Can button_to generate <button> tag instead of <input type="submit" />?

Rather than

<input type="submit" />

I want to output

<button>

using the button_to method (开发者_JAVA技巧rails 3.0.0)

Is this possible?

As of the latest version of Rails (4.0.2, not sure about previous versions) passing a block to button_to invokes branch logic in the helper that creates a button element instead of an input.

For example, if you wanted to make a 'delete' button element in haml, bootstrap & fontawesome (my use case):

= button_to(foo_path(@foo),
  class: 'btn btn-sm', method: :delete, remote: true) do
  <i class="fa fa-times"></i>

If you want them to just always be button elements no matter what, you could always have your button content inside a block instead of the first argument. Not sure what the trade-off is there.

You could override the button_to helper in ApplicationHelper to render a button tag instead. Look at the code that button_to already has and modify it to suit your purposes.

I just found that changing button_to to using a block generates button tag instead of input:

so:

<%= button_to account_path(@account), data: {confirm: 'Are you sure?'}, method: :delete, class: 'btn btn-default btn-danger' do %>
  Inactivate
<% end %>

Generates:

<form method="post" class="button_to" action="/accounts/30">
  <div>
    <input type="hidden" value="delete" name="_method">
      <button type="submit" data-confirm="Are you sure?" class="btn btn-default btn-danger">
          Inactivate
      </button>
    <input type="hidden" value="" name="authenticity_token">
  </div>
 </form>

from what i can see Rails already has a helper to output tags; it's called button_tag (instead of button_to).

so, you could just use the following in your views, i see no need to override button_to:

<%= button_tag "Button Text", :class => "btn", :type => "submit" %>

no need to override. also, it's recommended to always supply the :type parameter since is rendered different in different browsers.

I generally just stick this in my application_helper.rb file:

  def button_tag(text, options={})
    content_tag(:button, {:type => "submit"}.merge(options)) { text }
  end

You can then call it from a view like so:

button_tag "Save", :class => 'accept'

In Rails 7, the button_to view helper will render a <button> element, regardless of whether or not the content is passed as the first argument or as a block.