Visual Console Refactor: error fixes

Former-commit-id: 5cfe645c4b02e84b9b2e9056747419bf144b0594

pandora_console/include/rest-api/models/VisualConsole/Items/ColorCloud.php

@@ -225,11 +225,17 @@ final class ColorCloud extends Item
         if (empty($dynamicData['colorRanges']) === false) {
             // Connect to node.
             $nodeConnected = false;
-            if (is_metaconsole() === true && $metaconsoleId !== null) {
+            if (\is_metaconsole() === true && $metaconsoleId !== null) {
-                $nodeConnected = metaconsole_connect(
+                $nodeConnected = \metaconsole_connect(
                     null,
                     $metaconsoleId
                 ) === NOERR;
+
+                if ($nodeConnected === false) {
+                    throw new \InvalidArgumentException(
+                        'error connecting to the node'
+                    );
+                }
             }
 
             // Fetch module value.
@@ -237,12 +243,12 @@ final class ColorCloud extends Item
             if ($metaconsoleId === null
                 || ($metaconsoleId !== null && $nodeConnected)
             ) {
-                $value = modules_get_last_value($moduleId);
+                $value = \modules_get_last_value($moduleId);
             }
 
             // Restore connection.
             if ($nodeConnected === true) {
-                metaconsole_restore_db();
+                \metaconsole_restore_db();
             }
 
             // Value found.

pandora_console/include/rest-api/models/VisualConsole/Items/SimpleValue.php

@@ -165,6 +165,7 @@ final class SimpleValue extends Item
             throw new \InvalidArgumentException('missing module Id');
         }
 
+        // TODO: Connect to a metaconsole node?
         // Get the formatted value.
         $value = \visual_map_get_simple_value(
             $data['type'],