Fixes #29

Author: aristath

db.copy

@@ -14,8 +14,16 @@
 define( 'SQLITE_DB_DROPIN_VERSION', '1.8.0' );
 
 // Bail early if the SQLite implementation was not located in the plugin.
-if ( ! file_exists( '{SQLITE_IMPLEMENTATION_FOLDER_PATH}/wp-includes/sqlite/db.php' ) ) {
-	return;
+$sqlite_db_plugin_folder    = '{SQLITE_IMPLEMENTATION_FOLDER_PATH}';
+$sqlite_db_plugin_db_file   = $sqlite_db_plugin_folder . '/wp-includes/sqlite/db.php';
+$sqlite_db_plugin_main_file = WP_PLUGIN_DIR . '/{SQLITE_PLUGIN}';
+if ( ! file_exists( $sqlite_db_plugin_db_file ) ) {
+	$sqlite_db_plugin_folder    = WP_PLUGIN_DIR . '/sqlite-database-integration';
+	$sqlite_db_plugin_db_file   = $sqlite_db_plugin_folder . '/wp-includes/sqlite/db.php';
+	$sqlite_db_plugin_main_file = $sqlite_db_plugin_folder . '/load.php';
+	if ( ! file_exists( $sqlite_db_plugin_db_file ) ) {
+		return;
+	}
 }
 
 // Constant for backward compatibility.
@@ -28,20 +36,24 @@ if ( ! defined( 'DB_ENGINE' ) ) {
 }
 
 // Require the implementation from the plugin.
-require_once '{SQLITE_IMPLEMENTATION_FOLDER_PATH}/wp-includes/sqlite/db.php';
+require_once $sqlite_db_plugin_db_file;
 
 // Activate the performance-lab plugin if it is not already activated.
 add_action(
 	'admin_footer',
-	function() {
+	function() use ( $sqlite_db_plugin_main_file ) {
 		if ( defined( 'SQLITE_MAIN_FILE' ) ) {
 			return;
 		}
 		if ( ! function_exists( 'activate_plugin' ) ) {
 			require_once ABSPATH . 'wp-admin/includes/plugin.php';
 		}
-		if ( is_plugin_inactive( '{SQLITE_PLUGIN}' ) ) {
-			activate_plugin( '{SQLITE_PLUGIN}' );
+
+		if ( file_exists( $sqlite_db_plugin_main_file ) ) {
+			$plugin_file = str_replace( WP_PLUGIN_DIR . '/', '', $sqlite_db_plugin_main_file );
+			if ( is_plugin_inactive( $plugin_file ) ) {
+				activate_plugin( $plugin_file );
+			}
 		}
 	}
 );