Ticket #27918: 27918.3.diff

src/wp-includes/taxonomy-functions.php

@@ -153 +153 @@
 
         $field = ('names' == $output) ? 'name' : false;
 
-        return wp_filter_object_list($wp_taxonomies, $args, $operator, $field);
+        // Handle 'object_type' separately.
+        if ( isset( $args['object_type'] ) ) {
+                $object_type = (array) $args['object_type'];
+                unset( $args['object_type'] );
+        }
+
+        $taxonomies = wp_filter_object_list( $wp_taxonomies, $args, $operator );
+
+        if ( isset( $object_type ) ) {
+                foreach ( $taxonomies as $tax => $tax_data ) {
+                        if ( ! array_intersect( $object_type, $tax_data->object_type ) ) {
+                                unset( $taxonomies[ $tax ] );
+                        }
+                }
+        }
+
+        if ( $field ) {
+                $taxonomies = wp_list_pluck( $taxonomies, $field );
+        }
+
+        return $taxonomies;
 }
 
 /**

tests/phpunit/tests/taxonomy.php

@@ -482 +482 @@
 
                 $this->assertFalse( is_tax( 'wptests_tax' ) );
         }
+
+        /**
+         * @ticket 27918
+         */
+        public function test_get_taxonomies_filtered_by_object_type() {
+                register_post_type( 'wptests_pt' );
+                register_taxonomy( 'wptests_tax_1', 'wptests_pt' );
+                register_taxonomy( 'wptests_tax_2', array( 'wptests_pt', 'post' ) );
+                register_taxonomy( 'wptests_tax_3', 'post' );
+
+                $taxonomies = get_taxonomies( array(
+                        'object_type' => array( 'wptests_pt' ),
+                ) );
+
+                $this->assertContains( 'wptests_tax_1', $taxonomies );
+                $this->assertContains( 'wptests_tax_2', $taxonomies );
+                $this->assertNotContains( 'wptests_tax_3', $taxonomies );
+        }
 }