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<title>[39640] trunk/src/wp-includes/comment.php: Comments: Fix placement of the `wp_update_comment_data` filter to safeguard filtered data from triggering a database error.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/39640">39640</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/39640","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>rachelbaker</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-12-27 17:21:04 +0000 (Tue, 27 Dec 2016)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Comments: Fix placement of the `wp_update_comment_data` filter to safeguard filtered data from triggering a database error.
Introduced in <a href="https://core.trac.wordpress.org/changeset/38674">[38674]</a>, the `wp_update_comment_data` filter took place after the `$data` was sliced and prepared for the database update statement. The location of the filter assumed the result of anyone applying it would not change the data type or make structural modifications or additions to the $data array. ?\240?\159?\152?\133
This moves the `wp_update_comment_data` filter to take place before the `$data` is sliced and prepared for the database update statement.
Props dshanske for initial patch.
Fixes <a href="https://core.trac.wordpress.org/ticket/39380">#39380</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpincludescommentphp">trunk/src/wp-includes/comment.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludescommentphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/comment.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/comment.php 2016-12-27 09:27:38 UTC (rev 39639)
+++ trunk/src/wp-includes/comment.php 2016-12-27 17:21:04 UTC (rev 39640)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2186,8 +2186,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $comment_ID = $data['comment_ID'];
</span><span class="cx" style="display: block; padding: 0 10px"> $comment_post_ID = $data['comment_post_ID'];
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id', 'comment_agent', 'comment_author_IP' );
- $data = wp_array_slice_assoc( $data, $keys );
</del><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Filters the comment data immediately before it is updated in the database.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2202,6 +2200,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> $data = apply_filters( 'wp_update_comment_data', $data, $comment, $commentarr );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id', 'comment_agent', 'comment_author_IP' );
+ $data = wp_array_slice_assoc( $data, $keys );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> clean_comment_cache( $comment_ID );
</span></span></pre>
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