From 7c6a58cd300deb3a7a114d6dfb04937d4c564949 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Garc=C3=ADa=20Aubert?= <dgaubert@cartodb.com>
Date: Thu, 1 Sep 2016 16:42:06 +0200
Subject: [PATCH] Made explicit to recreate named-map-provider

---
 lib/cartodb/controllers/named_maps.js | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/lib/cartodb/controllers/named_maps.js b/lib/cartodb/controllers/named_maps.js
index b25bf1ba..f4e5ee90 100644
--- a/lib/cartodb/controllers/named_maps.js
+++ b/lib/cartodb/controllers/named_maps.js
@@ -142,7 +142,7 @@ NamedMapsController.prototype.staticMap = function(req, res) {
 
             namedMapProvider = _namedMapProvider;
 
-            self.prepareLayerFilterFromPreviewLayers(req.params, namedMapProvider, this);
+            self.prepareLayerFilterFromPreviewLayers(cdbUser, req, namedMapProvider, this);
         },
         function prepareImageOptions(err) {
             assert.ifError(err);
@@ -190,7 +190,8 @@ NamedMapsController.prototype.staticMap = function(req, res) {
     );
 };
 
-NamedMapsController.prototype.prepareLayerFilterFromPreviewLayers = function (params, namedMapProvider, callback) {
+NamedMapsController.prototype.prepareLayerFilterFromPreviewLayers = function (cdbUser, req, namedMapProvider, callback) {
+    var self = this;
     namedMapProvider.getTemplate(function (err, template) {
         if (err) {
             return callback(err);
@@ -209,12 +210,22 @@ NamedMapsController.prototype.prepareLayerFilterFromPreviewLayers = function (pa
             }
         });
 
-        if (layerVisibilityFilter.length) {
-            // overwrite 'all' default filter
-            params.layer = layerVisibilityFilter.join(',');
+        if (!layerVisibilityFilter.length) {
+            return callback();
         }
 
-        callback();
+        // overwrites 'all' default filter
+        req.params.layer = layerVisibilityFilter.join(',');
+
+        // recreates the provider
+        self.namedMapProviderCache.get(
+            cdbUser,
+            req.params.template_id,
+            req.query.config,
+            req.query.auth_token,
+            req.params,
+            callback
+        );
     });
 };