From 55688c3d8e3e4a95bb8c3f4f3ff0d02e024fa36a Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Thu, 26 Feb 2026 10:25:05 +0300
Subject: [PATCH] orm: fix C compilation error (fixes #26224)

---
 vlib/v/checker/infix.v                        |  4 +++-
 .../orm_update_anon_fn_option_infix_err.out   |  7 ++++++
 .../orm_update_anon_fn_option_infix_err.vv    | 22 +++++++++++++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.out
 create mode 100644 vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.vv

diff --git a/vlib/v/checker/infix.v b/vlib/v/checker/infix.v
index 638adaf0a..c00ab4cba 100644
--- a/vlib/v/checker/infix.v
+++ b/vlib/v/checker/infix.v
@@ -1133,7 +1133,9 @@ fn (mut c Checker) check_sort_external_variable_access(node ast.Expr) bool {
 }
 
 fn (mut c Checker) check_option_infix_expr(node ast.InfixExpr, left_type ast.Type, right_type ast.Type, left_sym ast.TypeSymbol, right_sym ast.TypeSymbol) {
-	if c.inside_sql {
+	// SQL expressions can compare optional values directly, but anon fn bodies in SQL
+	// should keep regular option checks.
+	if c.inside_sql && !c.inside_anon_fn {
 		return
 	}
 	left_is_option := left_type.has_flag(.option)
diff --git a/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.out b/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.out
new file mode 100644
index 000000000..56de2e84d
--- /dev/null
+++ b/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.out
@@ -0,0 +1,7 @@
+vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.vv:19:17: error: `?string` cannot be used as `string`, unwrap the option first
+   17 |     sql db {
+   18 |         update User set email = fn [req] () string {
+   19 |         return if req.email != '' { 'nickname_1' } else { 'nickname_0' }
+      |                       ~~~~~
+   20 |     }() where id == '1'
+   21 |     }!
diff --git a/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.vv b/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.vv
new file mode 100644
index 000000000..ab2f83acf
--- /dev/null
+++ b/vlib/v/checker/tests/orm_update_anon_fn_option_infix_err.vv
@@ -0,0 +1,22 @@
+import db.sqlite
+
+struct User {
+	id    string @[primary]
+	email ?string
+}
+
+struct UserReq {
+	email ?string
+}
+
+fn main() {
+	mut db := sqlite.connect(':memory:')!
+	req := UserReq{
+		email: 'admin@admin.com'
+	}
+	sql db {
+		update User set email = fn [req] () string {
+		return if req.email != '' { 'nickname_1' } else { 'nickname_0' }
+	}() where id == '1'
+	}!
+}
-- 
2.39.5