From 5565a8cca61e95685b6b57f01b21762c1de35d98 Mon Sep 17 00:00:00 2001
From: Bart Vandendriessche <bart.vandendriessche@gmail.com>
Date: Sun, 12 Feb 2012 11:44:30 +0100
Subject: [PATCH] Allow query parameters to contain an array such as
 ?q=value1&q=value2

If the parameter key occurs only once, behaviour is unaltered,
otherwise, the param object's value for the parameter key is turned
into an array and subsequent values are pushed onto it.
---
 src/backbone_query_parser.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/backbone_query_parser.js b/src/backbone_query_parser.js
index 752e95f..c9c0bac 100644
--- a/src/backbone_query_parser.js
+++ b/src/backbone_query_parser.js
@@ -43,7 +43,13 @@ Backbone.Router.prototype._extractParameters = function (route, path) {
     path = path.substr(0, query);
     _.each(params, function(param) {
       param = param.split("=");
-      queryParams[param[0]] = param[1];
+      if (_.isUndefined(queryParams[param[0]])) {
+        queryParams[param[0]] = param[1];
+      } else if (_.isArray(queryParams[param[0]])) {
+        queryParams[param[0]].push(param[1]);
+      } else {
+        queryParams[param[0]] = [queryParams[param[0]], param[1]];
+      }
     });
   }