Save filter params to sessionStorage for orders list

- Use sessionStorage to save the filters params each time a filter is modified

app/assets/javascripts/admin/orders/controllers/orders_controller.js.coffee

@@ -1,4 +1,4 @@
-angular.module("admin.orders").controller "ordersCtrl", ($scope, $timeout, RequestMonitor, Orders, SortOptions, $window, $filter) ->
+angular.module("admin.orders").controller "ordersCtrl", ($scope, $timeout, RequestMonitor, Orders, SortOptions, $window, $filter, $location, QueryPersistence) ->
   $scope.RequestMonitor = RequestMonitor
   $scope.pagination = Orders.pagination
   $scope.orders = Orders.all
@@ -15,11 +15,16 @@ angular.module("admin.orders").controller "ordersCtrl", ($scope, $timeout, Reque
   $scope.poll = 0
   $scope.rowStatus = {}
 
+  QueryPersistence.storageKey = 'ordersFilters'
+  QueryPersistence.storableFilters = ["q", "sorting", "shipping_method_id", "page", "per_page"]
+
   $scope.initialise = ->
-    $scope.per_page = 15
-    $scope.q = {
-      completed_at_not_null: true
-    }
+    unless QueryPersistence.restoreFilters($scope)
+      $scope.per_page = 15
+      $scope.q = {
+        completed_at_not_null: true
+      }
+
     $scope.fetchResults()
 
   $scope.fetchResults = (page=1) ->
@@ -44,10 +49,12 @@ angular.module("admin.orders").controller "ordersCtrl", ($scope, $timeout, Reque
       per_page: $scope.per_page,
       page: page
     }
+    QueryPersistence.setStoredFilters($scope)
     RequestMonitor.load(Orders.index(params).$promise)
 
   $scope.appendStringIfNotEmpty = (baseString, stringToAppend) ->
     return baseString unless baseString
+    return baseString if baseString.endsWith(stringToAppend)
 
     baseString + stringToAppend
 

app/assets/javascripts/admin/orders/orders.js.coffee

@@ -1 +1 @@
-angular.module("admin.orders", ['admin.indexUtils', 'ngResource', 'mm.foundation'])
+angular.module("admin.orders", ['admin.indexUtils', 'ngResource', 'mm.foundation', "OFNShared"])