issue/theriverman#34: Storage.stat() now raises AttributeError when c…

…lient.stat_object fails

This resolves compatibility with delete_file() in collectstatic. See more at https://github.com/django/django/blob/2f73e5406d54cb8945e187eff302a3a3373350be/django/contrib/staticfiles/management/commands/collectstatic.py#L252

django_minio_backend/models.py

@@ -194,10 +194,8 @@ def stat(self, name: str) -> Union[minio.datatypes.Object, bool]:
         try:
             obj = self.client.stat_object(self.bucket, object_name=object_name)
             return obj
-        except (minio.error.S3Error, minio.error.ServerError):
-            return False
-        except urllib3.exceptions.MaxRetryError:
-            return False
+        except (minio.error.S3Error, minio.error.ServerError, urllib3.exceptions.MaxRetryError):
+            raise AttributeError(f'Could not stat object ({name}) in bucket ({self.bucket})')
 
     def delete(self, name: str):
         """