Ticket #42209: 42209.2.diff

src/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php

@@ -210 +210 @@
                 }
 
                 if ( in_array( 'types', $fields, true ) ) {
-                        $data['types'] = $taxonomy->object_type;
+                        $data['types'] = array_values( $taxonomy->object_type );
                 }
 
                 if ( in_array( 'show_cloud', $fields, true ) ) {

tests/phpunit/tests/rest-api/rest-taxonomies-controller.php

@@ -195 +195 @@
                 );
         }
 
+        public function test_object_types_is_an_array_if_object_type_is_unregistered() {
+
+                register_taxonomy_for_object_type( 'category', 'page' );
+                register_taxonomy_for_object_type( 'category', 'attachment' );
+                unregister_taxonomy_for_object_type( 'category', 'page' );
+
+                $request  = new WP_REST_Request( 'GET', '/wp/v2/taxonomies/category' );
+                $response = rest_get_server()->dispatch( $request );
+
+                $types = $response->get_data()['types'];
+                $this->assertArrayHasKey( 0, $types );
+                $this->assertEquals( 'post', $types[0] );
+                $this->assertArrayHasKey( 1, $types );
+                $this->assertEquals( 'attachment', $types[1] );
+        }
+
         public function test_get_item_schema() {
                 $request    = new WP_REST_Request( 'OPTIONS', '/wp/v2/taxonomies' );
                 $response   = rest_get_server()->dispatch( $request );