Ticket #45954: 45954.2.diff

src/wp-admin/includes/class-wp-ms-sites-list-table.php

@@ -228 +228 @@
                 }
         }
 
+        /**
+         * Extra controls to be displayed between bulk actions and pagination.
+         *
+         * @since 5.3.0
+         *
+         * @param string $which
+         */
+        protected function extra_tablenav( $which ) {
+                ?>
+                <div class="alignleft actions">
+                <?php
+                if ( 'top' === $which ) {
+                        ob_start();
+
+                        /**
+                         * Fires before the Filter button on the MS sites list table.
+                         *
+                         * @since 5.3.0
+                         *
+                         * @param string $which The location of the extra table nav markup: 'top' or 'bottom'.
+                         */
+                        do_action( 'restrict_manage_sites', $which );
+                        $output = ob_get_clean();
+                        if ( ! empty( $output ) ) {
+                                echo $output;
+                                submit_button( __( 'Filter' ), '', 'filter_action', false, array( 'id' => 'site-query-submit' ) );
+                        }
+                }
+                ?>
+                </div>
+                <?php
+                /**
+                 * Fires immediately following the closing "actions" div in the tablenav for the
+                 * MS sites list table.
+                 *
+                 * @since 5.3.0
+                 *
+                 * @param string $which The location of the extra table nav markup: 'top' or 'bottom'.
+                 */
+                do_action( 'manage_sites_extra_tablenav', $which );
+        }
+
         /**
          * @return array
          */

src/wp-admin/network/sites.php

@@ -215 +215 @@
                                         wp_safe_redirect( $redirect_to );
                                         exit();
                                 }
-                        } else {
-                                $location = network_admin_url( 'sites.php' );
-                                if ( ! empty( $_REQUEST['paged'] ) ) {
-                                        $location = add_query_arg( 'paged', (int) $_REQUEST['paged'], $location );
-                                }
-                                wp_redirect( $location );
+                        }
+                        elseif ( ! empty( $_POST['_wp_http_referer'] ) ) {
+                                // process query defined by WP_MS_Site_List_Table::extra_table_nav().
+                                $query_args = $_POST;
+                                unset( $query_args['_wp_http_referer'], $query_args['_wpnonce'] );
+
+                                wp_safe_redirect( add_query_arg( $query_args, network_admin_url( 'sites.php' ) ) );
                                 exit();
                         }
+
                         break;
 
                 case 'archiveblog':