Makes it easy to override the way we get the href

src/rails.js

@@ -99,6 +99,11 @@
       return $.ajax(options);
     },
 
+    // Default way to get an element's href. May be overridden at $.rails.href.
+    href: function(element) {
+      return element.attr('href');
+    },
+
     // Submits "remote" forms and links with ajax
     handleRemote: function(element) {
       var method, url, data,
@@ -125,7 +130,7 @@
           if (element.data('params')) data = data + "&" + element.data('params');
         } else {
           method = element.data('method');
-          url = element.attr('href');
+          url = rails.href(element);
           data = element.data('params') || null;
         }
 
@@ -160,7 +165,7 @@
     // Handles "data-method" on links such as:
     // <a href="/users/5" data-method="delete" rel="nofollow" data-confirm="Are you sure?">Delete</a>
     handleMethod: function(link) {
-      var href = link.attr('href'),
+      var href = rails.href(link),
         method = link.data('method'),
         target = link.attr('target'),
         csrf_token = $('meta[name=csrf-token]').attr('content'),

test/public/test/override.js

@@ -0,0 +1,37 @@
+(function(){
+
+module('override', {
+  setup: function() {
+    window.realHref = $.rails.href;
+    $('#qunit-fixture').append($('<a />', {
+      href: '/real/href', 'data-method': 'delete', 'data-href': '/data/href'
+    }));
+  },
+  teardown: function() {
+    $.rails.href = window.realHref;
+  }
+});
+
+asyncTest("the getter for an element's href is publicly accessible", 1, function() {
+  ok($.rails.href);
+  start();
+});
+
+asyncTest("the getter for an element's href is overridable", 1, function() {
+  $.rails.href = function(element) { return element.data('href'); }
+  $.rails.ajax = function(options) {
+    equal('/data/href', options.url);
+  }
+  $.rails.handleRemote($('#qunit-fixture').find('a'));
+  start();
+});
+
+asyncTest("the getter for an element's href works normally if not overridden", 1, function() {
+  $.rails.ajax = function(options) {
+    equal('/real/href', options.url);
+  }
+  $.rails.handleRemote($('#qunit-fixture').find('a'));
+  start();
+});
+
+})();

test/views/index.erb

@@ -1,6 +1,6 @@
 <% @title = "jquery-ujs test" %>
 
-<%= test 'data-confirm', 'data-remote', 'data-disable', 'call-remote', 'call-remote-callbacks', 'data-method' %>
+<%= test 'data-confirm', 'data-remote', 'data-disable', 'call-remote', 'call-remote-callbacks', 'data-method', 'override' %>
 
 <h1 id="qunit-header"><%= @title %></h1>
 <div id="jquery-cdn">