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<title>[15626] trunk/wp-includes/query.php: Don't require category__in,
  tag__in etc.</title>
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<body>

<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/15626">15626</a></dd>
<dt>Author</dt> <dd>scribu</dd>
<dt>Date</dt> <dd>2010-09-17 22:27:22 +0000 (Fri, 17 Sep 2010)</dd>
</dl>

<h3>Log Message</h3>
<pre>Don't require category__in, tag__in etc. to be arrays necessarily. Fixes <a href="http://trac.wordpress.org/ticket/14892">#14892</a></pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesqueryphp">trunk/wp-includes/query.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwpincludesqueryphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/query.php (15625 => 15626)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/query.php        2010-09-17 17:07:11 UTC (rev 15625)
+++ trunk/wp-includes/query.php        2010-09-17 22:27:22 UTC (rev 15626)
</span><span class="lines">@@ -1286,34 +1286,30 @@
</span><span class="cx">                         if ( empty($qv['cat']) || ($qv['cat'] == '0') ) {
</span><span class="cx">                                 $this-&gt;is_category = false;
</span><span class="cx">                         } else {
</span><del>-                                if ( strpos($qv['cat'], '-') !== false ) {
-                                        $this-&gt;is_category = false;
-                                } else {
-                                        $this-&gt;is_category = true;
-                                }
</del><ins>+                                $this-&gt;is_category = strpos($qv['cat'], '-') !== false;
</ins><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( '' != $qv['category_name'] ) {
</del><ins>+                        if ( !empty($qv['category_name']) ) {
</ins><span class="cx">                                 $this-&gt;is_category = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['category__in']) || empty($qv['category__in']) ) {
</del><ins>+                        if ( empty($qv['category__in']) ) {
</ins><span class="cx">                                 $qv['category__in'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['category__in'] = array_map('absint', $qv['category__in']);
</del><ins>+                                $qv['category__in'] = array_map('absint', (array) $qv['category__in']);
</ins><span class="cx">                                 $this-&gt;is_category = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['category__not_in']) || empty($qv['category__not_in']) ) {
</del><ins>+                        if ( empty($qv['category__not_in']) ) {
</ins><span class="cx">                                 $qv['category__not_in'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['category__not_in'] = array_map('absint', $qv['category__not_in']);
</del><ins>+                                $qv['category__not_in'] = array_map('absint', (array) $qv['category__not_in']);
</ins><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['category__and']) || empty($qv['category__and']) ) {
</del><ins>+                        if ( empty($qv['category__and']) ) {
</ins><span class="cx">                                 $qv['category__and'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['category__and'] = array_map('absint', $qv['category__and']);
</del><ins>+                                $qv['category__and'] = array_map('absint', (array) $qv['category__and']);
</ins><span class="cx">                                 $this-&gt;is_category = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span><span class="lines">@@ -1321,40 +1317,40 @@
</span><span class="cx">                                 $this-&gt;is_tag = true;
</span><span class="cx"> 
</span><span class="cx">                         $qv['tag_id'] = absint($qv['tag_id']);
</span><del>-                        if (  !empty($qv['tag_id']) )
</del><ins>+                        if ( !empty($qv['tag_id']) )
</ins><span class="cx">                                 $this-&gt;is_tag = true;
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['tag__in']) || empty($qv['tag__in']) ) {
</del><ins>+                        if ( empty($qv['tag__in']) ) {
</ins><span class="cx">                                 $qv['tag__in'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['tag__in'] = array_map('absint', $qv['tag__in']);
</del><ins>+                                $qv['tag__in'] = array_map('absint', (array) $qv['tag__in']);
</ins><span class="cx">                                 $this-&gt;is_tag = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['tag__not_in']) || empty($qv['tag__not_in']) ) {
</del><ins>+                        if ( empty($qv['tag__not_in']) ) {
</ins><span class="cx">                                 $qv['tag__not_in'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['tag__not_in'] = array_map('absint', $qv['tag__not_in']);
</del><ins>+                                $qv['tag__not_in'] = array_map('absint', (array) $qv['tag__not_in']);
</ins><span class="cx">                         }
</span><span class="cx"> 
</span><span class="cx">                         if ( !is_array($qv['tag__and']) || empty($qv['tag__and']) ) {
</span><span class="cx">                                 $qv['tag__and'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['tag__and'] = array_map('absint', $qv['tag__and']);
-                                $this-&gt;is_category = true;
</del><ins>+                                $qv['tag__and'] = array_map('absint', (array) $qv['tag__and']);
+                                $this-&gt;is_tag = true;
</ins><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['tag_slug__in']) || empty($qv['tag_slug__in']) ) {
</del><ins>+                        if ( empty($qv['tag_slug__in']) ) {
</ins><span class="cx">                                 $qv['tag_slug__in'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['tag_slug__in'] = array_map('sanitize_title', $qv['tag_slug__in']);
</del><ins>+                                $qv['tag_slug__in'] = array_map('sanitize_title', (array) $qv['tag_slug__in']);
</ins><span class="cx">                                 $this-&gt;is_tag = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span><del>-                        if ( !is_array($qv['tag_slug__and']) || empty($qv['tag_slug__and']) ) {
</del><ins>+                        if ( empty($qv['tag_slug__and']) ) {
</ins><span class="cx">                                 $qv['tag_slug__and'] = array();
</span><span class="cx">                         } else {
</span><del>-                                $qv['tag_slug__and'] = array_map('sanitize_title', $qv['tag_slug__and']);
</del><ins>+                                $qv['tag_slug__and'] = array_map('sanitize_title', (array) $qv['tag_slug__and']);
</ins><span class="cx">                                 $this-&gt;is_tag = true;
</span><span class="cx">                         }
</span><span class="cx"> 
</span></span></pre>
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