问题
I'm trying to create a form with some custom data attributes on the inputs:
<input type="text" data-family="Dinosaurs">
This seemed like a nice clean way to have easy front-end access (haha!) with jquery:
$("[data-family='Dinosaurs']").doSomething()
The problem is I can't get Rails (3.0.3) to render the attribute.
<%= f.text_field :question, :id=>"poll_question", :class=>"BigInput", :style=>"width:98%;", :attributes=>"data-submit_clear='1'" %>
I've tried many permutations to no avail and can't find an example of how to do this. Do I need to modify the text_field helper to support any custom attributes?
回答1:
Oops. It's just
<%= f.text_field :question, :id=>"poll_question", :class=>"BigInput", :style=>"width:98%;", 'data-submit_clear'=>'1' %>
回答2:
Rails >3.1 has a handy shortcut for data-attributes like this which most HTML-generating helpers support:
<%= f.text_field :question, :data => { :submit_clear => '1' } %>
It can make things more readable when you have a couple of data attributes, e.g.:
<%= f.text_field :question, :data => { :submit_clear => '1', :more_info => 'Ok', :also => 'this' } %>
来源：https://stackoverflow.com/questions/5200260/custom-html-attribute-requires-a-custom-helper