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<title>[30846] trunk: In `WP_Meta_Query`, interpret 'value' correctly when used with EXISTS/NOT EXISTS.</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/30846">30846</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/30846","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>2014-12-14 19:00:31 +0000 (Sun, 14 Dec 2014)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>In `WP_Meta_Query`, interpret 'value' correctly when used with EXISTS/NOT EXISTS.
As in earlier versions, EXISTS with a value is equivalent to '=', while NOT
EXISTS should always ignore 'value'.
Props barrykooij.
Fixes <a href="https://core.trac.wordpress.org/ticket/30681">#30681</a> for trunk.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesmetaphp">trunk/src/wp-includes/meta.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="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 2014-12-14 12:33:56 UTC (rev 30845)
+++ trunk/src/wp-includes/meta.php 2014-12-14 19:00:31 UTC (rev 30846)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1419,6 +1419,17 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $where = $wpdb->prepare( '%s', $meta_value );
</span><span class="cx" style="display: block; padding: 0 10px"> break;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // EXISTS with a value is interpreted as '='.
+ case 'EXISTS' :
+ $meta_compare = '=';
+ $where = $wpdb->prepare( '%s', $meta_value );
+ break;
+
+ // 'value' is ignored for NOT EXISTS.
+ case 'NOT EXISTS' :
+ $where = '';
+ break;
+
</ins><span class="cx" style="display: block; padding: 0 10px"> default :
</span><span class="cx" style="display: block; padding: 0 10px"> $where = $wpdb->prepare( '%s', $meta_value );
</span><span class="cx" style="display: block; padding: 0 10px"> break;
</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 2014-12-14 12:33:56 UTC (rev 30845)
+++ trunk/tests/phpunit/tests/post/query.php 2014-12-14 19:00:31 UTC (rev 30846)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -538,6 +538,71 @@
</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">+ * @ticket 30681
+ */
+ public function test_meta_query_compare_exists() {
+ $posts = $this->factory->post->create_many( 3 );
+ add_post_meta( $posts[0], 'foo', 'bar' );
+ add_post_meta( $posts[2], 'foo', 'baz' );
+
+ $query = new WP_Query( array(
+ 'fields' => 'ids',
+ 'meta_query' => array(
+ array(
+ 'compare' => 'EXISTS',
+ 'key' => 'foo',
+ ),
+ ),
+ ) );
+
+ $this->assertEqualSets( array( $posts[0], $posts[2] ), $query->posts );
+ }
+
+ /**
+ * @ticket 30681
+ */
+ public function test_meta_query_compare_exists_with_value_should_convert_to_equals() {
+ $posts = $this->factory->post->create_many( 3 );
+ add_post_meta( $posts[0], 'foo', 'bar' );
+ add_post_meta( $posts[2], 'foo', 'baz' );
+
+ $query = new WP_Query( array(
+ 'fields' => 'ids',
+ 'meta_query' => array(
+ array(
+ 'compare' => 'EXISTS',
+ 'value' => 'baz',
+ 'key' => 'foo',
+ ),
+ ),
+ ) );
+
+ $this->assertEqualSets( array( $posts[2] ), $query->posts );
+ }
+
+ /**
+ * @ticket 30681
+ */
+ public function test_meta_query_compare_not_exists_should_ignore_value() {
+ $posts = $this->factory->post->create_many( 3 );
+ add_post_meta( $posts[0], 'foo', 'bar' );
+ add_post_meta( $posts[2], 'foo', 'baz' );
+
+ $query = new WP_Query( array(
+ 'fields' => 'ids',
+ 'meta_query' => array(
+ array(
+ 'compare' => 'NOT EXISTS',
+ 'value' => 'bar',
+ 'key' => 'foo',
+ ),
+ ),
+ ) );
+
+ $this->assertEqualSets( array( $posts[1] ), $query->posts );
+ }
+
+ /**
</ins><span class="cx" style="display: block; padding: 0 10px"> * @ticket 18158
</span><span class="cx" style="display: block; padding: 0 10px"> * @group meta
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span></span></pre>
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