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32 lines
961 B
PHP
32 lines
961 B
PHP
<?php
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/*
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* This file is part of Flarum.
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*
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* For detailed copyright and license information, please view the
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* LICENSE file that was distributed with this source code.
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*/
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namespace Flarum\Post;
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/**
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* A post that has the ability to be merged into an adjacent post.
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*
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* This is only implemented by certain types of posts. For example,
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* if a "discussion renamed" post is posted immediately after another
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* "discussion renamed" post, then the new one will be merged into the old one.
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*/
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interface MergeableInterface
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{
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/**
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* Save the model, given that it is going to appear immediately after the
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* passed model.
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*
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* @param \Flarum\Post\Post|null $previous
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* @return Post The model resulting after the merge. If the merge is
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* unsuccessful, this should be the current model instance. Otherwise,
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* it should be the model that was merged into.
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*/
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public function saveAfter(Post $previous = null);
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}
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