From 3af8d5caea0b667d7028e5cb23b6fd993778eb5a Mon Sep 17 00:00:00 2001
From: Gavin D'souza <gavin18d@gmail.com>
Date: Fri, 17 Jun 2022 12:47:44 +0530
Subject: [PATCH] fix: Add fallbacks for values

Psycopg seems to like None over () and MariaDB - PyMySQL can't seem to
agree on anything - so this seems to keep everyone happy...a very
delicate balance :crie:
---
 frappe/database/database.py          | 5 +++--
 frappe/database/postgres/database.py | 3 +++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/frappe/database/database.py b/frappe/database/database.py
index 68ab33d4f6..b6fc6f0fa8 100644
--- a/frappe/database/database.py
+++ b/frappe/database/database.py
@@ -71,7 +71,8 @@ class Database(object):
 
 		self.password = password or frappe.conf.db_password
 		self.value_cache = {}
-		# self.last_query lazy attribute of last sql query executed
+		# self.db_type: str
+		# self.last_query (lazy) attribute of last sql query executed
 
 	@property
 	def query(self):
@@ -101,7 +102,7 @@ class Database(object):
 		raise NotImplementedError
 
 	def _transform_query(self, query: Query, values: QueryValues):
-		return query, values
+		return query, values or None
 
 	def sql(
 		self,
diff --git a/frappe/database/postgres/database.py b/frappe/database/postgres/database.py
index f5ecabd6c4..0d4a177741 100644
--- a/frappe/database/postgres/database.py
+++ b/frappe/database/postgres/database.py
@@ -193,6 +193,9 @@ class PostgresDatabase(PostgresExceptionUtil, Database):
 			modify_query(query), modify_values(values), *args, **kwargs
 		)
 
+	def lazy_mogrify(self, *args, **kwargs) -> str:
+		return self.last_query
+
 	def get_tables(self, cached=True):
 		return [
 			d[0]