rails 2 snippets

How to use jQuery with Rails 2.0 - aka How to fix "ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken)"

Tagged authenticity, rails, rails 2, token, jquery, javascript, ajax  Languages ruby

This is a slight variation of Henrik Nyh's code, which fixes an issue with IE6 that makes all Ajax requests use POST in IE6.

In application.html.erb, or whatever layout file you're using, put:

<%= javascript_tag "window.AUTH_TOKEN = '#{form_authenticity_token}';" %>

In application.js, or whatever JavaScript file you're using, put:

$(document).ajaxSend(function(event, request, settings) {
  if (typeof(window.AUTH_TOKEN) == "undefined") return;
  // IE6 fix for http://dev.jquery.com/ticket/3155
  if (settings.type == 'GET' || settings.type == 'get') return;

  settings.data = settings.data || "";
  settings.data += (settings.data ? "&" : "") + "authenticity_token=" + encodeURIComponent(window.AUTH_TOKEN);
});

That's all...

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