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<title>[16137] trunk/wp-admin/includes/class-wp-ms-sites-list-table.php:
For large networks,
show the latest registered blogs without paging to avoid expensive count queries
.</title>
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<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/16137">16137</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2010-11-01 17:53:03 +0000 (Mon, 01 Nov 2010)</dd>
</dl>
<h3>Log Message</h3>
<pre>For large networks, show the latest registered blogs without paging to avoid expensive count queries. see <a href="http://trac.wordpress.org/ticket/15170">#15170</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpadminincludesclasswpmssiteslisttablephp">trunk/wp-admin/includes/class-wp-ms-sites-list-table.php</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunkwpadminincludesclasswpmssiteslisttablephp"></a>
<div class="modfile"><h4>Modified: trunk/wp-admin/includes/class-wp-ms-sites-list-table.php (16136 => 16137)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-admin/includes/class-wp-ms-sites-list-table.php 2010-11-01 16:30:27 UTC (rev 16136)
+++ trunk/wp-admin/includes/class-wp-ms-sites-list-table.php 2010-11-01 17:53:03 UTC (rev 16137)
</span><span class="lines">@@ -32,6 +32,17 @@
</span><span class="cx"> $s = isset( $_REQUEST['s'] ) ? stripslashes( trim( $_REQUEST[ 's' ] ) ) : '';
</span><span class="cx"> $like_s = esc_sql( like_escape( $s ) );
</span><span class="cx">
</span><ins>+ $large_network = false;
+ // If the network is large and a search is not being performed, show only the latest blogs with no paging in order
+ // to avoid expensive count queries.
+ if ( !$s && ( get_blog_count() >= 10000 ) ) {
+ if ( !isset($_REQUEST['orderby']) )
+ $_GET['orderby'] = $_REQUEST['orderby'] = 'registered';
+ if ( !isset($_REQUEST['order']) )
+ $_GET['order'] = $_REQUEST['order'] = 'DESC';
+ $large_network = true;
+ }
+
</ins><span class="cx"> $query = "SELECT * FROM {$wpdb->blogs} WHERE site_id = '{$wpdb->siteid}' ";
</span><span class="cx">
</span><span class="cx"> if ( isset( $_REQUEST['searchaction'] ) ) {
</span><span class="lines">@@ -63,11 +74,16 @@
</span><span class="cx"> $order = ( isset( $_REQUEST['order'] ) && 'DESC' == strtoupper( $_REQUEST['order'] ) ) ? "DESC" : "ASC";
</span><span class="cx"> $query .= $order;
</span><span class="cx">
</span><del>- $total = $wpdb->get_var( str_replace( 'SELECT *', 'SELECT COUNT( blog_id )', $query ) );
</del><ins>+ // Don't do an unbounded count on large networks
+ if ( ! $large_network )
+ $total = $wpdb->get_var( str_replace( 'SELECT *', 'SELECT COUNT( blog_id )', $query ) );
</ins><span class="cx">
</span><span class="cx"> $query .= " LIMIT " . intval( ( $pagenum - 1 ) * $per_page ) . ", " . intval( $per_page );
</span><span class="cx"> $this->items = $wpdb->get_results( $query, ARRAY_A );
</span><span class="cx">
</span><ins>+ if ( $large_network )
+ $total = count($this->items);
+
</ins><span class="cx"> $this->set_pagination_args( array(
</span><span class="cx"> 'total_items' => $total,
</span><span class="cx"> 'per_page' => $per_page,
</span></span></pre>
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