add default parameter for AllConfig->get*Value()

lib/private/allconfig.php

@@ -25,11 +25,13 @@ class AllConfig implements \OCP\IConfig {
 
 	/**
 	 * Looks up a system wide defined value
+	 *
 	 * @param string $key the key of the value, under which it was saved
+	 * @param string $default the default value to be returned if the value isn't set
 	 * @return string the saved value
 	 */
-	public function getSystemValue($key) {
-		return \OCP\Config::getSystemValue($key, '');
+	public function getSystemValue($key, $default = '') {
+		return \OCP\Config::getSystemValue($key, $default);
 	}
 
 
@@ -45,12 +47,14 @@ class AllConfig implements \OCP\IConfig {
 
 	/**
 	 * Looks up an app wide defined value
+	 *
 	 * @param string $appName the appName that we stored the value under
 	 * @param string $key the key of the value, under which it was saved
+	 * @param string $default the default value to be returned if the value isn't set
 	 * @return string the saved value
 	 */
-	public function getAppValue($appName, $key) {
-		return \OCP\Config::getAppValue($appName, $key, '');
+	public function getAppValue($appName, $key, $default = '') {
+		return \OCP\Config::getAppValue($appName, $key, $default);
 	}
 
 
@@ -70,8 +74,10 @@ class AllConfig implements \OCP\IConfig {
 	 * @param string $userId the userId of the user that we want to store the value under
 	 * @param string $appName the appName that we stored the value under
 	 * @param string $key the key under which the value is being stored
+	 * @param string $default the default value to be returned if the value isn't set
+	 * @return string
 	 */
-	public function getUserValue($userId, $appName, $key){
-		return \OCP\Config::getUserValue($userId, $appName, $key);
+	public function getUserValue($userId, $appName, $key, $default = null){
+		return \OCP\Config::getUserValue($userId, $appName, $key, $default);
 	}
 }