Add category output to ApiExpandTemplates

The preprocessor sometimes adds pages to categories itself, which don't
have any representation in the output of ApiExpandTemplates. Because of
this, add a new field containing these categories.

Change-Id: I7ae2eb9daf68e032dcc7a650bd8391d445ee1037

diff --git a/includes/api/ApiExpandTemplates.php b/includes/api/ApiExpandTemplates.php
index b42a30b..9a472f5 100644 (file)
--- a/includes/api/ApiExpandTemplates.php
+++ b/includes/api/ApiExpandTemplates.php
@@ -70,6 +70,18 @@ class ApiExpandTemplates extends ApiBase {
                }
                $frame = $wgParser->getPreprocessor()->newFrame();
                $retval = $wgParser->preprocess( $params['text'], $title_obj, $options, null, $frame );
+               $categories = $wgParser->getOutput()->getCategories();
+               if ( !empty( $categories ) ) {
+                       $categories_result = array();
+                       foreach ( $categories as $category => $sortkey ) {
+                               $entry = array();
+                               $entry['sortkey'] = $sortkey;
+                               ApiResult::setContent( $entry, $category );
+                               $categories_result[] = $entry;
+                       }
+                       $result->setIndexedTagName( $categories_result, 'category' );
+                       $result->addValue( null, 'categories', $categories_result );
+               }
 
                // Return result
                $retval_array = array();