如何在text_field Ruby中显示两个值？

Question

我需要Rails中的textfield：

<%= f.text_field :first_name, autofocus: true, placeholder: :first_name , :class => 'form-control', "disabled" => "disabled" %>

我想在一个文本字段中显示两个变量：

:first_name :second_name

怎么做？

Answer 1

您应该在模型中建立一个连接first_name和second_name的方法：

def full_name 
  "#{self.first_name}, #{self.second_name}"
end

然后在你的视图中调用它：

<%= f.text_field :full_name, autofocus: true, placeholder: :first_name , :class => 'form-control', "disabled" => "disabled" %>

Answer 2

<%= f.text_field :first_name, value: "#{f.object.first_name} #{f.object.second_name}", autofocus: true, placeholder: :first_name , :class => 'form-control', "disabled" => "disabled" %>