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<title>[42581] trunk: Query: Fix warning on counting non countable</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/42581">42581</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/42581","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>jorbin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-01-24 01:20:24 +0000 (Wed, 24 Jan 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'>Query: Fix warning on counting non countable

Adds tests to continue the behavior for both null and strings.

See https://wiki.php.net/rfc/counting_non_countables for information on the PHP change.

Fixes <a href="https://core.trac.wordpress.org/ticket/42860">#42860</a>.
Props janak007 and ayeshrajans for initial patches.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpqueryphp">trunk/src/wp-includes/class-wp-query.php</a></li>
<li><a href="#trunktestsphpunittestspostqueryphp">trunk/tests/phpunit/tests/post/query.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpqueryphp"></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/class-wp-query.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-query.php  2018-01-24 01:14:17 UTC (rev 42580)
+++ trunk/src/wp-includes/class-wp-query.php    2018-01-24 01:20:24 UTC (rev 42581)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3158,7 +3158,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><span class="cx" style="display: block; padding: 0 10px">                        $this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) );
</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">-                        $this->found_posts = count( $this->posts );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( is_array( $this->posts ) ) {
+                               $this->found_posts = count( $this->posts );
+                       } else {
+                               if ( null === $this->posts ) {  
+                                       $this->found_posts = 0;
+                               } else {
+                                       $this->found_posts = 1;
+                               }
+                       }
</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">                /**
</span></span></pre></div>
<a id="trunktestsphpunittestspostqueryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/post/query.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/post/query.php  2018-01-24 01:14:17 UTC (rev 42580)
+++ trunk/tests/phpunit/tests/post/query.php    2018-01-24 01:20:24 UTC (rev 42581)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -642,4 +642,45 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertEquals( 2, $q->found_posts );
</span><span class="cx" style="display: block; padding: 0 10px">                $this->assertEquals( 2, $q->max_num_pages );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+       /**
+        * @ticket 42860
+        */
+       public function test_set_found_posts_fields_posts_is_string() {
+               $q = new WP_Query(
+                       array(
+                               'post_type'      => 'wptests_pt',
+                               'posts_per_page' => 1,
+                       )
+               );
+
+               $q->posts = "To life, to life, l'chaim";
+
+               $methd = new \ReflectionMethod( 'WP_Query', 'set_found_posts' );
+               $methd->setAccessible( true );
+               $methd->invoke( $q, array( 'no_found_rows' => false ), array() );
+
+               $this->assertEquals( 1, $q->found_posts );
+       }
+
+       /**
+        * @ticket 42860
+        */
+       public function test_set_found_posts_fields_posts_is_null() {
+               $q = new WP_Query(
+                       array(
+                               'post_type'      => 'wptests_pt',
+                               'posts_per_page' => 1,
+                       )
+               );
+
+               $q->posts = null;
+
+               $methd = new \ReflectionMethod( 'WP_Query', 'set_found_posts' );
+               $methd->setAccessible( true );
+               $methd->invoke( $q, array( 'no_found_rows' => false ), array() );
+
+               $this->assertEquals( 0, $q->found_posts );
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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