From a65912c5887f850f6262dca68ca8d0dc10ca1bcc Mon Sep 17 00:00:00 2001
From: Cr <631807682@qq.com>
Date: Wed, 13 Apr 2022 15:52:07 +0800
Subject: [PATCH] fix: FirstOrCreate RowsAffected (#5250)

---
 finisher_api.go      |  3 +++
 tests/create_test.go | 14 ++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/finisher_api.go b/finisher_api.go
index 5e4c3c5a..d35456a6 100644
--- a/finisher_api.go
+++ b/finisher_api.go
@@ -326,6 +326,9 @@ func (db *DB) FirstOrCreate(dest interface{}, conds ...interface{}) (tx *DB) {
 			}
 
 			return tx.Model(dest).Updates(assigns)
+		} else {
+			// can not use Find RowsAffected
+			tx.RowsAffected = 0
 		}
 	}
 	return tx
diff --git a/tests/create_test.go b/tests/create_test.go
index 2b23d440..3730172f 100644
--- a/tests/create_test.go
+++ b/tests/create_test.go
@@ -526,3 +526,17 @@ func TestCreateNilPointer(t *testing.T) {
 		t.Fatalf("it is not ErrInvalidValue")
 	}
 }
+
+func TestFirstOrCreateRowsAffected(t *testing.T) {
+	user := User{Name: "TestFirstOrCreateRowsAffected"}
+
+	res := DB.FirstOrCreate(&user, "name = ?", user.Name)
+	if res.Error != nil || res.RowsAffected != 1 {
+		t.Fatalf("first or create rows affect err:%v rows:%d", res.Error, res.RowsAffected)
+	}
+
+	res = DB.FirstOrCreate(&user, "name = ?", user.Name)
+	if res.Error != nil || res.RowsAffected != 0 {
+		t.Fatalf("first or create rows affect err:%v rows:%d", res.Error, res.RowsAffected)
+	}
+}