check metadata is complete

Author: odeimaiz

services/static-webserver/client/source/class/osparc/workbench/ServiceCatalog.js

@@ -210,16 +210,19 @@ qx.Class.define("osparc.workbench.ServiceCatalog", {
       osparc.filter.UIFilterController.getInstance().resetGroup("serviceCatalog");
       const filteredServices = [];
       this.__servicesLatest.forEach(service => {
-        if (this.__contextLeftNodeId === null && this.__contextRightNodeId === null) {
-          filteredServices.push(service);
-        } else if (service.inputs && service.outputs) {
-          // filter out services that can't be connected
-          const needsInputs = this.__contextLeftNodeId !== null;
-          const needsOutputs = this.__contextRightNodeId !== null;
-          let connectable = needsInputs ? Boolean(Object.keys(service.inputs).length) : true;
-          connectable = connectable && (needsOutputs ? Boolean(Object.keys(service.outputs).length) : true);
-          if (connectable) {
+        // first check metadata is complete
+        if (service.inputs && service.outputs) {
+          if (this.__contextLeftNodeId === null && this.__contextRightNodeId === null) {
             filteredServices.push(service);
+          } else {
+            // filter out services that can't be connected
+            const needsInputs = this.__contextLeftNodeId !== null;
+            const needsOutputs = this.__contextRightNodeId !== null;
+            let connectable = needsInputs ? Boolean(Object.keys(service.inputs).length) : true;
+            connectable = connectable && (needsOutputs ? Boolean(Object.keys(service.outputs).length) : true);
+            if (connectable) {
+              filteredServices.push(service);
+            }
           }
         }
       });