From f8e96a2e25aeba70d4452aad572a5286a7d3d10d Mon Sep 17 00:00:00 2001
From: Cannon Lock <clock@wisc.edu>
Date: Fri, 19 Jan 2024 15:50:47 -0600
Subject: [PATCH] Handle null values in query parser

---
 api/query_parser.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/api/query_parser.py b/api/query_parser.py
index 9d8450f..4b04ac5 100644
--- a/api/query_parser.py
+++ b/api/query_parser.py
@@ -33,6 +33,9 @@ def get_filter_query_params(request: Request) -> list[tuple[str, str]]:
 
 def cast_to_column_type(column: Column, value):
     try:
+        if value == "null":
+            return None
+
         return column.type.python_type(value)
     except Exception:
         raise ParserException(