From f9df30f70bbe49f5d757c55c714f5fd1f6c2fd19 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Tue, 20 Sep 2016 16:09:21 +0200
Subject: [PATCH] Append turbo-carto metadata per layer

---
 lib/cartodb/controllers/map.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/cartodb/controllers/map.js b/lib/cartodb/controllers/map.js
index 9b1b3607..552eeaca 100644
--- a/lib/cartodb/controllers/map.js
+++ b/lib/cartodb/controllers/map.js
@@ -171,6 +171,7 @@ MapController.prototype.create = function(req, res, prepareConfigFn) {
                 var analysesResults = context.analysesResults || [];
                 addDataviewsAndWidgetsUrls(req.context.user, layergroup, mapConfig.obj());
                 addAnalysesMetadata(req.context.user, layergroup, analysesResults, true);
+                addContextMetadata(layergroup, mapConfig.obj(), context);
                 res.set('X-Layergroup-Id', layergroup.layergroupid);
                 self.send(req, res, layergroup, 200);
             }
@@ -178,6 +179,15 @@ MapController.prototype.create = function(req, res, prepareConfigFn) {
     );
 };
 
+function addContextMetadata(layergroup, mapConfig, context) {
+    if (layergroup.metadata && Array.isArray(layergroup.metadata.layers) && Array.isArray(mapConfig.layers)) {
+        layergroup.metadata.layers = layergroup.metadata.layers.map(function(layer, layerIndex) {
+            layer.meta.cartocss_meta = context.turboCarto.layers[layerIndex];
+            return layer;
+        });
+    }
+}
+
 MapController.prototype.instantiateTemplate = function(req, res, prepareParamsFn) {
     var self = this;
 
@@ -229,8 +239,10 @@ MapController.prototype.instantiateTemplate = function(req, res, prepareParamsFn
                 var templateHash = self.templateMaps.fingerPrint(mapConfigProvider.template).substring(0, 8);
                 layergroup.layergroupid = cdbuser + '@' + templateHash + '@' + layergroup.layergroupid;
 
-                addDataviewsAndWidgetsUrls(cdbuser, layergroup, mapConfig.obj());
+                var _mapConfig = mapConfig.obj();
+                addDataviewsAndWidgetsUrls(cdbuser, layergroup, _mapConfig);
                 addAnalysesMetadata(cdbuser, layergroup, mapConfigProvider.analysesResults);
+                addContextMetadata(layergroup, _mapConfig, mapConfigProvider.context);
 
                 res.set('X-Layergroup-Id', layergroup.layergroupid);
                 self.surrogateKeysCache.tag(res, new NamedMapsCacheEntry(cdbuser, mapConfigProvider.getTemplateName()));