Changing the accept-charset attribute in rails for

问题:

The rails form_tag defaults to UTF-8. I would like to change the form to accept ISO-8859-1. From what I've read it seems like the following should work:

<%= form_tag subscribe_checkout_path, :id => 'checkoutForm' , :'accept-charset' => 'ISO-8859-1' do %>
<% end %>

It is not changing the accept-charset. Is this a problem with rails or am I doing something wrong?

回答1:

This is bug in Rails. It has hardcoded UTF-8 value for it attribute.

So, I recommend to post issue or PR for fix this problem to Rails. Seems like it will be trivial fix.

回答2:

You can monkey-patch the html_options_for_form by modifying the app/helpers/application_helper.rb like this:

module ApplicationHelper
  private def html_options_for_form(url_for_options, options)
    html_options = super(url_for_options, options)
    html_options["accept-charset"] = "ISO-8859-1"
    html_options
  end

  def utf8_enforcer_tag
    "".html_safe
  end
end

I also override the utf8_enforcer_tag that returns <input name="utf8" type="hidden" value="&#x2713;" /> originally.