www.gusucode.com > Flarum中文优化论坛PHP源码程序 > FlarumChina-master/vendor/flarum/core/src/Core/Post/MergeableInterface.php
<?php /* * This file is part of Flarum. * * (c) Toby Zerner <toby.zerner@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Flarum\Core\Post; use Flarum\Core\Post; /** * A post that has the ability to be merged into an adjacent post. * * This is only implemented by certain types of posts. For example, * if a "discussion renamed" post is posted immediately after another * "discussion renamed" post, then the new one will be merged into the old one. */ interface MergeableInterface { /** * Save the model, given that it is going to appear immediately after the * passed model. * * @param Post|null $previous * @return Post The model resulting after the merge. If the merge is * unsuccessful, this should be the current model instance. Otherwise, * it should be the model that was merged into. */ public function saveAfter(Post $previous = null); }