Fix cutting of url params with the same name upon filtering

framework/assets/yii.gridView.js

@@ -96,10 +96,18 @@
 
             $.each(yii.getQueryParams(settings.filterUrl), function (name, value) {
                 if (namesInFilter.indexOf(name) === -1 && namesInFilter.indexOf(name.replace(/\[\]$/, '')) === -1) {
+                    if (!$.isArray(value)) {
+                        value = [value];
+                    }
                     if (!(name in data)) {
-                        data[name] = [];
+                        data[name] = value;
+                    } else {
+                        $.each(value, function (i, val) {
+                            if ($.inArray(val, data[name])) {
+                                data[name].push(val);
+                            }
+                        });
                     }
-                    data[name].push(value);
                 }
             });
 

framework/assets/yii.js

@@ -276,12 +276,28 @@ yii = (function ($) {
             if (pos < 0) {
                 return {};
             }
-            var qs = url.substring(pos + 1).split('&');
+
-            for (var i = 0, result = {}; i < qs.length; i++) {
+            var pairs = url.substring(pos + 1).split('&'),
-                qs[i] = qs[i].split('=');
+                params = {},
-                result[decodeURIComponent(qs[i][0])] = decodeURIComponent(qs[i][1]);
+                pair,
+                i;
+
+            for (i = 0; i < pairs.length; i++) {
+                pair = pairs[i].split('=');
+                var name = decodeURIComponent(pair[0]);
+                var value = decodeURIComponent(pair[1]);
+                if (name.length) {
+                    if (params[name] !== undefined) {
+                        if (!$.isArray(params[name])) {
+                            params[name] = [params[name]];
+                        }
+                        params[name].push(value || '');
+                    } else {
+                        params[name] = value || '';
+                    }
+                }
             }
-            return result;
+            return params;
         },
 
         initModule: function (module) {