Add ILocalizedException interface

We already throw around some exceptions that are localized
(ErrorPageError and its subclasses, MalformedTitleException), but
there's no standard way to recognize them. Let's change that.

Then let's use them in the API to be able to have internationalized
errors when such exceptions are caught, instead of wrapping the
English-language version.

Change-Id: Iac7c90f92a889f8de9dae373547c07b884addaea

1 files changed, 8 insertions, 1 deletions

diff --git a/includes/api/ApiUsageException.php b/includes/api/ApiUsageException.php
index 7e21ab5ba446..9dc1f92bbc7d 100644
--- a/includes/api/ApiUsageException.php
+++ b/includes/api/ApiUsageException.php
@@ -95,7 +95,7 @@ class UsageException extends MWException {
  *  starts throwing ApiUsageException. Eventually UsageException will go away
  *  and this will (probably) extend MWException directly.
  */
-class ApiUsageException extends UsageException {
+class ApiUsageException extends UsageException implements ILocalizedException {
 
 	protected $modulePath;
 	protected $status;
@@ -202,6 +202,13 @@ class ApiUsageException extends UsageException {
 	}
 
 	/**
+	 * @inheritdoc
+	 */
+	public function getMessageObject() {
+		return $this->status->getMessage();
+	}
+
+	/**
 	 * @return string
 	 */
 	public function __toString() {