Add back function to get driver name (fix #919)

This reverts fe88f83.

adminer/include/driver.inc.php

@@ -13,12 +13,13 @@ function add_driver($id, $name) {
 	$drivers[$id] = $name;
 }
 
-/** Get driver
-* @return Driver
+/** Get driver name
+* @param string
+* @return string
 */
-function get_driver() {
-	global $driver;
-	return $driver;
+function get_driver($id) {
+	global $drivers;
+	return $drivers[$id];
 }
 
 abstract class SqlDriver {

adminer/include/functions.inc.php

@@ -20,6 +20,14 @@ function adminer() {
 	return $adminer;
 }
 
+/** Get Driver object
+* @return Driver
+*/
+function driver() {
+	global $driver;
+	return $driver;
+}
+
 /** Get Adminer version
 * @return string
 */

plugins/drivers/elastic.php

@@ -61,7 +61,7 @@ if (isset($_GET["elastic"])) {
 			function query($path, array $content = null, $method = 'GET') {
 				// Support for global search through all tables
 				if ($path != "" && $path[0] == "S" && preg_match('/SELECT 1 FROM ([^ ]+) WHERE (.+) LIMIT ([0-9]+)/', $path, $matches)) {
-					$driver = get_driver();
+					$driver = driver();
 
 					$where = explode(" AND ", $matches[2]);
 

plugins/drivers/mongo.php

@@ -166,7 +166,7 @@ if (isset($_GET["mongo"])) {
 		}
 
 		function fields($table) {
-			$driver = get_driver();
+			$driver = driver();
 			$fields = fields_from_edit();
 			if (!$fields) {
 				$result = $driver->select($table, array("*"), null, null, array(), 10);