From 3036adece9ab86c879b80cbf5c59cc3c4972c08b Mon Sep 17 00:00:00 2001
From: Alvaro Vega <alvaro.vegagarcia@telefonica.com>
Date: Tue, 6 Aug 2024 11:35:52 +0200
Subject: [PATCH] fix metadata obj into jexl context

---
 lib/services/ngsi/entities-NGSI-v2.js |  4 +++-
 test/functional/testCases.js          | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/lib/services/ngsi/entities-NGSI-v2.js b/lib/services/ngsi/entities-NGSI-v2.js
index 22217bf9e..81bf1a2a4 100644
--- a/lib/services/ngsi/entities-NGSI-v2.js
+++ b/lib/services/ngsi/entities-NGSI-v2.js
@@ -277,7 +277,9 @@ function sendUpdateValueNgsi2(entityName, originMeasures, originTypeInformation,
     function reduceMetadataAttrToPlainObject(attrs, initObj = {}) {
         if (attrs !== undefined && Array.isArray(attrs)) {
             return attrs.reduce((result, item) => {
-                result['metadata'] = {};
+                if (result['metadata'] === undefined) {
+                    result['metadata'] = {};
+                }
                 if (item.metadata !== undefined) {
                     result['metadata'][item.name] = {};
                     for (var meta in item.metadata) {
diff --git a/test/functional/testCases.js b/test/functional/testCases.js
index 44431d996..3c360197a 100644
--- a/test/functional/testCases.js
+++ b/test/functional/testCases.js
@@ -1843,6 +1843,17 @@ const testCases = [
                         commands: [],
                         lazy: [],
                         static_attributes: [
+                            {
+                                name: 'st_attr1',
+                                type: 'Number',
+                                value: 1.5,
+                                metadata: {
+                                    coef1: {
+                                        value: 0.8,
+                                        type: 'Float'
+                                    }
+                                }
+                            },
                             {
                                 name: 'st_attr',
                                 type: 'Number',
@@ -1853,6 +1864,17 @@ const testCases = [
                                         type: 'Float'
                                     }
                                 }
+                            },
+                            {
+                                name: 'st_attr2',
+                                type: 'Number',
+                                value: 1.5,
+                                metadata: {
+                                    coef2: {
+                                        value: 0.8,
+                                        type: 'Float'
+                                    }
+                                }
                             }
                         ],
                         attributes: [