NXDRIVE-2912: Display Drive notification for document review --20/06 …

…-03 02

nxdrive/gui/api.py

@@ -564,20 +564,20 @@ def get_disk_space_info_to_width(
         - Size of space used by other applications converted to percentage of the width.
         - Global size of synchronized files converted to percentage of the width.
         """
-        engine = self._get_engine(uid)
-
-        synced = engine.dao.get_global_size() if engine else 0
-        used, free = disk_space(path)
-        used_without_sync = used - synced
-        total = used + free
-        result = self._balance_percents(
-            {
-                "free": free * width / total,
-                "used_without_sync": used_without_sync * width / total,
-                "synced": synced * width / total,
-            }
-        )
-        return [result["free"], result["used_without_sync"], result["synced"]]
+        if engine := self._get_engine(uid):
+
+            synced = engine.dao.get_global_size() if engine else 0
+            used, free = disk_space(path)
+            used_without_sync = used - synced
+            total = used + free
+            result = self._balance_percents(
+                {
+                    "free": free * width / total,
+                    "used_without_sync": used_without_sync * width / total,
+                    "synced": synced * width / total,
+                }
+            )
+            return [result["free"], result["used_without_sync"], result["synced"]]
 
     def _balance_percents(self, result: Dict[str, float], /) -> Dict[str, float]:
         """Return an altered version of the dict in which no value is under a minimum threshold."""