ruby-on-rails - rails : how to iterate over subset of model's fields to create input field?

Question

我有一个模型如下:

class User < ActiveRecord::Base
  attr_accessible :name, :email, :twitter, :dribbble, :forrst,
                  :github, :stackoverflow, :linkedin

  # validations, functions, etc.
end

在我看来，我想遍历社交帐户(twitter、dribbble、forrst、github、stackoverflow 和 linkedin)来为它们创建文本字段，如下所示:

<%= form_for(@user) do |f| %>
  <% %w[twitter dribbble forrst github stackoverflow linkedin].each do |account| %>
    <%= account %> username: <%= f.text_field :account %>
  <% end %>
<% end %>

如何给 f.text_field 正确的 :account？

谢谢

Answer 1

要保持干燥，请执行以下操作:

<%= form_for(@user) do |f| %>
  <% User.accessible_attributes.each do |account| %>
    <%= account %> username: <%= f.text_field account.to_sym %>
  <% end %>
<% end %>