From 84224b7deb301acffb21cbc3df9da1a29c1d91db Mon Sep 17 00:00:00 2001
From: chyroc <chyroc@qq.com>
Date: Thu, 2 Feb 2023 17:37:33 +0800
Subject: [PATCH] fix: ignore nil query

---
 statement.go      | 3 +++
 statement_test.go | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/statement.go b/statement.go
index b99648fa..08165293 100644
--- a/statement.go
+++ b/statement.go
@@ -311,6 +311,9 @@ func (stmt *Statement) BuildCondition(query interface{}, args ...interface{}) []
 	conds := make([]clause.Expression, 0, 4)
 	args = append([]interface{}{query}, args...)
 	for idx, arg := range args {
+		if arg == nil {
+			continue
+		}
 		if valuer, ok := arg.(driver.Valuer); ok {
 			arg, _ = valuer.Value()
 		}
diff --git a/statement_test.go b/statement_test.go
index 761daf37..648bc875 100644
--- a/statement_test.go
+++ b/statement_test.go
@@ -35,6 +35,13 @@ func TestWhereCloneCorruption(t *testing.T) {
 	}
 }
 
+func TestNilCondition(t *testing.T) {
+	s := new(Statement)
+	if len(s.BuildCondition(nil)) != 0 {
+		t.Errorf("Nil condition should be empty")
+	}
+}
+
 func TestNameMatcher(t *testing.T) {
 	for k, v := range map[string][]string{
 		"table.name":         {"table", "name"},