From 9bb85dfe46d31f6aae8c0a131a7d0c72dd1b912e Mon Sep 17 00:00:00 2001
From: David <51410049+davidhsoftware@users.noreply.github.com>
Date: Mon, 15 Aug 2022 13:20:38 +1000
Subject: [PATCH] Prevent additional checks from failing if nullable value is
 null

---
 .../lib/src/runtime/query_builder/schema/column_impl.dart  | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drift/lib/src/runtime/query_builder/schema/column_impl.dart b/drift/lib/src/runtime/query_builder/schema/column_impl.dart
index 18984cf9..8569343d 100644
--- a/drift/lib/src/runtime/query_builder/schema/column_impl.dart
+++ b/drift/lib/src/runtime/query_builder/schema/column_impl.dart
@@ -190,10 +190,11 @@ class GeneratedColumn<T extends Object> extends Column<T> {
     final nullOk = $nullable;
     if (!nullOk && value == null) {
       return _invalidNull;
+    } else if (nullOk && value == null) {
+      return const VerificationResult.success();
     } else {
-      // ignore: null_check_on_nullable_type_parameter
-      return additionalChecks?.call(value!, meta) ??
-          const VerificationResult.success();
+      // ignore: null_check_on_nullable_type_parameter 
+      return additionalChecks?.call(value!, meta) ?? const VerificationResult.success();
     }
   }