Ruby on Rails – 将CSS添加到text_field

我还是铁杆新手,所以任何帮助都会非常感激.

这是我的表格：

<% @page_title = "Contact" %>
    <hr>
    <div class="col-lg-12">
                <h1 class="page-header">
                    BK Legal Courier Corp <br />Call BK @ <span style="color:#47B224">613-286-8265</span>
                </h1>
            </div>

<hr>
<div class="container">
  <h2>Contact Us</h2>
   <%= form_for :fc,:url => {:action => 'create'} do |f| %>
    <div class="form-group">
      <%= f.label :first_name %>
      <%= f.text_field (:first_name,:class => 'form-control')%>
    </div>
    <div class="form-group">
      <%= f.label :last_name %>
     <%= f.text_field (:last_name,:class => 'form-control') %>
    </div>
     <div class="form-group">
      <%= f.label :email %>
      <%= f.text_field (:email,:class => 'form-control') %>
    </div>
     <div class="form-group">
  <%= f.label :comment %>
 <%= f.text_area (:comment,:class => 'form-control') %>
</div>
<div class="form-group">
  <%= f.label :referral %>
        <%= f.select (:referral,[['Friends',1],['News',2],['Online',3],['Other',4]],:class => 'form-control')%>
</div>
 <%= submit_tag ("Submit") %>
  </form>
</div>

<% end %>
</body>

</html>

问题是我的表单只会在没有：class =>的情况下提交.其中的“形式控制”.我必须在每个表单字段变量周围加上括号.

这是我的routes.rb文件：

Rails.application.routes.draw do
  root "home#index"


  match ':controller(/:action(/:id))',:via => [:get,:post]

    end

这是我的控制器：

class HomeController < ApplicationController
     def home
        render("home/index")
     end
      def new
@fc = FeedbackCustomer.new
  end
  def create
     # Instantiate a new object using form parameters
    @fc = FeedbackCustomer.new(feedbackcustomer_params)
if @fc.save
    redirect_to(:action => "home")
end
  end

  def application

  end

private

def feedbackcustomer_params
params.require(:fc).permit(:first_name,:last_name,:email,:comment,:referral)
    end
end

任何帮助将非常感激.谢谢！