举个例子,在表单中有这样的内容:
<dl>
<dt>
<%= f.label :subject %>
</dt>
<dd>
<%= f.text_field :subject %>
</dd>
</dl>
在浏览器中显示成:
■Subject
(※注:■由CSS生成)
如果对表单进行验证,验证后再显示的格式就乱了,变成这样:
■
Subject
为什么会错位呢?
You should override
ActionView::Base.field_error_proc
. It's currently defined as this withinActionView::Base
:You can override it by putting this in your application's class inside
config/application.rb
:Restart rails server for this change to take effect.
(全文抄袭自 http://stackoverflow.com/questions/5267998/rails-3-field-with-errors-wrapper-changes-the-page-appearance-how-to-avoid-t)
当然,更推荐改成这样