Adding file, line, class and function to the query logger (#27298)

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

lib/private/legacy/db/statementwrapper.php

@@ -66,8 +66,11 @@ class OC_DB_StatementWrapper {
 	 */
 	public function execute($input=array()) {
 		if(\OC::$server->getSystemConfig()->getValue( "log_query", false)) {
+			$backTrace = debug_backtrace();
+			$class = $backTrace[1]['class'] . ':' . $backTrace[1]['function'];
+			$file = substr($backTrace[0]['file'], strlen(\OC::$SERVERROOT)) . ':' . $backTrace[0]['line'];
 			$params_str = str_replace("\n", " ", var_export($input, true));
-			\OCP\Util::writeLog('core', 'DB execute with arguments : '.$params_str, \OCP\Util::DEBUG);
+			\OCP\Util::writeLog('core', "DB execute with arguments : $params_str in $class; $file", \OCP\Util::DEBUG);
 		}
 		$this->lastArguments = $input;
 		if (count($input) > 0) {