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<title>[44174] Meta boxes: Don't assume that callback args are an array.</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/44174">44174</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/44174","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>atimmer</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-12-14 09:38:09 +0000 (Fri, 14 Dec 2018)</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'>Meta boxes: Don't assume that callback args are an array.
While the documentation for add_meta_box() specifices that $callback_args should be an array, this has never been enforced, and we have workarounds in place for when it's passed as something other than an array.
Rather than break sites that are passing unexpected data, we can quietly just allow for it, instead.
Props johnjamesjacoby, birgire, pento.
Merges <a href="https://core.trac.wordpress.org/changeset/43838">[43838]</a> to trunk.
Fixes <a href="https://core.trac.wordpress.org/ticket/45206">#45206</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludestemplatephp">trunk/src/wp-admin/includes/template.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#trunk">trunk/</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: trunk
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- trunk 2018-12-14 06:03:35 UTC (rev 44173)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ trunk 2018-12-14 09:38:09 UTC (rev 44174)
</ins><a id="trunk"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: trunk</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/3.3:20543
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43790-43806,43808-43821,43825,43828,43830-43834,43842,43859-43860,43869-43876,43892,43898-43899,43904,43909,43912,43926-43929,43954,43956,43961-43963
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43790-43806,43808-43821,43825,43828,43830-43834,43838,43842,43859-43860,43869-43876,43892,43898-43899,43904,43909,43912,43926-43929,43954,43956,43961-43963
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="trunksrcwpadminincludestemplatephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/template.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/template.php 2018-12-14 06:03:35 UTC (rev 44173)
+++ trunk/src/wp-admin/includes/template.php 2018-12-14 09:38:09 UTC (rev 44174)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1137,25 +1137,27 @@
</span><span class="cx" style="display: block; padding: 0 10px"> continue;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // Don't show boxes in the block editor, if they're just here for back compat.
- if ( $screen->is_block_editor() && isset( $box['args']['__back_compat_meta_box'] ) && $box['args']['__back_compat_meta_box'] ) {
- continue;
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( is_array( $box[ 'args' ] ) ) {
+ // If a meta box is just here for back compat, don't show it in the block editor.
+ if ( $screen->is_block_editor() && isset( $box['args']['__back_compat_meta_box'] ) && $box['args']['__back_compat_meta_box'] ) {
+ continue;
+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // Don't show boxes in the block editor that aren't compatible with the block editor.
- if ( $screen->is_block_editor() && isset( $box['args']['__block_editor_compatible_meta_box'] ) && ! $box['args']['__block_editor_compatible_meta_box'] ) {
- continue;
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // If a meta box doesn't work in the block editor, don't show it in the block editor.
+ if ( $screen->is_block_editor() && isset( $box['args']['__block_editor_compatible_meta_box'] ) && ! $box['args']['__block_editor_compatible_meta_box'] ) {
+ continue;
+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $block_compatible = true;
- if ( isset( $box['args']['__block_editor_compatible_meta_box'] ) ) {
- $block_compatible = (bool) $box['args']['__block_editor_compatible_meta_box'];
- unset( $box['args']['__block_editor_compatible_meta_box'] );
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $block_compatible = true;
+ if ( isset( $box['args']['__block_editor_compatible_meta_box'] ) ) {
+ $block_compatible = (bool) $box['args']['__block_editor_compatible_meta_box'];
+ unset( $box['args']['__block_editor_compatible_meta_box'] );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $box['args']['__back_compat_meta_box'] ) ) {
- $block_compatible |= (bool) $box['args']['__back_compat_meta_box'];
- unset( $box['args']['__back_compat_meta_box'] );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( isset( $box['args']['__back_compat_meta_box'] ) ) {
+ $block_compatible = $block_compatible || (bool) $box['args']['__back_compat_meta_box'];
+ unset( $box['args']['__back_compat_meta_box'] );
+ }
</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"> $i++;
</span></span></pre>
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