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In WP_Meta_Query, interpret 'value' correctly when used with EXISTS/NOT EXISTS.

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As in earlier versions, EXISTS with a value is equivalent to '=', while NOT
EXISTS should always ignore 'value'.

Merges [30846] to the 4.1 branch.

Props barrykooij.
Fixes #30681

Built from https://develop.svn.wordpress.org/branches/4.1@30848


git-svn-id: http://core.svn.wordpress.org/branches/4.1@30838 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
John Blackbourn 2014-12-14 19:31:23 +00:00
parent deec4ec7ee
commit 2fc06d04c5
1 changed files with 11 additions and 0 deletions
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11
wp-includes/meta.php
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@ -1419,6 +1419,17 @@ class WP_Meta_Query {
$where = $wpdb->prepare( '%s', $meta_value );
break;
// 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;
default :
$where = $wpdb->prepare( '%s', $meta_value );
break;