rails button_to 类更改

Question

我正在使用 Rails 4。我尝试让我的 button_to 形成一个类：

          <%= button_to "unsubscribe",
                 :form_class => 'unsubscribe', 
                 :controller => :places, 
                 :action => 'delid',
                 :plid => subscription.place.id,
                 :method => :post %>

但是表单类是“button_to”

控制器如下所示：

def delid
  @lolka = Subscription.where(user_id: current_user.id, place_id: params[:plid]).destroy_all
  @subscribed = Place.find_by_id(params[:plid])
  @subscribed.update_attributes(:subscribers_count => Subscription.where(place_id: params[:plid]).count)
  @subscribed.update_attributes(:subscribers_male => Subscription.where(place_id: params[:plid], user_gender: 'male').count)
  @subscribed.update_attributes(:subscribers_female => Subscription.where(place_id: params[:plid], user_gender: 'female').count)
  @places = Place.all
  redirect_to :back
end

也许我做错了什么？最好使用link_to？但如何？提前致谢。

Answer 1

阅读documentation； :form_class（以及method）进入秒 html_options hash：

<%= button_to "unsubscribe", {
             controller: :places, 
             action: 'delid',
             plid: subscription.place.id,
             }, {
             method: :post
             form_class: 'unsubscribe'
             } %>