From 8ec990eed8e05067f86ea457765dc38e91e98ea0 Mon Sep 17 00:00:00 2001
From: jacksonmowry <96317858+jacksonmowry@users.noreply.github.com>
Date: Wed, 13 Mar 2024 12:39:15 +0000
Subject: [PATCH] db.sqlite: fix exec_param_many bug (#21008)

---
 vlib/db/sqlite/sqlite.c.v    |  3 +++
 vlib/db/sqlite/sqlite_test.v | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/vlib/db/sqlite/sqlite.c.v b/vlib/db/sqlite/sqlite.c.v
index f06997edc7..0f9a7afa91 100644
--- a/vlib/db/sqlite/sqlite.c.v
+++ b/vlib/db/sqlite/sqlite.c.v
@@ -315,6 +315,9 @@ pub fn (db &DB) exec_param_many(query string, params []string) ![]Row {
 	for {
 		res = C.sqlite3_step(stmt)
 		if res != sqlite.sqlite_row {
+			if rows.len == 0 && is_error(res) {
+				return db.error_message(res, query)
+			}
 			break
 		}
 		mut row := Row{}
diff --git a/vlib/db/sqlite/sqlite_test.v b/vlib/db/sqlite/sqlite_test.v
index 4bd5be062d..26e44d9eaa 100644
--- a/vlib/db/sqlite/sqlite_test.v
+++ b/vlib/db/sqlite/sqlite_test.v
@@ -95,3 +95,22 @@ fn test_alias_db() {
 	create_host(sqlite.connect(':memory:')!)!
 	assert true
 }
+
+fn test_exec_param_many() {
+	$if !linux {
+		return
+	}
+	mut db := sqlite.connect(':memory:') or { panic(err) }
+	assert db.is_open
+	db.exec('drop table if exists users')!
+	db.exec("create table users (id integer primary key, name text default '' unique);")!
+	db.exec("insert into users (name) values ('Sam')")!
+	db.exec_param_many('insert into users (id, name) values (?, ?)', [
+		'60',
+		'Sam',
+	]) or {
+		assert err.code() == 19 // constraint failure
+		return
+	}
+	assert false
+}