], obj, method, field_options)
    else
      field = field_proc.call(obj)
    end

    errors = error_message_on(object_name, method, options[:label] + " ")

    if options[:type] == :check_box
      fieldset = content_tag("div", field + " " + label + errors, :class => "checkbox_group")
    else
      fieldset = label + field + errors
    end

    fieldset = content_tag("div", fieldset, :class => "floating_input") if options[:float]

    return fieldset
  end

  def get_object_from_string(object_name)
    if object_name.is_a?(String) || object_name.is_a?(Symbol)
      obj = instance_variable_get("@#{object_name}")

      raise ArgumentError.new("Invalid object name #{object_name} provided to get_object_from_string") if obj.nil?
    else
      obj = object_name
    end

    return obj
  end