From 80e889946bc4e38e987f46a13f95ee177ea934dc Mon Sep 17 00:00:00 2001
From: igor <mino@tpsoft.org>
Date: Mon, 13 Oct 2025 23:26:19 +0200
Subject: [PATCH] improved Maintenance for MySQL and SQLite DB type

---
 composer.json       |  2 +-
 src/Maintenance.php | 33 ++++++++++++++++++++++++++++-----
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/composer.json b/composer.json
index 4c5a78b..a0a8359 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
 	"description": "This library extends the builtin PDO object by several useful features. ",
 	"type": "library",
 	"readme": "README.md",
-	"keywords": ["db", "model", "pdo"],
+	"keywords": ["db", "model", "pdo", "mysql", "sqlite"],
 	"authors": [
 		{
 			"name": "Igor Mino",
diff --git a/src/Maintenance.php b/src/Maintenance.php
index cf034d6..3990f0a 100644
--- a/src/Maintenance.php
+++ b/src/Maintenance.php
@@ -81,10 +81,21 @@ class Maintenance
 
 	public function existsTable($table_name)
 	{
-		return $this->testDB(
-			'SHOW TABLES LIKE "' . $table_name . '"',
-			$table_name
-		);
+		$db_type = $this->dbh->getDBtype();
+		switch ($db_type) {
+			case 'mysql':
+				return $this->testDB(
+					'SHOW TABLES LIKE "' . $table_name . '"',
+					$table_name
+				);
+			case 'sqlite':
+				return $this->testDB(
+					'SELECT name FROM sqlite_master WHERE TYPE = "table" AND name LIKE "' . $table_name . '"',
+					$table_name
+				);
+			default:
+				new \Exception('Unknown DB type: ' . $db_type);
+		}
 	}
 
 	public function checkDBTable($table_name, $definition, $after_definition = '')
@@ -93,9 +104,21 @@ class Maintenance
 			$this->lastMessage = 'Table ' . strtoupper($table_name) . ' - invalid index';
 			return Maintenance::ABNORMAL;
 		}
+		$check_query = '';
+		$db_type = $this->dbh->getDBtype();
+		switch ($db_type) {
+			case 'mysql':
+				$check_query = 'SHOW TABLES LIKE "' . $table_name . '"';
+				break;
+			case 'sqlite':
+				$check_query = 'SELECT name FROM sqlite_master WHERE TYPE = "table" AND name LIKE "' . $table_name . '"';
+				break;
+			default:
+				new \Exception('Unknown DB type: ' . $db_type);
+		}
 		$status = $this->checkDB(
 			// TEST query
-			'SHOW TABLES LIKE "' . $table_name . '"',
+			$check_query,
 			// TEST output
 			$table_name,
 			// FIX query