HTMLForm: Show more options when incorrect displayFormat is set

Change-Id: I47a4684f01f5e30629e819403d7445479c4607da

diff --git a/includes/htmlform/HTMLForm.php b/includes/htmlform/HTMLForm.php
index 61d0d89..d4351e0 100644 (file)
--- a/includes/htmlform/HTMLForm.php
+++ b/includes/htmlform/HTMLForm.php
@@ -400,7 +400,13 @@ class HTMLForm extends ContextSource {
 
                if ( !in_array( $format, $this->availableDisplayFormats, true ) ) {
                        throw new MWException( 'Display format must be one of ' .
-                               print_r( $this->availableDisplayFormats, true ) );
+                               print_r(
+                                       array_merge(
+                                               $this->availableDisplayFormats,
+                                               $this->availableSubclassDisplayFormats
+                                       ),
+                                       true
+                               ) );
                }
 
                // Evil hack for mobile :(