ruby-on-rails – 插入一个css类以在Rails date_select上选择

我使用date_select方法生成3个html选择,日,月和年.
但我需要每个选择都有一类CSS.

我没有在文档中找到如何将参数传递给帮助器,我尝试了几种方法,没有.

Rails查看：

<%= f.date_select :birthday,:order => [:day,:month,:year],:start_year => 1910,:end_year => 2012,:html => {:class => ['day','month','year']} %>

HTML输出：

<select id="poll_user_birthday_3i" name="poll_user[birthday(3i)]">
<select id="poll_user_birthday_2i" name="poll_user[birthday(2i)]">
<select id="poll_user_birthday_1i" name="poll_user[birthday(1i)]">

像我这样的HTML输出：

<select id="poll_user_birthday_3i" name="poll_user[birthday(3i)]" class="day">
<select id="poll_user_birthday_2i" name="poll_user[birthday(2i)]" class="month">
<select id="poll_user_birthday_1i" name="poll_user[birthday(1i)]" class="year">

谢谢！

解决方法

他们解决这个问题的方式是用css

视图

<span class="datetime"> <%= f.date_select :birthdate,:end_year => 2012 %></span>

CSS

.datetime select:nth-child(1){
  width: 130px;
  text-indent: 15px; 
}

.datetime select:nth-child(2) {
  width: 200px;
  text-indent: 5px;
}

.datetime select:nth-child(3) {
  width: 110px;
  text-indent: 15px;
}