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<title>[35817] trunk: Prevent unnecessary $wpdb->update() when hierarchical post doesn't have children.</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/35817">35817</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/35817","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>joehoyle</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-12-07 17:46:35 +0000 (Mon, 07 Dec 2015)</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'>Prevent unnecessary $wpdb->update() when hierarchical post doesn't have children.
Props danielbachhuber.
Fixes <a href="https://core.trac.wordpress.org/ticket/34896">#34896</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludespostphp">trunk/src/wp-includes/post.php</a></li>
<li><a href="#trunktestsphpunittestspostphp">trunk/tests/phpunit/tests/post.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludespostphp"></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/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/post.php 2015-12-07 17:07:37 UTC (rev 35816)
+++ trunk/src/wp-includes/post.php 2015-12-07 17:46:35 UTC (rev 35817)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2405,8 +2405,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // Point children of this page to its parent, also clean the cache of affected children.
</span><span class="cx" style="display: block; padding: 0 10px"> $children_query = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_parent = %d AND post_type = %s", $postid, $post->post_type );
</span><span class="cx" style="display: block; padding: 0 10px"> $children = $wpdb->get_results( $children_query );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
- $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => $post->post_type ) );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( $children ) {
+ $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => $post->post_type ) );
+ }
</ins><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"> // Do raw query. wp_get_post_revisions() is filtered.
</span></span></pre></div>
<a id="trunktestsphpunittestspostphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/post.php 2015-12-07 17:07:37 UTC (rev 35816)
+++ trunk/tests/phpunit/tests/post.php 2015-12-07 17:46:35 UTC (rev 35817)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1253,4 +1253,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals(get_date_from_gmt($post['post_date_gmt']), $out->post_date);
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals($post['post_date_gmt'], $out->post_date_gmt);
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ function test_wp_delete_post_reassign_hierarchical_post_type() {
+ $grandparent_page_id = self::factory()->post->create( array( 'post_type' => 'page' ) );
+ $parent_page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_parent' => $grandparent_page_id ) );
+ $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_parent' => $parent_page_id ) );
+ $this->assertEquals( $parent_page_id, get_post( $page_id )->post_parent );
+ wp_delete_post( $parent_page_id, true );
+ $this->assertEquals( $grandparent_page_id, get_post( $page_id )->post_parent );
+ wp_delete_post( $grandparent_page_id, true );
+ $this->assertEquals( 0, get_post( $page_id )->post_parent );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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