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<title>[44925] trunk/src/wp-includes/ms-site.php: Multisite: Ensure site meta caches are not primed unless the `wp_blogmeta` table is available.</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/44925">44925</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/44925","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>flixos90</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-03-18 15:47:36 +0000 (Mon, 18 Mar 2019)</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'>Multisite: Ensure site meta caches are not primed unless the `wp_blogmeta` table is available.
Prior to this change, querying sites early in the bootstrap process could potentially cause a fatal error, since at that stage the filter to bail on updating site meta cache if the respective database table has not been installed yet is not hooked in yet. This changeset forces the filter to be added if that is not already the case.
Props spacedmonkey.
Fixes <a href="https://core.trac.wordpress.org/ticket/46167">#46167</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpincludesmssitephp">trunk/src/wp-includes/ms-site.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesmssitephp"></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/ms-site.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/ms-site.php 2019-03-18 15:21:17 UTC (rev 44924)
+++ trunk/src/wp-includes/ms-site.php 2019-03-18 15:47:36 UTC (rev 44925)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -380,6 +380,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @return array|false Returns false if there is nothing to update. Returns an array of metadata on success.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function update_sitemeta_cache( $site_ids ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Ensure this filter is hooked in even if the function is called early.
+ if ( ! has_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' ) ) {
+ add_filter( 'update_blog_metadata_cache', 'wp_check_site_meta_support_prefilter' );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> return update_meta_cache( 'blog', $site_ids );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre>
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