simple_form的collection_radio_button和自定义标签类

Question

我正在尝试使用FontAwesome制作带有无线电收集的星级评级表,为此我实际上需要更改simple_form生成的collection_radio_button输入的标签类,但找不到任何明显的解决方案.

到目前为止我使用:

form_for @user do |f|
  f.collection_radio_buttons :rating, [[1, 'Bad'] ,[2, 'Ok'], [3, 'Great']],
                             :first, :last, { item_wrapper_tag: false }
end

哪个产生:

<input id="review_rating_1" name="review[rating]" type="radio" value="1" />
<label class="collection_radio_buttons" for="review_rating_1">Bad</label>
<input id="review_rating_2" name="review[rating]" type="radio" value="2" />
<label class="collection_radio_buttons" for="review_rating_2">Ok</label>
<input id="review_rating_3" name="user[options]" type="radio" value="3" />
<label class="collection_radio_buttons" for="review_rating_3">Great</label>

但我希望标签有一个额外的类,如:

<input id="review_rating_3" name="user[options]" type="radio" value="3" />
<label class="collection_radio_buttons icon-star" for="review_rating_3">Great</label>

更新:此类在静态定义:https://github.com/plataformatec/simple_form/blob/master/lib/simple_form/tags.rb#L43

Answer 1

这可以通过使用块来实现:

form_for @user do |f|
  f.collection_radio_buttons :rating, [[1, 'Bad'] ,[2, 'Ok'], [3, 'Great']],
                             :first, :last, { item_wrapper_tag: false } do |b|
    b.radio_button + b.label(:class => "collection_radio_buttons icon-star")
  end
end

这个文档可以展示一些其他的例子:http://rubydoc.info/github/plataformatec/simple_form/SimpleForm/FormBuilder : collection_radio_buttons