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<title>[29953] trunk/src/wp-includes/meta.php: Remove redundant table alias check in WP_Meta_Query.</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/29953">29953</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/29953","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>boonebgorges</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2014-10-18 02:21:33 +0000 (Sat, 18 Oct 2014)</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'>Remove redundant table alias check in WP_Meta_Query.
Also adds documentation for 'meta_query_find_compatible_table_alias' filter.
See <a href="https://core.trac.wordpress.org/ticket/24093">#24093</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesmetaphp">trunk/src/wp-includes/meta.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesmetaphp"></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/meta.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/meta.php 2014-10-17 22:14:49 UTC (rev 29952)
+++ trunk/src/wp-includes/meta.php 2014-10-18 02:21:33 UTC (rev 29953)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1331,18 +1331,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $join .= " LEFT JOIN $this->meta_table";
</span><span class="cx" style="display: block; padding: 0 10px"> $join .= $i ? " AS $alias" : '';
</span><span class="cx" style="display: block; padding: 0 10px"> $join .= $wpdb->prepare( " ON ($this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column AND $alias.meta_key = %s )", $clause['key'] );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $sql_chunks['join'][] = $join;
</del><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // All other JOIN clauses.
</span><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $alias = $this->find_compatible_table_alias( $clause, $parent_query );
- if ( false === $alias ) {
- $alias = $i ? 'mt' . $i : $this->meta_table;
-
- $join .= " INNER JOIN $this->meta_table";
- $join .= $i ? " AS $alias" : '';
- $join .= " ON ( $this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column )";
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $join .= " INNER JOIN $this->meta_table";
+ $join .= $i ? " AS $alias" : '';
+ $join .= " ON ( $this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column )";
</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"> $this->table_aliases[] = $alias;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1469,6 +1463,16 @@
</span><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">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Filter the table alias identified as compatible with the current clause.
+ *
+ * @since 4.1.0
+ *
+ * @param string|bool $alias Table alias, or false if none was found.
+ * @param array $clause First-order query clause.
+ * @param array $parent_query Parent of $clause.
+ * @param object $this WP_Meta_Query object.
+ */
</ins><span class="cx" style="display: block; padding: 0 10px"> return apply_filters( 'meta_query_find_compatible_table_alias', $alias, $clause, $parent_query, $this ) ;
</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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