相关疑难解决方法(0)

所以我有这个辅助方法，对吗？

def table_form_field(name_or_options = nil, *args, &block)
  # ...
  render :partial => "snippets/table_form_field", :locals => options
end

这很好，但有时我想将它与表单生成器一起使用，为此我必须这样调用它：

table_form_field(:foo, :form_builder => f) do |name|
  f.text_field name
end

必须手动指定 :form_builder 很烦人。所以我的目标是扩展ActionView::Helpers::FormBuilder并添加一个新方法，如下所示：

class ActionView::Helpers::FormBuilder
  def table_form_field(name_or_options, options, &block)
    if name_or_options.is_a?(Hash)
      name_or_options[:form_builder] = self
    else
      options[:form_builder] = self
    end

    # But... how can I call the helper?
    # Hmm, I'll try this:

    klass = Class.new do
      include ApplicationHelper
    end

    klass.new.send(:table_form_field, name_or_options, options, &block)

    # Thank you, Mario, but your princess is …